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i cant express how happy i am about your lathe being broken and needing restoration. yes im selfish and i want ALL THE lathe restoration videos from you
Hardinge hlv is also my dream Lathe I learned everything I needed on a set of four of them your gonna. I can't wait to see how you decide to rebuild that ol girl
At one place I worked we had a lathe with .010 taper every foot. When my fellow machinist asked to show him how to turn it on I absolutely knew I was in for a day of under rated entertainment. I was right. When asked how I dealt with the taper I told him he needed to watch and turn the cross slide in .001” for every .935” of dial rotation. I know, I know, I’ll burn in hell. It was worth it. I didn’t know that little lugger could hold that much round stock. Plus? I’m not even a machinist, don’t ask don’t tell was my policy.
I wanted you to onow I got randomly unsubscibed, maybe others have too. I also have to think, wouldn't a torque wrench enhance repeatability? The same set and tension on the extrusion should help infinitesimally. 😉👍
But trust me, 3D printers are the worst if you're into this stuff, you're gonna buy printers to print printers which print printers before printing printers themselves that will then print printers that... Yeah. But really, I only enjoy the technology and all the building stuff, not the printing itself, that part doesn't really matter to me. Actually, if I had the money and space, a little lathe is something I desire way more than 3D printers, just because I hate plastic and love metal, but right now, 3D printers are what I can afford and it's just more practical. But some day I'll start working with metal...
There is an empirical test for when you have too many lathes. If any of them are under tarps, outside, you have too many lathes. This also applies for other tools.
Oh, don't worry, every person who is somewhat enthusiastic about tools (especially high/good quality tools) will feel the same way. I feel that way after buying the 12th version of the same pair of pliers, just with a slight change/difference in comparison to the ones I already own.
Love the new lathe - which should come in rather handy chasing ever more perfect precision! I’ve also begun to notice pleasantly subtle differences in these videos since their humble beginnings. It’s almost like that initial production polish, that set your channel apart from others, is starting to reveal a nice patina and minor wear patterns unique to your personality and humor. Always a pleasure 😊
@@InheritanceMachiningI have been using Hardinge Lathes where I work and can confirm they are well worth it. I just last week made a bushing with a +- 50 mil bore. The only annoying part is the non-adjustable tailstock for tapers.
@@InheritanceMachining oh geez. Is it the ways or can a new jig measure it? How many thou are we loosing because of this groove? Should buff right out. 🤦♀️
FYI you might want to do Kurtis a solid and spell out Cutting Edge Engineering for all of the people who have no idea what CEE means and don't know that channel exists. They may be interested in his channel, too. But they'll never know what it is if you assume everybody knows every youtube shorthand. 🤷 IMO, Kurtis is a stark contrast to Abom79, who talks and talks and talks and barely does any machining while Kurtis explains exactly what he's doing and then does it. Kurtis is soooo much easier to watch.
15:33 I'm not sure about your comment here about the Cosine Error reaching a minimum when the stylus is parallel to the surface you are measuring. That would make intuitive sense, but i think some (most) of the test indicators out there are compensated to measure most accurately (Smallest cosine error) when the stylus is at 12 degrees between the stylus and the surface being measured. This would make sense, as that would be closer to standard operation, and they would want it to read most accurately the way most users would be using the gauge.
Im not a machinist but your ending statement really hits me. To find something that pushes you and it excites you is amazing and I feel like I have not had that in awhile so definitely something i would want to find
"Just the thought of all the things I'm gonna learn gets me really excited." - That statement right there sums up the joy that this channel brings to the audience. I suspect that all of us out here in this fix stuff/make stuff corner of RUclips land feel the same way. It's certainly been the driving sentiment of my life. That dopamine jolt when you learn something new is the best feeling in the world and we're all very happy and grateful that you are taking us along on this learning journey.
@@InheritanceMachining Not excactly what I meant 😜 I just love your early videos with bringing the machines back to life with the care you bring to the projects. Good luck friend!
