Not only a great job and ever educational, but just seeing your big smile of a satisfied craftsman at the end there nearly broke my face, I smiled so large! Thanks Keith! I always enjoy your videos and always learn plenty too, and heck, I also almost always leave with a big grin, and I won't tarnish this fabulous feeling by trying to recall the extremely few that you've left us in a less than joyful state. I really enjoy gearing and power transmission of almost all varieties, and so thanks again for that wonderful series. Aloha...Chuck.
Knolltop Farms Thank you Chuck - I was out your way last week and got to hook up with Chuck Bamarito (Outside Screwball) and Tom Lipton. Chuck lined up a little event on Saturday for all of us and a few other of the California bunch. I with I had thought about it earlier as I would have really liked to have got a chance to meet up with you as well. Oh well, maybe next time I get out to California....
You are welcome any time and I too would love to finally to add a palmshake ontop of our existing friendship. It's bound to happen one of these times, plus I'm sure Tom could only include so many on his tour so I cannot fault anyone for that ;) Thanks for your kind message and I'll "see you" on your next video. Oh, and BTW, at the State Fair today in Sacramento there was a Blacksmith with a forge blower that I'd almost swear was the twin to the one you're repairing. Dad and I both shouted "There it is!", as he often watches your videos too...Aloha, Pops and Chuck
What a joy it is Keith to watch "old school" machining, that includes all the preparation including mathematics. Watching a CNC machining process is clinical, hidden, robotic, some would say "cold". Whereas old school is warm and human.
Awsome work. I remember the suffering in the machine shop. Now I self inflict my own suffering. I broke the 40 year old bushog shaft for the second time,the verticle shaft. Machined and welded again. Going back to hogging oak branches again. I think of Keith as I turn on the lathe. How calm and smooth his work is, no destruction repair in his shop.
***** Believe me, I do plenty of destruction repair in my shop. At at the museum. And at work. Yeah, I do agriculture research for a living and we always have these things called "summer interns" - kids who have never been on a tractor that we are supposed to put to work. Lots of things to be fixed......
I tell you what Keith - one thing watching you do all these measurements and calculations has done is make me feel so *very* grateful I use metres, centimetres and millimetres!
+morelenmir What is funny is that I know that the metric system is so much easier, but for me, it is more difficult but only because I am so used to working with inches, feet, yards, and miles........
Keith Rucker - VintageMachinery.org I totally understand - and I was brought up just as things were changing over in Britain so I have some experience with both. I actually think the imperial system is much more organic. You almost know what an inch or a foot is without needing to measure it! By comparison the metric units feel very impersonal somehow, less easy to relate to. I think they are all based off the diameter of the earth of something like that? In contrast you chaps always have had base-10 money whereas it was a real wrench to loose our proper money in the seventies. I still miss guineas, shillings and crowns!!! Modern coins and notes still look like play-money to me.
Boy, you sure made it look easy. Can't wait to see how you are going to handle the bushing wear on the blower case. Tanks for sharing your craft with us.
jaime vega You need to go back and watch part 1 of this series: ruclips.net/video/9vk4S_zl3n8/видео.html. I reamed the original bearings out a bit oversized and then made the new pinion shafts slightly larger to fit the new holes.
Outex Roberto Miglioli Thanks for the note. I wish that we could have had some machine shop classes when I was in school. I remember taking "Metals Technology" my freshman year in high school and the shop had three or four nice South Bend lathes that we were not allowed to even touch much less actually use. Too bad.... I can remember sneaking over there and playing with the controls when no one was looking - the first time I ever touched a metal lathe.....
larry sperling Thanks Larry - I wish I could say that I planned to do this because it is what people want, but instead, it was just the next job that the museum threw at me!
Hi Keith, very well done precise work on the shafts and gears. I enjoy watching you do the machine work, and like that you are explaining the steps as you go. I am in the process of repairing a old Oliver 510 drill grinder. Two shafts four woodruff key slots, and five new bearings so far. Thanks Kieth, Harvey from Nebraska
binks166 I am glad that you are enjoying the site! The old Oliver drill grinder sounds interesting - shoot me some photos of it when you get it finished!
Thanks Keith. I couldn't specify where in your series the information you imparted exceeded my previous awareness of how you guys accomplish seemingly impossible machining operations, but it was toward the front somewhere. Now it feels as if I always knew it. To me, that makes you a great teacher, and I thank you very much.
Lee Humes Thanks Lee - I know the feeling you are talking about. Yesterday, I found an old black and white movie on RUclips made by the Hamilton Watch Company where they did a great job explaining how the mechanical mechanism in a watch works. They greatly simplified it, discussed some of the problems that had to be overcome, and put it all together in a way that made it "click". Makes me appreciate my pocket watches even more.....
Great North Woods Hillbilly Not sure about when it was new, but it was working pretty good the other week when I got it back together and in the blacksmith shop. Going to be at the museum on Saturday and get an update on how it is holding up.
Thanks for posting Keith. My shop teacher had a Brown and Sharpe dividing head, but we never got to see it in action. Always been been fascinated how gear teeth are shaped so they slide into mesh with one another. Thanks for the research on the need for the plastic gear. Learning a lot watching your videos.
Love your Video's. Even though english isn't my home language it's so easy for me to follow and understand. Learned so much already. You're a great Teacher !
Robert Kutz Truth be known, I am ahead of you guys as it is together and being used.... Still need to shoot some video of the blower being used and edit that final video. Coming soon!
Thanks Keith, Looking forward on learning some of you blacksmith skills. The way the world is going just might have to go back to that type of life. Have a great day....
Randall Moore While I have done a good bit of blacksmithing back in my younger days, I have not done hardly any in recent years. I am hoping that the museums blacksmith will be there when I show up with the video camera!
Thanks for showing the dividing-head setup. I am relieved to see that the stops can move relative to each other. I had been puzzling over how other ratios could be achieved with a fixed 120' angle... ha ha... I feel stupid now.
Hi Keith, thank you for your nice videos. I noticed that you measured the 50 teeth gear with two pins, not perfect opposite side but 24 teeth by 26 teeth :-P Anyway, I love so much your video and I always pause the picuture many times to taste every scenes. It is very much educational for me. Thank you very much.
He said he was just showing the principle for the video - having properly measured it with a mic - presumably that time, he had the pins properly opposite !
