Metal Planer Restoration 36: Cutting Spur Gears on a Horizontal Milling Machine with a Dividing Head
HTML-код
- Опубликовано: 18 июн 2020
- Cutting some gear teeth on my Kearney & Trecker Model 2H Horizontal Milling Machine using a K&T Model H Dividing Head and Involute Gear Cutters. I am making two gears to replace ones with broken teeth for my circa 1890 New Haven Mfg. Co. Metal Planer restoration.
Support VintageMachinery.org on Patreon:
/ vintagemachinery
Make a one time donation to VintageMachinery via PayPal:
www.paypal.me/VintageMachinery
Please Visit: www.vintagemachinery.org
Sponsored by:
American Rotary Phase Converters
www.americanrotary.com/?sld=k...
Use checkout code "Vintage10" for a 10% discount on all AD, ADX and AI converters!
There is something so satisfying about watching those gear teeth form up.
I bought a Steinel S4 horizontal mill mainly for cutting gears and keyways. Now I need a dividing head. The dreaded purple thumbnail! LOL Thanks for this video.
Keith, Nice job on the gears for your planer, thanks for sharing your video.!.!.!.
After about 3 years you're getting so close to making chips with this great old machine. I'm always happy to see another video from you.
Beautiful job, Keith!
As if they aren't already good enough, Keith's videos always come with comments that are a master class in machining all by themselves. So many ordinary guys with so much valuable knowledge that they are happy to share with rest of us. Y'all helped build this country I love, and I'm truly grateful.
Those gears will outlast EVERYONE watching this! Nice work Keith!
should might be the more appropriate word, as with life stuff happens, they could be dropped or when they are in place and working an object could get between them or something could go wrong and bust a tooth. so in normal use they should last a long time.
@@ROTTK9 Following those parameters NOTHING will last....let alone cast iron gears.
Thanks for sharing your vast knowledge. Stay safe and well.
22:04 - Final product = poetry in solid form. So nice. The original teeth look worn, to say the least. 125 years?? Yeah, let's see anything current last that long. Always a pleasure to watch someone doing it right. Thank you.
You are a teacher, you are máter, metal player .
Seeing a blank being turned into a productive member of society is always cool, especially when it comes to gears being formed.
Love your explanation as to why you had stayed with cast iron! Put your critic in his place. Great video Keith!
I can't wait for the bevel gear cutting video. Great content as always.
Always happy to see a new video from your channel
That must be a great feeling when that last tooth is cut and it's exactly where it should be! I could watch this all day long and not tire of seeing it. Imagine the minds that worked out how those dividing head plates should be drilled and set up to produce those gears it's just mind boggling to me. Great video as always Kieth ;-)
I was thinking the same thing when he showed the the dividing head plates.
Dave Sleaman, Keith did a video a long time ago (like five or six years) where he showed the math and drilled a set of dividing head plates. He was making the plates that he was missing to make a complete set and it seemed like a couple weeks after he made all those plates, someone, i think, sent him an original set! It was an interesting video!
Keith sure does cut the purtiest teeth! :) Great video, satisfying to watch a traditional manual method of gear cutting.
Planner is getting close!
Now that I have a horizontal mill gear cutting is more plausible. I don't have any gear projects planed yet but they will be coming. Thank you for sharing.
Always a thumbs up. Thanks for sharing Keith
Loving the channel binge watching I adore old workshops and or equipment I mean if gear lasted over a hundred years of use and they got broken teeth simply because of a unfamiliarity of construction or seizing in this case you have to be impressed and why change a good thing! If it’s not broke don’t touch it. But if it’s out of square just you watch out come the 🛠.
Getting closer to finishing. Always informative and fun to watch.
Spur gear cutting is a very satisfying thing for me to do. I'll try climb cutting like you did the next time I need to cut a gear. Thanks for your videos.
Great video! Thanks for sharing!:)
Cast iron is a great material for gears. It machines great, it’s a little harder than annealed steel, it will lap itself in, it’s as strong as annealed steel, it’s slightly self-lubricating, and doesn’t ring like steel does.
Great choice and great video, Keith.
Thanks,
John
Looking forward to the beveled gear episode, too.
Thanks, Keith!
Of course, This Old Tony has two great videos explaining the first few minutes of this in detail.
Good job,now they will last 100 years!
Thanks for another great video. I sure enjoy watching you make all the cool things that you make. And I enjoy your precision and your desire to do things the right way! Again thanks
A great, detailed explanation of cutting gears. One more step in the rebuild
Keith another great video on gear cutting,please keep up these mid week videos!
Cast iron sure does machine nice!
Good show Keith. Thank you for sharing this with us. May Jesus bless you and yours always kind Sir.
Hi, well done and thanks for sharing your video on those very well made gears
I always enjoy watching you make complex parts like gears!