I began my (hobby) machine operator's ("I'm not a machinist, I'm a guy that owns some machine tools.") journey by buying a Bridgeport-style knee mill, and promptly taking a bit more than a year to get it cleaned up and functioning. The original plan was just cleaning, but the more I cleaned, the more I saw... and the more I saw, the more I saw that needed to be fixed. It's still far from like-new condition and there are still a fair number of kluges/bubba fixes in place, but (almost) everything works, and as long as I am paying attention, I have no trouble landing within half a thou of my target dimensions. That experience has been *invaluable* as I got my lathe up and running, and as I am going through the process of getting my "n+1" lathe cleaned up and operational. Some parts (bearings, etc...) I have found to be off-the-shelf industrial parts, some parts I have found to be off-the-shelf industrial parts that can be relatively lightly modified to work (change gears), and still other parts have to be fabricated from scratch (so far, I have mostly used my machine tools to make/modify parts for my other machine tools). Exploded/parts diagrams and reverse engineering skills have been absolute lifesavers in terms of keeping these machines from becoming basket cases looking for a new home. Kudos to you for jumping into this thing!
"this lathe is more rigid than I am".... You supporting a very strong shape, mate? :D As a Mech. Eng, doing this for longer than my own strong shape, I've come to enjoy the subtleties. you're my kind of joker. On ya for that.
I love this channel so much. Your voice is so soothing & your editing is perfect. I am always compelled to watch your videos at normal speed just so it lasts longer - i watch most youtube videos at 2x speed.
Im going through in woodworking everything you are going through in machining: I am being challenged everyday with more and more complex projects…and I absolutely love it! Im learning something new with each new challenge, and I see my work results getting better and better. Thats why I enjoy watching your channel, because I see you experiencing these same challenges and see how you meet them head-on and conquer them every time. You inspire me. And when I mess up in my woodworking and ruin a beautiful piece of wood that I put so much hard work into, I think of you and your “box of shame,” smile and painstakingly make a new piece, this time the right way. Thank you for the inspiration, the education, and the entertainment. I look forward to each video you make like a warm fireplace fire on a cold Minnesota winter’s night.
This channel was great from the get go and is STILL getting better! I especially love the story telling on this one. I am really excited for this lathe restoration!
I so enjoy my time with this channel. The pursuit of precision with the firm knowledge of what is possible/ realistic/ relevant and that failure (provided one is honest) has limited consequence. Both my grandfathers' were engineers though there practical and commercial experience took them away from practical tool use. My mother a sculptress and my father a linguist have no confidence to build the world around them. That a solution was in there power rather than at their comission was alien. Latterly I have offered to help them out, however the expectation is lesser for I am a wine merchant. The problem solving of a shelving unit or a garage door repair has brought them out of themselves weirdly. Divergent skills and different processees have become useful rather than confrontational and solutions seem possible. It started with me just buying brass dimmer switches on Amazon.
The “worth it” at 11:30 sums up how I, myself, watch every time you’ve ever added chamfers or corner rounds with your new radius fixture plate. Glorious. Keep up the amazing content!
I for one, am certainly looking forward to watching the process of making this lathe true! I think it is worth tracking your estimated time of repair vs. your actual time of repair… …and of course letting us all know exactly how far off you are in the end. Best of luck and keep up the great work.
Psychology student here: The cognitive bias you are referring to might be a “Mental Set”: The phenomenon of becoming stuck in a specific problem-solving strategy, inhibiting your ability to generate alternatives. Interestingly, you exhibited another cognitive error right afterwards: The “Hindsight Bias” in which you overestimated your ability to have recognized the error after it already happened. Love your videos! Cheers!
If you normalized your first map, you should basically get the same shape as the second one you did, so it wasn't that bad :) Love it when you do measuring tests like this btw. Do a Gage R&R next?
I suppose I could have tried that. But not as fun as making something! 😂 I might have the do a GR&R at some point I've never attempted before but seems necessary given the precision I'm truing to get into on this one...
Using the extrusion - my first thought was that’s not flat enough. But it looked like for every reading it was set to zero on the surface plate then measure the bed. Tedious, but that would eliminate any issues with the extrusion.
Good quality Angular Contact Ball Bearings are extremely expensive for high quality and the replacement may require precision grinding. Good luck with that difficult job!!!!