Great series Keith! Nice camera work as usual getting us some close up shots. Looking forward to seeing the blower all assembled and in the blacksmith shop...
turbocobra Thanks - I shot some video yesterday of the blacksmith at work at the museum using the blower. I will get that and the rest of the final video edited up this week and posted soon.
Hi Keith. I enjoy your videos greatly as they show some very good engineering techniques and applications. I especially like woodruff keys and when people ask my last name i always say it is woodruff as in the woodruff key. not many people understand it but i think it is quite cool. i would like to get more into milling and cutting keyways. i seem to have ended up with 4 lathes but as of yet no milling machines. i especially like to older machines and i am on the look out for older milling machines for the right price. thank you for your great videos. Nathan
Nathan Woodruff I know a couple of Woodruff's around here - I wonder if they even know what a Woodruff key is? Glad that you enjoy the videos! I hope you can find a mill to add to those lathes soon.....
Great video Keith. I remember as a kid many years ago, a few of my friends and I came across an old barn that had one of those blowers and a giant bellows. We were blowing dust and chaff all over that barn. The bellows was so big, it took two of us to raise the handle up, then one kid would jump on top to expel the air. I foolishly placed my hand if front of the nozzle and my hand was immediately stuck with needle like projectiles from the chaff, similar to a porcupine strike. try explaining that when you got home. Ah the good old days.
Having the ability to make gears like this sure opens up what you will be able to repair! Nice job. P.S. I thought that keyway broach was going to snap off at 9:30. I guess it'd be best to ease off the pressure mid stroke to allow it to line up with the press again.
Jack Hoying I was watching it pretty close and I think that the angle of the camera made it look worse than it was. I was kind of cringing myself when I saw it in video and I know that I was watching it close in real time.....
You all must have popeye out there turning that thing if he can slip a press fit gear with a foot long hand crank!! Still fun to watch you do the cuts and broaching. It is terrible hot and humid here, glad I don't have to stand next to a fire and crank that thing myself!!
bcbloc02 I am sure the press fit gear would have held up just fine - the originals did for the past 100 years. But a key will make sure that they don't slip! I don't want to have to ever go back into this thing..... Hot and humid it is here as well. Yesterday morning, I was at the museum and was soaking wet from sweat by 9:00 in the morning when I had to run to town. I got in the truck and the thermometer only read 78 degrees - but the humidity was so high that we were all soaked! By the afternoon, it was 95 degrees and it was getting pretty miserable. So miserable in fact, that I packed up and went to the house as I was working on something on the bench that I could do in my shop at the house and at least there I have a window AC unit to knock the temp down a few degrees! It was really fun when I was up on the steam locomotive around 12:00 for about 45 minuets - sitting next to the boiler in the cab of the engine was "really fun".
Great series indeed! I love watching all these informative video series from you, Keith Fenner, Jody, Abom etc. One do learn quite a lot. By the way, I did notice you nicked the corner on one of the gears ;) Keep up the great work!
larsmark You are observant! Yes, I did nick one of the teeth when I did not pull the gear out far enough before rotating it to the next tooth. It barely touched the corner and will not matter, but it sill made me mad....
Quick tip for checking if a blade is touching... Apply a thin coat of oil-based paint to a flat surface, and roll the blank on it. Then you can manually rotate the blade/etc and it will "scratch" the paint on the blank, without digging in. Shouldn't be an issue for larger gears like this, but if you start working with smaller parts, those tiny fractions where the blade is actually cutting into the blank can throw your calculations off.
Sean Harrington Ahhh, Sweet Tea - the nectar of the Gods..... Been so hot and humid lately that without some kind of big glass of something liquid, it is hard to stay in the shop. The heat index this past Saturday was 108 degrees.... I had to call it quits shortly after lunch....
Hey Keith. I tried doing a little gear making exercise on paper using my "Machinery's Handbook 24th edition" that I keep on my desk.. I got stuck at "diametrical pitch" and how to determine it. Long story short, I could not find the information that I needed (or if I did find it, I didn't understand it) so I went back to your video and saw that you used a diametrical pitch gauge to find it. My point is; your videos are very helpful and I am most appreciative that you make them.
vajake1 Without a pitch gauge, it can be kind of hard to figure out. You can do some math to calculate the diametrical pitch from the pitch diameter and the number of teeth, but you have to take some things into consideration....
Keith, you need to pick up a set of gunsmithing straight screwdrivers. I noticed you had the standard one. The gunsmithing one won't chew up the screws. Excellent videos. Am enjoying them and sent a couple to friends. Thank you.
Keith Rucker - VintageMachinery.org There so much kinder to the screw heads. I always wondered why guns never had chewed up screw heads until I found out about these babies. Good videos. Thank you.
Hello Keith, As always a very good video with good shots in different angles, and the end result is looking professional. But I was thinking about the hardening of the teeth and if it is necessary to harden them. Besides, my drill ( Bosch PBH 200 FRE ) has broken last week so I bought a new one but I was curious about what that had broken in it. Because of your video's I was more secure to open it and learned a lot from your video's how things work. It is more a drill hammer so there are lot's of gears but all looked fine, cleaned the anker and brushes. But than I noticed that the interference suppressor burned out and that part is about 5 euro so I can repair it very cheap. Most interesting of it where the gears and than in combination with your video's of making gears. Now I understand much more how they work because I've seen how they are made. Many thanx for the video and greetings from Roel.
RoelTyros So, some gears are indeed hardened, but others are not. In the case of this blower, I was able to cut everything with a file so I did not think that any of them were originally hardened. The pinion gears (the small ones) had the most wear and might have benefited from being a little harder, but I am sure that I did will hold up fine. Glad that the video helped and gave you the confidence to take the drill apart and try and fix it. Most new things made these days are engineered to fail at some point in time so you will buy a new one, which drives me crazy. But the good manufacturers (and I consider Bosch one of those) makes replacement parts available so you can keep it going.