Hi it’s Stacie! I absolutely love watching gear teeth get made! They turned out so awesome! I also love the fact that the machine was in good shape! Just love this video!
I recall being taught to make two cuts 180 degrees apart on even tooth gears or three cuts on odd tooth gears, measure those and cut deeper if necessary. Once the cutting depth is correct, make the remaining cuts.
Yes,I've used the two opposing teeth and then measure with gauge pins method to establish final cut depth. It works well.
Great video, Keith! Not much information on RUclips about measuring proper depth with gauge pins, so that part was very useful.
THANK YOU...for sharing. Enjoyed.
just found your channel , thanks for sharing
Does the handbook include the pin measurement for odd vs even gears? Because on a odd tooth gear, you would be measuring at an angle across the gear, not straight across.
Wondered the same thing...
The cast iron teeth will also break before something else down the line that's much more complicated to fabricate, breaks. It's a level of protection, though probably not intended in the original design. You hope a belt slips first, or if there's a shear bolt/key, but if it gets this far it will get no further.
This is the exact thing I was thinking of. A sheer bolt in the proper place can save a gear box.
Cast iron is a wonderfully forgiving material that is often overlooked by many engineers. I use extruded cast iron for bearings instead of bronze. Having free graphite the cast iron has exceptional wearing qualities. Thank you and good luck with the planer restoration. Stuart Dixon.
And if they break again then he can just make more.
Yes, no doubt machines of that nature can be misused (excessive cutting depth, wrong speed, etc). The problems taking it apart certainly added to the issue. I think remaking them was a fantastic tribute to a very useful tool. Those parts had paid the price. Wonder how many parts THEY made BEFORE they busted. Lots. :-D Cast iron, shmast iron.
This kind of foresight is what seperates good engineers form excelent engineers. Putting effort into making sure that your product is breaking in a way that is easily repairable is a thing that is very much missing in todays engineering.
Always good when you get round the gear and have a full tooth at the end.
Nice job Keith
Thanks Keith, I learn so much from you guys in the Ytube machine shops!!!!
Good gears
Very nice
Great detail in videos!
I think this is your best produced video ever.
I would love to know what camera/lighting he uses, it's very high res and nice and bright.
They turned out very beautiful. Well done. Thank you for sharing.
Great job! Gears are so much fun to make 😊. I've only ever made a couple but so satisfying 😁. Thanks for sharing! Cheers!
Great video of making gears in a horizontal mill that is what I have so appreciate it
Another great job, Keith
Great video Keith. I was really interested to see how that dividing head works.I had no idea how gears were made and now I know.
Nice job. Thanks for making the video. A couple weeks ago, I cut a couple change gears for a FB users South Bend 9” lathe, 18 DP, 26 and 28 teeth. Satisfying work. Stay healthy.
Note - on prev comment, mic reading is perfectly legible. Just not razor sharp like the rest of the video. Outstanding production quality as always.
Never saw this work done before, so found it very interesting.
Great to see this process, and I enjoy hearing your comments about the materials.
That Is A good job
Thanks for sharing you’re a very talented machinist!
Thank Keith. I must admit I wondered why you'd chosen to use cast iron instead of steel - your explanation convinced me you were right!
The "malleable" iron Keith cut the new gears on is less brittle than the OEM "gray" iron. Come back in 150 years and the replacement gears will be going strong. ;>)
Cool, very informative
Great content Keith.
Nice work, I agree with your decision to use cast iron.
This will last for many years with proper use and maintenance.
Thanks again, Ed M.
Especially, Dura-Bar. It is a premium ductile product!
Perfect camera angles on the measuring. Slightly closer and steadier on the mic barrel would be lovely. It's been eons since I've used mine. Bet you've got a video on using one.
Great job good video.
Like the wrench you have on the lock of your dividing head.. Going to have to dig through my square wrenches and see if I have one to fit my model H dividing head... Cheers; Mike in Louisiana
Nice job Keith, and you're quite correct. Cast iron is a good material to use, 125 years, proves it.
18:55 - crystal clear reading. Poifect.
Dividing Heads are one of my favourite kind of engineering p*rn.
You have more patients thany anyone I know. Or have ever heard of.
Nice job Keith, That first 10x looked you had converted the old girl to CNC. Good tips and info...
The math on the dividing head: a full circle = 40 full turns on the dial. So, each turn gives you 1/40th of a circle. The plate has 19 pins, each pin thus further dividing everything into 19 parts. So 1 pin forward means a division by 40*19 or 1/760 of a full circle. A full circle is thus 760 pins forward. We want 19 divisions, so if we progress 40 pins, after 19 times 40 pins we are at 760 pins = full circle. 40 pins on the 19-pin plate = full turn + full turn + 2 pins, or 19 + 19 + 2.