I about gave myself a heart attack, Keith. At 22:00 minutes I saw you measure the gear with Calipers, but I had the sound muted because I was on the phone so I didn't hear you say you measured with a micrometer. lol
Keith, Nice work as always. Too mad I didn't know you were in the Bay Area. I live about 15 miles from Chuck's house. Maybe next time. Thanks for the video! Have a good one! Dave
Dave, No shop, just slowly setting up a lathe and mill in a small dark corner of the garage. right now I've got things piled on top of things, so much so I need to lose 50 lbs just to make it down the aisles. I'm in Hollister 95023 Jim
Jim . . . I live in San Mateo, so I am bit northwest of you. I don't have any machines but am saving up to get some. Since we own a condo, there isn't anyplace with 230v power to set up a shop here. I thought of renting a small shop, but at around $1.00/ sq. ft., that's out of the question. I'm retired, on social security and worked for companies without retirement programs. It was more fun to blow overtime $$$ on toys than save for retirement. Since my folks are gone and I inherited the house, I plan to build a shop next to the house so I don't have to run a 230v line too far. If you see any lathes that are in pretty good condition and don't cost a fortune, please let me know. Thanks. Dave
The Apprentice The extra weight of the horizontal mill along with the arbor with the outboard support sure does make a huge difference when it comes to a job like this. If this was a production job and I was making multiple's of the gear, I could easily hog out all of the material in one pass. I did it in multiple passes here simply so that I could measure things and sneak up on the right size!
Keith, another exceptionally well done video. Your editing skills are very impressive and that is what makes the episode flow so nicely. Of course, your expert commentary is the finishing touch. On another note, any news on the furnace project? Thanks, Rich
Rich206L Rich, with any luck, I hope to be able to pick up some more refractory next week while I am in Alabama on business. Once I have that, I should be able to get back on that project soon.
Press, Locktite, and a Key? No sympathy for the next guy who has to get it apart, eh? It would be nice to see this in action and get a look at the blacksmith shop - looking forward to seeing that. Thank you for your efforts.
GeoffreyThorpe123 seeing as it will last about 200 years! i think the next guy will 3d print it from his star trek replicator and not bat an eyelid, that or the apes who take over our civilization will be using bananas for everything and wont care what it is
GeoffreyThorpe123 I won't worry about that, I figure that I will be then next guy to work on it or they will just throw it in the trash. Not too many people who would take the time to fix something like this anymore.....
I thought the Loc-Tite was a bit of overkill as the gear was already a press fit with a keyway. Sure hope you never have to take them apart for any reason! Great series, and looking forward to final assembly.
HemiRod23 My motto is "if it is worth doing, it is worth overdoing" Overkill, maybe, but they should be held firmly in place! And I did use the reversible kind of loc-tite, just in case.....
You have amazing skills Sir! A UK fan who would love to visit your shop and museum one day... I wish i had your skills but i can just about hammer a nail lol... I love smithing and would love to see smithing videos. Are you a blacksmith there or is there a resident one. would love to see those as well. thank you. #
JRushPixel I have done some blacksmithing in my day, but not much of any over the past 25 years. I am hoping that the museum's blacksmith will be there!
Hi Keith. Very interesting series on the gear cutting. Looking forward to the assembly. I was wondering how the Vance matcher is doing. I've rewatched a lot of those videos and was wondering whether I missed something or if it's just on hold. As always, I'm looking forward to the next video :-) Michael
Gentlebear We should be back on the Vance project soon. Been waiting to get the tractor running that we will power it from and that is just about ready to go (finally!)
by adding a key way to the original design not only you improved the original design but also added more educational value to the video ....some may argue thats its overkill ....but i like over designing things another thing to notice is the factory that produced the mechanical blower probably thought about adding a key but never justified the cost and time to it...and that's probably how it ended up as a regular press in procedure thanks alot for your time and effort
I wanted to ask this question. What are the cutting tools made with? The tools cut through the iron and steel so easy. What machine makes the cutting tools? I like your videos I want a lathe in my shop so I can learn basic part making. Thank you for taking the time to film all the work you do.
I love your offerings and I have learned much. You spoke about building a play list. Have you figured out how to do that? If so you got any pointers. I have about 200 videos in five and ten segment installments and I would like to compile them.
Nik C. Colyer From your RUclips page, there should be a link (more like a tab) called "Playlist." Click on it and there is a link to create a new playlist. From there, you select the videos you want to include in your playlist and you are ready to go!
Truly gorgeous gears. Have you ever made a dividing head indexing plate? Seems like it would be a considerable amount of configuration and layout work.
John Strange Yes, I actually did make an index plate one time - about 25 years ago when I worked in the machine shop. We had a job for the dividing head and did not have the correct pate, so I made a complete plate with the whole series of holes. We basically calculated the angle on a 360 degree circle for each hole and then dialed it in on a rotary table to drill each hole. It was nerve racking. And, it was before we had a computer to do the math for us (very simple to calculate in Excel these days) - I did all of the math by hand and double checked each angle and then as I was dialing in the angles on the rotary table, I had another person in the shop double check each angle to make sure we got it right!
Thanks again Keith, I always wondered how gears were made. Quick question-how long did it take to cut a gear? How long for the entire project? You seem very patient, something I struggle with.
Ian Butler LOL - yeah, lots of factors on time - number of teeth, setup time, and if the camera is running or not! So, the first gear with 12 teeth took me about 4 hours to cut including setup and a lot of time fooling with the camera. Then the other two 12 tooth gears took about 20 min each. For the big gears, again, about three hours for the first one when I was talking and messing with the camera and then probably 45 min to an hour for the other two. Doing the RUclips thing really slows me down.....
Fantastic video! How many hours total did it take to machine these gears on the lathe & mill? I no machinist, but my bets guess is it took around 10 hours of machining time, NOT including set up, & calculating everything. Am I close?
Andy Coakes I should have some footage of that in the next episode. I hope to be able to get some action shots of the blower on Saturday at the museum!
Chuck Small Actually, I was using the kind used on threads as that is what I had handy. It was the reversible kind in case I ever do need to take it apart....
I am curious. In video 2 you had cut the blank for the third gear from the cast iron stock. You had commented that the fiber gear was to help reduce noise and vibration but you were going to use the cast iron gear. In this video you changed it to Delrin. Did you do it for the noise reason or were there other issues? Or did I miss someone else's discussion?
When you broached the keyway in the gear blank you didn't seem to make any careful measurements about the depth of cut as you did when cutting the key slot in the shaft, so how did you know that it would fit OK, especially since you couldn't push the gear on to try it for fit? Great videos.
Iain Crosbie The broach comes with a set of shims that when used is supposed to cut the key to the proper depth. I guess I have used them so many times and they always work, I just take it for granted now that it is cutting to the proper depth. They take the guess work out of it!
***** Not sure I follow what you mean by relationship. If you mean the number of teeth, that was determined for me as I was copying the originals. If you are talking about the profile of the tooth, that too was determined for me based on the cutter that I used - the profile of the involute curve changes slightly as you increase the diameter of the gear and the number of teeth, but this is engineered into the cutter that you use and as long as you are using the correct cutter for the number of teeth you are cutting, you don't have to worry about it.
Keith Rucker - VintageMachinery.org What I was referring to were the teeth.Do the teeth on the spur gear have to line up in some way with the teeth on the larger gear. Thanks' Keith
Oh dear lord Keith!. I had the Closed Caption turned on. Your southern accent is giving it fits. You simply have to watch a few portions of this video with the CC on, it'll drop you to your knees its so funny how it interprets what you say. Example at 24:35"... about replace when us we're going to use this hotel room a which had been looking and come from the research for the the strength for this material I thinks gonna play me strong enough for this final dear in a reason the use that the from noise reduction for this final gear in a reason the use that the from noise reduction the have that bad fastest turning here for a walk in the metal he had a something that would dampen the operation tumor in the blower....." It gets worse.......
Hey Keith, at first sorry for my bad english. I'll try to explain my question as best as possible for me ;-) The big gear you have cutted in this video was the only one on a shaft without a pinion gear. In some cases it is very urgent that the two or more Gears on one Shaft are in a defined position to each other. like in a transmussion, you have four or five gear pairs on two sharfs. If one gear is twisted a few degrees in relation to the other gears, the tooth will not fit to the gear on the other shaft. Have you any idea how to measure, the positions of the gears on the shaft?
42IsAnything To be honest with you, I would have to think about that for a while. A couple of ideas come to mind, but I am not sure how they would have been done at the factory.
Piers Lehmann I typically don't use lube when cutting cast iron. Several reasons, first being that the graphite in the cast iron is self lubricating. Also, it makes cleanup a lot easier as with cast iron you get more of a dust than a chip and this dust is really bad for the machines when it gets dissolved into oil and spread all over your machine surfaces. Much easier to clean up when it it is dry!
It seems to me like the plate on the dividing head should rotate and the plunger be fixed to the frame. That way is would be a lot easier to swap them out.
Doing it in one pass is possible but it puts a lot of tool pressure on everything. I was not in a hurry and decided to take it easy on my tools and equipment.
JC S Some time back, one of my viewers sent me an air powered jack that I use on the press now. So, yes, that is one of the best upgrades I have done in quite a while!
Excellent series. Also, thanks for showing the broaching and milling the key slots. I appreciate the details!!
stxrynn Thanks - this was indeed a fun project!
Not only a great job and ever educational, but just seeing your big smile of a satisfied craftsman at the end there nearly broke my face, I smiled so large! Thanks Keith!
I always enjoy your videos and always learn plenty too, and heck, I also almost always leave with a big grin, and I won't tarnish this fabulous feeling by trying to recall the extremely few that you've left us in a less than joyful state.
I really enjoy gearing and power transmission of almost all varieties, and so thanks again for that wonderful series. Aloha...Chuck.
Knolltop Farms Thank you Chuck - I was out your way last week and got to hook up with Chuck Bamarito (Outside Screwball) and Tom Lipton. Chuck lined up a little event on Saturday for all of us and a few other of the California bunch. I with I had thought about it earlier as I would have really liked to have got a chance to meet up with you as well. Oh well, maybe next time I get out to California....
You are welcome any time and I too would love to finally to add a palmshake ontop of our existing friendship. It's bound to happen one of these times, plus I'm sure Tom could only include so many on his tour so I cannot fault anyone for that ;)
Thanks for your kind message and I'll "see you" on your next video. Oh, and BTW, at the State Fair today in Sacramento there was a Blacksmith with a forge blower that I'd almost swear was the twin to the one you're repairing. Dad and I both shouted "There it is!", as he often watches your videos too...Aloha, Pops and Chuck
It's always fascinating to see the casual skill of an expert , making these things, thank you for posting .
welshpete12 Thank you!
This is becoming my FAVORITE series on RUclips, Keith! Can't wait to see this blower.....blowin!! lol Thanks buddy!
Brian Streufert Thank you Brian - this has been a fun project for me as well!
What a joy it is Keith to watch "old school" machining, that includes all the preparation including mathematics. Watching a CNC machining process is clinical, hidden, robotic, some would say "cold". Whereas old school is warm and human.
Rain Coast Thanks - I tend to agree with you on that!
Awsome work. I remember the suffering in the machine shop. Now I self inflict my own suffering. I broke the 40 year old bushog shaft for the second time,the verticle shaft. Machined and welded again. Going back to hogging oak branches again. I think of Keith as I turn on the lathe. How calm and smooth his work is, no destruction repair in his shop.
***** Believe me, I do plenty of destruction repair in my shop. At at the museum. And at work. Yeah, I do agriculture research for a living and we always have these things called "summer interns" - kids who have never been on a tractor that we are supposed to put to work. Lots of things to be fixed......
Another top-notch presentation ... I always look forward to your episodes.
I'd also love to see the blower in action at the forge.
carver3419 Hope to get some video of it in action on Saturday!
Keith, this has been an enjoyable video series. As always, thanks.
ShadeTree Machinist This was indeed a fun little series!
I tell you what Keith - one thing watching you do all these measurements and calculations has done is make me feel so *very* grateful I use metres, centimetres and millimetres!
+morelenmir What is funny is that I know that the metric system is so much easier, but for me, it is more difficult but only because I am so used to working with inches, feet, yards, and miles........
Keith Rucker - VintageMachinery.org I totally understand - and I was brought up just as things were changing over in Britain so I have some experience with both. I actually think the imperial system is much more organic. You almost know what an inch or a foot is without needing to measure it! By comparison the metric units feel very impersonal somehow, less easy to relate to. I think they are all based off the diameter of the earth of something like that?
In contrast you chaps always have had base-10 money whereas it was a real wrench to loose our proper money in the seventies. I still miss guineas, shillings and crowns!!! Modern coins and notes still look like play-money to me.
What a wonderful video! Great teacher!!!! Thanks Keith!
Just beautiful Keith.
Boy, you sure made it look easy. Can't wait to see how you are going to handle the bushing wear on the blower case. Tanks for sharing your craft with us.
jaime vega You need to go back and watch part 1 of this series: ruclips.net/video/9vk4S_zl3n8/видео.html. I reamed the original bearings out a bit oversized and then made the new pinion shafts slightly larger to fit the new holes.