The plate holes are a fractional division of the primary ratio. I must admit I cheat on this process and just use a quick reference table I have that covers all my dividing plates and what divisions are achievable. Lazy but quick and convenient.
Wow that was easier then i though ! good process i bet it took a long time too figure out then to make! Nice always a goos job thanks Keith!👍
Good video, also great camera control..,.
Excellent job as always Keith. just goes to prove you don't need 50 yrs experience as a 'tool' maker to get good results , pleased in a way it's a 2 part video on these gears as the first one opened up a can of worms with comments and advice, one being far to critical on the way you do things in your own workshop.
Haha, just looking through the comments to see if I could find him complaining about something else
@@thonnogeengineering7745 Now I have been made aware of the troll I have seen he/she/it, on other RUclipsrs channels , and has now started trolling me when I leave a comment, I wasn't aware that I had such a magnetic personality .
I love the "I broke those teeth." defense.
Hiya Keith
Lovely gears, remaking using the original materials on these beautiful old machines just feels right. Yes there may be better materials but this is the way they were made. This is 100+ years old and still going how many machines with modern materials are still going let alone worth a rebuild
Better to have an easy to replace part break than an expensive one.
Always great videos the amount of times i needed a gear and given up...if only machining time was cheap and/or more people shared there equipment/knowledge.
Great job Keith. Ok its me and tiny bit ocd i see the hold down bolts and weak washers holding dividing head and foot stock. On that size bolt wouldn't 1/4" thick washers be better to use. Even non hardened steel be ok. I dont know why i automatically see things like that. I probably would have just put a couple on myself but mishapened like that hollars at me. Not critical i know . I do love gear cutting n spiral helical gears . Its a world of its own and needed so much. I need to make a few 10 pitch 14 1/2 degree 32 tooth for the table and head raising gearboxes of my 20inch rockwell delta drill press with power feed. Not sure ill be able to since my spine pain put me in bed to stay it seems. What a press to own n restore beautiful to me. Thanks for your videos they help to fill my void.
Yes, I agree with you on the T bolt and washer combo to hold down vices and dividing heads, using thin hardware store washers that bend and wallow out the surfaces that they seat on is not a workman like thing to do.
Another advantage CI gears have over steel is the self-lubricating properties because of the free carbon.
An involute gear's shape is a pretty sight. I had never seen one actually made. Thank you! 125 years is pretty good, IMHO. I don't think I personally will last that long. 76 and counting.
Remember, this is an approximation of the involute tooth. To get a true involute tooth it needs to be either hobbed or shaped on a gear shaper. Search in RUclips for 'gear hobbing', as there are some quite decent videos of the process.
I just realized I was no longer getting American Rotary adds in front of all YT videos. I’ve watched a few of Keith’s videos again recently. I wonder if I’m going to get 3 phase inverter adds again.
Don't forget also people, cast iron gears act as a "safety" as well. If the machine has a crash the inexpensive cast teeth/gears will fail versus An important or expensive part of the machine, like a shaft for instance. If steel teeth have no give, something's gotta give! If used properly, the cast gears will last the life of the machine
What's the plan for deburring those gears? Quick hand file? Leave it be? Vibratory tumbler?
And don’t forget reason #3: cast iron is easy to machine and doesn’t require cutting oil/lubricant! 😎
Morning Keith
The Moment of Truth: when you cut that last tooth and it's symmetric to the ones on the left and the right.
There is another benefit cast-iron. If you are using steel gears & something goes wrong something more expensive than just a simple gear is going to break! With a cast-iron gear you just have to replace 1 little gear.
A cast iron gear can be a good thing !
Like the soft pin coupling in sum lead screws .
With all that kinetic energy flying around if it all locks up you just brake a gear or pin with the lead screw .
Nice
If they do another 125 yrs they will be doing just fine...great machining..certainly a dying art...
All geared up now.
Need to invest in a thermal imaging camera, would love to see how heat builds up during milling and grinding operations. You and Abom need FliR sponsorship.
Great project thanks, enjoy your detail information and procedures on the spur gear making.
Do you make helical gears?
Hi Keith, nice work. Could you show us (your method) how to align the cutter in the center of the workpiece? I'm wondering how to do it. Best regards!
Calidad 👍🇻🇪👍
Not all cast iron is the same, and some forms (SG) have graphite content, making them very strong. Also, most cast irons form a fantastic hard skin, which is perfect for gear teeth.
I'm surprised you didn't do a braze repair on the gears. But, your machine your decision as to the how to...
When we gonna see the vertical head for the Kearney & Trecker get repaired.....still waiting and looking forward to that.
What do you say about using grease to hold the pins while measuring I’ve herd grease can mess up the measurements