What a dumb bell I am, I watched the first video and there was the answer to my question. Great job. Thanks.
Thanks. You made me go back to machine shop floor when I was in school. We learned to - among lots other things - to mill gears exactly like you did.
Outex Roberto Miglioli Thanks for the note. I wish that we could have had some machine shop classes when I was in school. I remember taking "Metals Technology" my freshman year in high school and the shop had three or four nice South Bend lathes that we were not allowed to even touch much less actually use. Too bad.... I can remember sneaking over there and playing with the controls when no one was looking - the first time I ever touched a metal lathe.....
Excellent work. Thank you for sharing. The fan is a must for the summer we're having in GA.
Robert Burkhardt I have seen worse summers, but there is sure plenty of hot and humidity to go around, that is for sure.....
i think this series is your best yet. this should be in everyones reference library. thanks keith
larry sperling Thanks Larry - I wish I could say that I planned to do this because it is what people want, but instead, it was just the next job that the museum threw at me!
Great work as always Keith - really enjoyed following along.
Cheers, John
Zone1242 Thanks John!
nice, thanks for walking us through that..
Paul Gdry No problem, my pleasure!
Great job, looking forward to the assembly and some blacksmith work.
one4stevo Coming up next!
Enjoy the videos you do good work Mr Rucker thanks for sharing.
wade hicks Thank you Wade for taking the time to watch and comment!
now I see why Spacly Sprockets is all ran by robots and George Jetson is always falling asleep. Kudos to you Sir, fascinating on many levels.
Hi Keith, very well done precise work on the shafts and gears. I enjoy watching you do the machine work, and like that you are explaining the steps as you go. I am in the process of repairing a old Oliver 510 drill grinder. Two shafts four woodruff key slots, and five new bearings so far. Thanks Kieth, Harvey from Nebraska
binks166 I am glad that you are enjoying the site! The old Oliver drill grinder sounds interesting - shoot me some photos of it when you get it finished!
Keith Rucker - VintageMachinery.org I will send you some pictures, the old beast is is looking rough but I think the heart is good,, Harvey
Always a pleasure to watch. These are the skills that made the west. Great job Keith.
Thanks Keith. I couldn't specify where in your series the information you imparted exceeded my previous awareness of how you guys accomplish seemingly impossible machining operations, but it was toward the front somewhere. Now it feels as if I always knew it. To me, that makes you a great teacher, and I thank you very much.
Lee Humes Thanks Lee - I know the feeling you are talking about. Yesterday, I found an old black and white movie on RUclips made by the Hamilton Watch Company where they did a great job explaining how the mechanical mechanism in a watch works. They greatly simplified it, discussed some of the problems that had to be overcome, and put it all together in a way that made it "click". Makes me appreciate my pocket watches even more.....
Very nice, I bet that blower well work better than it did when it was new. Look forward to seeing it up and running. Thank you for the great videos.
Great North Woods Hillbilly Not sure about when it was new, but it was working pretty good the other week when I got it back together and in the blacksmith shop. Going to be at the museum on Saturday and get an update on how it is holding up.
Very nice work Keith, thanks for sharing!
Something cool about cutting gears. I've never seen black Delrin good to know its available. That blower ought to be good for another hundred years.
Eric Corse Thanks - this repair should out live me (I hope anyway...)
Great job of gear cutting. Thanks for the video.
cerberus Thank you!
Thanks for posting Keith. My shop teacher had a Brown and Sharpe dividing head, but we never got to see it in action. Always been been fascinated how gear teeth are shaped so they slide into mesh with one another. Thanks for the research on the need for the plastic gear. Learning a lot watching your videos.
As always, enjoyed the video and your repartee!
Joe Rogers Thanks Joe - having the time of my life playing in the shop and letting you guys watch over my shoulder!
Amazing series. Thank you so much for all of your videos
Love your Video's. Even though english isn't my home language it's so easy for me to follow and understand. Learned so much already. You're a great Teacher !
+Mirko Mueller Thank you so much!
Can't wait to see it all go back together
Bernard Carter Coming real soon!
I can't wait i have really enjoyed the series. Thanks
keith great part 4. ready for assembly.
Robert Kutz Truth be known, I am ahead of you guys as it is together and being used.... Still need to shoot some video of the blower being used and edit that final video. Coming soon!
Thanks Keith, Looking forward on learning some of you blacksmith skills. The way the world is going just might have to go back to that type of life. Have a great day....
Randall Moore While I have done a good bit of blacksmithing back in my younger days, I have not done hardly any in recent years. I am hoping that the museums blacksmith will be there when I show up with the video camera!
Thanks for showing the dividing-head setup. I am relieved to see that the stops can move relative to each other. I had been puzzling over how other ratios could be achieved with a fixed 120' angle... ha ha... I feel stupid now.
***** No need to feel stupid - just keep on learning......
Excellent series. I look forward to the assembly video.
russtuff Coming soon.....
Great series.
Thanks Keith, I never saw that done. Learned a lot!
Thanks for sharing yet another great video. Can't wait to see it all together and running. Thanks again.
Duncan Mac We will get that last video edited and posted soon!
You're a good teacher. I learn many things from you.
Thank you.
My goal is make gears like that. Thanks for taking the time to show how it should be done. Great video work.
Absolutely fascinating!! Thank you very much Keith. Keep them coming if you can.
Thanks - will do!
Hi Keith, thank you for your nice videos.
I noticed that you measured the 50 teeth gear with two pins, not perfect opposite side but 24 teeth by 26 teeth :-P
Anyway, I love so much your video and I always pause the picuture many times to taste every scenes. It is very much educational for me. Thank you very much.
He said he was just showing the principle for the video - having properly measured it with a mic - presumably that time, he had the pins properly opposite !
Great series Keith! Nice camera work as usual getting us some close up shots. Looking forward to seeing the blower all assembled and in the blacksmith shop...
turbocobra Thanks - I shot some video yesterday of the blacksmith at work at the museum using the blower. I will get that and the rest of the final video edited up this week and posted soon.
Hello Keith, I am amazed at how much knowledge you have! You are a regular Ben Franklin! All the best, Edgar
I am amaze in how gears are made. I am trying to learn how to gears myself. nice job!
Thank you!
Very nice job of explaining Keith !!
Keep em coming,
Your friend, Cliff
Clifford Fender Thanks Cliff!
Hi Keith. I enjoy your videos greatly as they show some very good engineering techniques and applications. I especially like woodruff keys and when people ask my last name i always say it is woodruff as in the woodruff key. not many people understand it but i think it is quite cool. i would like to get more into milling and cutting keyways. i seem to have ended up with 4 lathes but as of yet no milling machines. i especially like to older machines and i am on the look out for older milling machines for the right price.
thank you for your great videos.
Nathan
Nathan Woodruff I know a couple of Woodruff's around here - I wonder if they even know what a Woodruff key is? Glad that you enjoy the videos! I hope you can find a mill to add to those lathes soon.....
Enjoyed Keith , Thanks again !!
ShawnMrFixit Lee Thanks Shawn!
Awesome as usual!!
dixonqwerty Thank you - as I have said several times, this was a fun little project!
enjoy watching, nice job!
Joe Donohue Thanks!
Great video Keith. I remember as a kid many years ago, a few of my friends and I came across an old barn that had one of those blowers and a giant bellows. We were blowing dust and chaff all over that barn. The bellows was so big, it took two of us to raise the handle up, then one kid would jump on top to expel the air. I foolishly placed my hand if front of the nozzle and my hand was immediately stuck with needle like projectiles from the chaff, similar to a porcupine strike. try explaining that when you got home. Ah the good old days.
Kenneth Bartlett Yes, that brings back some memories of some of the stuff I used to get into when I was a kid myself....
Having the ability to make gears like this sure opens up what you will be able to repair! Nice job.
P.S. I thought that keyway broach was going to snap off at 9:30. I guess it'd be best to ease off the pressure mid stroke to allow it to line up with the press again.
Jack Hoying Yes indeed Jack. I was cringing when I saw that too. Thankfully it made it through the process OK.
Jack Hoying I was watching it pretty close and I think that the angle of the camera made it look worse than it was. I was kind of cringing myself when I saw it in video and I know that I was watching it close in real time.....
In that style of gear train there is no timing of the gears.
Good looking finish on that set of gears.
Well done.
Rick Brandt Correct, no timing of these gears. When you get into something like a transmission, things start getting a lot more complicated......
You all must have popeye out there turning that thing if he can slip a press fit gear with a foot long hand crank!! Still fun to watch you do the cuts and broaching. It is terrible hot and humid here, glad I don't have to stand next to a fire and crank that thing myself!!
bcbloc02 I am sure the press fit gear would have held up just fine - the originals did for the past 100 years. But a key will make sure that they don't slip! I don't want to have to ever go back into this thing..... Hot and humid it is here as well. Yesterday morning, I was at the museum and was soaking wet from sweat by 9:00 in the morning when I had to run to town. I got in the truck and the thermometer only read 78 degrees - but the humidity was so high that we were all soaked! By the afternoon, it was 95 degrees and it was getting pretty miserable. So miserable in fact, that I packed up and went to the house as I was working on something on the bench that I could do in my shop at the house and at least there I have a window AC unit to knock the temp down a few degrees! It was really fun when I was up on the steam locomotive around 12:00 for about 45 minuets - sitting next to the boiler in the cab of the engine was "really fun".
...Nice work, love your explanations as well. ....fyi.....camera and audio is working great!
Rick L Thank you Rick - my pleasure!
looking forward to this one enjoyed the ones before
Very interesting. Just love those gears, hopefully I will be able to do gears one day....
+Arnljot Seem It is nice to be able to do them when you need to. I have another gear project coming up soon.
Great series indeed! I love watching all these informative video series from you, Keith Fenner, Jody, Abom etc. One do learn quite a lot.
By the way, I did notice you nicked the corner on one of the gears ;)
Keep up the great work!
larsmark You are observant! Yes, I did nick one of the teeth when I did not pull the gear out far enough before rotating it to the next tooth. It barely touched the corner and will not matter, but it sill made me mad....
Keith Rucker - VintageMachinery.org Haha, yes I would have reacted the same way but as you said, does not matter but always frustrating anyway.
Quick tip for checking if a blade is touching... Apply a thin coat of oil-based paint to a flat surface, and roll the blank on it. Then you can manually rotate the blade/etc and it will "scratch" the paint on the blank, without digging in. Shouldn't be an issue for larger gears like this, but if you start working with smaller parts, those tiny fractions where the blade is actually cutting into the blank can throw your calculations off.
muy bien amigo,un buen profesional con buenas herramientas, no tiene limites un cordial saludo.
At 1:37, that looks to be a nice big cup of sweet tea... ah, Summer in south Georgia... ;)
Sean Harrington Ahhh, Sweet Tea - the nectar of the Gods..... Been so hot and humid lately that without some kind of big glass of something liquid, it is hard to stay in the shop. The heat index this past Saturday was 108 degrees.... I had to call it quits shortly after lunch....
Hey Keith. I tried doing a little gear making exercise on paper using my "Machinery's Handbook 24th edition" that I keep on my desk.. I got stuck at "diametrical pitch" and how to determine it. Long story short, I could not find the information that I needed (or if I did find it, I didn't understand it) so I went back to your video and saw that you used a diametrical pitch gauge to find it. My point is; your videos are very helpful and I am most appreciative that you make them.
vajake1 Without a pitch gauge, it can be kind of hard to figure out. You can do some math to calculate the diametrical pitch from the pitch diameter and the number of teeth, but you have to take some things into consideration....
Keith Rucker - VintageMachinery.org Thank you sir! I'd like to give gear cutting a try for real some day!
Keith, you need to pick up a set of gunsmithing straight screwdrivers. I noticed you had the standard one. The gunsmithing one won't chew up the screws. Excellent videos. Am enjoying them and sent a couple to friends. Thank you.
+Alex Tworkowski I have a set of small sizes at home but not the larger sizes.
Keith Rucker - VintageMachinery.org There so much kinder to the screw heads. I always wondered why guns never had chewed up screw heads until I found out about these babies. Good videos. Thank you.
Hello Keith,
As always a very good video with good shots in different angles, and the end result is looking professional. But I was thinking about the hardening of the teeth and if it is necessary to harden them.
Besides, my drill ( Bosch PBH 200 FRE ) has broken last week so I bought a new one but I was curious about what that had broken in it. Because of your video's I was more secure to open it and learned a lot from your video's how things work.
It is more a drill hammer so there are lot's of gears but all looked fine, cleaned the anker and brushes. But than I noticed that the interference suppressor burned out and that part is about 5 euro so I can repair it very cheap.
Most interesting of it where the gears and than in combination with your video's of making gears. Now I understand much more how they work because I've seen how they are made.
Many thanx for the video and greetings from Roel.
RoelTyros So, some gears are indeed hardened, but others are not. In the case of this blower, I was able to cut everything with a file so I did not think that any of them were originally hardened. The pinion gears (the small ones) had the most wear and might have benefited from being a little harder, but I am sure that I did will hold up fine. Glad that the video helped and gave you the confidence to take the drill apart and try and fix it. Most new things made these days are engineered to fail at some point in time so you will buy a new one, which drives me crazy. But the good manufacturers (and I consider Bosch one of those) makes replacement parts available so you can keep it going.
Hi Keith, nice video. We here a swear in fast forward at 23:20 don't we :D?
Cheers,
Stephan
Stephan W I noticed that - looked like a slight collision on one tooth.
I about gave myself a heart attack, Keith. At 22:00 minutes I saw you measure the gear with Calipers, but I had the sound muted because I was on the phone so I didn't hear you say you measured with a micrometer. lol
Great job! I would love to see how you cut the bevel gears. TY
cant wait for the 5th vid👍👍👍👍
Integra DIY Coming Soon.....
Keith,
Nice work as always. Too mad I didn't know you were in the Bay Area. I live about 15 miles from Chuck's house. Maybe next time. Thanks for the video!
Have a good one!
Dave
Swarf Rat I would have liked to visit with him as well, just down the road south of chuck's place,
Jim
Jim . . . Do you have a shop or you a "closet machinist" like myself? Perhaps we can meet up some time. Dave
Dave,
No shop, just slowly setting up a lathe and mill in a small dark corner of the garage. right now I've got things piled on top of things, so much so I need to lose 50 lbs just to make it down the aisles.
I'm in Hollister 95023
Jim
Jim . . . I live in San Mateo, so I am bit northwest of you. I don't have any machines but am saving up to get some. Since we own a condo, there isn't anyplace with 230v power to set up a shop here. I thought of renting a small shop, but at around $1.00/ sq. ft., that's out of the question. I'm retired, on social security and worked for companies without retirement programs. It was more fun to blow overtime $$$ on toys than save for retirement. Since my folks are gone and I inherited the house, I plan to build a shop next to the house so I don't have to run a 230v line too far. If you see any lathes that are in pretty good condition and don't cost a fortune, please let me know. Thanks. Dave
Let's take this off Keith's channel. email me at jtecalo@gmail.com.
Jim
very nice series Keith. I have tried cutting some gears in my vertical mill the vibration was woeful really wish I had a horizontal mill .
The Apprentice The extra weight of the horizontal mill along with the arbor with the outboard support sure does make a huge difference when it comes to a job like this. If this was a production job and I was making multiple's of the gear, I could easily hog out all of the material in one pass. I did it in multiple passes here simply so that I could measure things and sneak up on the right size!
Keith, another exceptionally well done video. Your editing skills are very impressive and that is what makes the episode flow so nicely. Of course, your expert commentary is the finishing touch. On another note, any news on the furnace project?
Thanks,
Rich
Rich206L Rich, with any luck, I hope to be able to pick up some more refractory next week while I am in Alabama on business. Once I have that, I should be able to get back on that project soon.
Press, Locktite, and a Key? No sympathy for the next guy who has to get it apart, eh?
It would be nice to see this in action and get a look at the blacksmith shop - looking forward to seeing that.
Thank you for your efforts.
GeoffreyThorpe123 seeing as it will last about 200 years! i think the next guy will 3d print it from his star trek replicator and not bat an eyelid, that or the apes who take over our civilization will be using bananas for everything and wont care what it is
GeoffreyThorpe123 I won't worry about that, I figure that I will be then next guy to work on it or they will just throw it in the trash. Not too many people who would take the time to fix something like this anymore.....
you need a gear cutting machine tool. but, i like the way you work.
Painting your part with machinist blue makes your touch off a lot easier.
I thought the Loc-Tite was a bit of overkill as the gear was already a press fit with a keyway. Sure hope you never have to take them apart for any reason! Great series, and looking forward to final assembly.
HemiRod23 My motto is "if it is worth doing, it is worth overdoing" Overkill, maybe, but they should be held firmly in place! And I did use the reversible kind of loc-tite, just in case.....
Good job Keith regards alan :)
alan mcclusky Thank you Alan - for taking the time to watch and comment!
my pleasure take care regards alan.
You have amazing skills Sir!
A UK fan who would love to visit your shop and museum one day... I wish i had your skills but i can just about hammer a nail lol... I love smithing and would love to see smithing videos. Are you a blacksmith there or is there a resident one. would love to see those as well.
thank you.
#
JRushPixel I have done some blacksmithing in my day, but not much of any over the past 25 years. I am hoping that the museum's blacksmith will be there!
Hi Keith. Very interesting series on the gear cutting. Looking forward to the assembly. I was wondering how the Vance matcher is doing. I've rewatched a lot of those videos and was wondering whether I missed something or if it's just on hold. As always, I'm looking forward to the next video :-) Michael
Gentlebear We should be back on the Vance project soon. Been waiting to get the tractor running that we will power it from and that is just about ready to go (finally!)
by adding a key way to the original design not only you improved the original design but also added more educational value to the video ....some may argue thats its overkill ....but i like over designing things
another thing to notice is the factory that produced the mechanical blower probably thought about adding a key but never justified the cost and time to it...and that's probably how it ended up as a regular press in procedure
thanks alot for your time and effort
+Faisal Abdulaziz My motto is that "if it is worth doing, it is worth overdoing!"
Keith Rucker - VintageMachinery.org
hehehehe sounds like the business
I wanted to ask this question. What are the cutting tools made with? The tools cut through the iron and steel so easy. What machine makes the cutting tools? I like your videos I want a lathe in my shop so I can learn basic part making. Thank you for taking the time to film all the work you do.
Alpha1545 The cutters are made of high speed steel (HSS), the same as end mills and basic lathe cutters.
I love your offerings and I have learned much. You spoke about building a play list. Have you figured out how to do that? If so you got any pointers. I have about 200 videos in five and ten segment installments and I would like to compile them.
Nik C. Colyer From your RUclips page, there should be a link (more like a tab) called "Playlist." Click on it and there is a link to create a new playlist. From there, you select the videos you want to include in your playlist and you are ready to go!
Keith Rucker - VintageMachinery.org Thanks Keith. It was easy once I knew where to go.
Truly gorgeous gears. Have you ever made a dividing head indexing plate? Seems like it would be a considerable amount of configuration and layout work.
John Strange Yes, I actually did make an index plate one time - about 25 years ago when I worked in the machine shop. We had a job for the dividing head and did not have the correct pate, so I made a complete plate with the whole series of holes. We basically calculated the angle on a 360 degree circle for each hole and then dialed it in on a rotary table to drill each hole. It was nerve racking. And, it was before we had a computer to do the math for us (very simple to calculate in Excel these days) - I did all of the math by hand and double checked each angle and then as I was dialing in the angles on the rotary table, I had another person in the shop double check each angle to make sure we got it right!
Keith Rucker - VintageMachinery.org Thank you for sharing the valuable insight of that memory.
Small question: for a 16/20 rotation, why do you need 20 holes? Couldn't you do 12/15 or 24/30? I mean if you had them?
Thanks again Keith, I always wondered how gears were made.
Quick question-how long did it take to cut a gear? How long for the entire project? You seem very patient, something I struggle with.
Ian Butler LOL - yeah, lots of factors on time - number of teeth, setup time, and if the camera is running or not! So, the first gear with 12 teeth took me about 4 hours to cut including setup and a lot of time fooling with the camera. Then the other two 12 tooth gears took about 20 min each. For the big gears, again, about three hours for the first one when I was talking and messing with the camera and then probably 45 min to an hour for the other two. Doing the RUclips thing really slows me down.....
Fantastic video!
How many hours total did it take to machine these gears on the lathe & mill? I no machinist, but my bets guess is it took around 10 hours of machining time, NOT including set up, & calculating everything. Am I close?
Woodruff key, press fit and Loctite! Bit of overkill for a hand cranked fan dont'cha think?
excellent job keith are we going to see the blower running
Andy Coakes I should have some footage of that in the next episode. I hope to be able to get some action shots of the blower on Saturday at the museum!
fantastic pardon the pun lol
Good video as always. i was wondering what was the number of the loctite you were using ? Thank's again.
Chuck Small Actually, I was using the kind used on threads as that is what I had handy. It was the reversible kind in case I ever do need to take it apart....
Out of curiosity what feed and speeds are you using when you are cutting the gears?ThanksJoe
I am curious. In video 2 you had cut the blank for the third gear from the cast iron stock. You had commented that the fiber gear was to help reduce noise and vibration but you were going to use the cast iron gear. In this video you changed it to Delrin. Did you do it for the noise reason or were there other issues? Or did I miss someone else's discussion?
+Larry Lawson I thought I discussed it in one of the episodes, but yes, I did do it for noise reduction.
When you broached the keyway in the gear blank you didn't seem to make any careful measurements about the depth of cut as you did when cutting the key slot in the shaft, so how did you know that it would fit OK, especially since you couldn't push the gear on to try it for fit? Great videos.
Iain Crosbie The broach comes with a set of shims that when used is supposed to cut the key to the proper depth. I guess I have used them so many times and they always work, I just take it for granted now that it is cutting to the proper depth. They take the guess work out of it!
Keith, Is there a relationship between the teeth on the pinion and the larger gear ? If so,how did you establish that before cutting the larger gear ?
***** Not sure I follow what you mean by relationship. If you mean the number of teeth, that was determined for me as I was copying the originals. If you are talking about the profile of the tooth, that too was determined for me based on the cutter that I used - the profile of the involute curve changes slightly as you increase the diameter of the gear and the number of teeth, but this is engineered into the cutter that you use and as long as you are using the correct cutter for the number of teeth you are cutting, you don't have to worry about it.
Keith Rucker - VintageMachinery.org What I was referring to were the teeth.Do the teeth on the spur gear have to line up in some way with the teeth on the larger gear. Thanks' Keith
Oh dear lord Keith!. I had the Closed Caption turned on. Your southern accent is giving it fits. You simply have to watch a few portions of this video with the CC on, it'll drop you to your knees its so funny how it interprets what you say.
Example at 24:35"... about replace when us we're going to use this hotel room a which had been looking and come from the research for the the strength for this material I thinks gonna play me strong enough for this final dear in a reason the use that the from noise reduction for this final gear in a reason the use that the from noise reduction the have that bad fastest turning here for a walk in the metal he had a something that would dampen the operation tumor in the blower....."
It gets worse.......
Yeah, RUclips is even worse than Siri when it comes to translating speech....
Hey Keith, at first sorry for my bad english. I'll try to explain my question as best as possible for me ;-)
The big gear you have cutted in this video was the only one on a shaft without a pinion gear. In some cases it is very urgent that the two or more Gears on one Shaft are in a defined position to each other. like in a transmussion, you have four or five gear pairs on two sharfs. If one gear is twisted a few degrees in relation to the other gears, the tooth will not fit to the gear on the other shaft.
Have you any idea how to measure, the positions of the gears on the shaft?
42IsAnything To be honest with you, I would have to think about that for a while. A couple of ideas come to mind, but I am not sure how they would have been done at the factory.
thanks again...quick Q... how come no lube for the gear cutting?
P
Piers Lehmann I typically don't use lube when cutting cast iron. Several reasons, first being that the graphite in the cast iron is self lubricating. Also, it makes cleanup a lot easier as with cast iron you get more of a dust than a chip and this dust is really bad for the machines when it gets dissolved into oil and spread all over your machine surfaces. Much easier to clean up when it it is dry!
It seems to me like the plate on the dividing head should rotate and the plunger be fixed to the frame. That way is would be a lot easier to swap them out.
ElectricGears Not sure about that - never seen a dividing head set up that way.
I might have missed it but why did you cut the gears in two runs instead of one? Thanks, Edgar
Doing it in one pass is possible but it puts a lot of tool pressure on everything. I was not in a hurry and decided to take it easy on my tools and equipment.
Keith, do you have a air powered press now?
JC S Some time back, one of my viewers sent me an air powered jack that I use on the press now. So, yes, that is one of the best upgrades I have done in quite a while!
Keith Rucker - VintageMachinery.org Cool! It went right thru that broach like butter.
What kind of oil do you use for cutting key ways .