What an impressive bit of kit you've got there! And, I'm incredibly impressed with that lathe and the thoughtful design features they included. The whole time you were showing it off, my brain kept interrupting you with loud "WTF?!?!" exclamations of excitement... (e.g. metric and English standard getting along together in the same machine still blows my mind!) And then you show off your test setup... Just a massively impressive effort and a really interesting video to watch, thanks so much for posting!
I love the vids man, great work! You sir are a wizard of machining. Just recently found this channel and can say your creativity, style, and humor has been helping me through a pretty dark time. This is the channel I go to when I’m spiraling or overwhelmed and it helps greatly. Keep up the awesome content, cheers.
It has probably been said before and I'm sorry but I need to do a little nitpicking: In a normal 3-phase system for a normal 3-phase motor it is impossible to have "two of the(!) three electrical phases backwards" @2:12 For a normal 3-phase motor it's irrelevant which phase "comes first" - all that is import is that the order is right. E.g.: 123, 231 & 312 the motor will always spin in the right direction. The one(!) and only wrong ways(!) to connect it is 132, 321 & 213 Now who wants to tell me which phase or phases is/are connected in the wrong order in those one=three case(s)... There are only six permutations of 1, 2 & 3. Half of them are right and half of them are wrong and you always need to flip two phases - ANY two phases - to correct "the" wrong order. So saying you "connected two of the three phases backwards(!)" will hurt any electrician and turn Nikola Tesla another 120°=(2/3)*pi in his grave. 😞
Three points: A. Christmas came early to your house. Make sure "Santa" got a plate of cookies. 2. I look forward to seeing how you correct the spindle and bed of your "free" lathe. C. I love your sense of humor!!!!!!😂
What a brilliant solution to your problem of measuring without needing the lathe to be level. I don't know if you thought this up yourself or if you saw it somewhere, but I have never seen anything other than the leveling method so it's new to me!
Better to know what's wrong then not still i am sure you figure out a way to fix all them problems looking forward to seeing the video's i have faith in your ability's :3
Brandon. What an excellent way you showed to measure the worn areas of your new machine. I'll be very eager to see how you go about correcting these issues!
I can completely understand that weird sense of joy that comes with the opportunity to learn something new. Trying to get that lathe back in spec promises to be quite the journey of learning, and I'm sure there will be all sorts of neat things to discover once you start digging in to it. Congrats, and big thanks to Santa Craig for making this possible!
I have just started machining in my new job and have found your videos so helpful! At 50 and in a new career I wanted as much of a head start as possible. The way you present your processes and share your knowledge has a nice way of sticking with my brain. I wish I could give 2 thumbs up per video. Thank you and I can’t wait until the next one.
An avid viewer of your videos( and CCE), I have been given an old Interkren IK-D400 (I think Chinese made-Herman labelled) lathe to start my machining journey late in life. I eagerly and very excitedly await your lathe restoration videos. It will reliably guide me through restoring my ‘new’ but very much loved machine. Thank you so very much.
I wonder how you’re going to straighten the dips on the bed and the dovetail. I know how some Russian RUclipsr machinists do it but it’s a major pain as they literally shave off the high parts to bring the surface to the same plane. Curious what you’ll do.
I'm curious too. That bed is too big for his surface grinder. He might be forced to outsource that part to a shop with a big enough and precise enough grinder to really dial that puppy back in. I assume it's all 1 big casting.... but maybe he's sneakier than we know and has some plan. Look forward to finding out
@@LoneWolfPrecisionLLC Scraping it in is how this kind of thing is done IIRC. Surface grinding is good, but scraping is *better*, slower, harder, but better.
@@LoneWolfPrecisionLLC scraping is for the tiny dialing in of post grind imperfection.... hand scraping the whole bed to even out that wear dip would be near impossible
I'm from the UK and with all the TV channels broadcasting absolute garbage, I've resorted to only watching RUclips for my televisual entertainment and I have subscribed to a few channels now where the creator does something interesting and does it with excellent production values. Yours is one of those that's been added to my list. Your content is just so easy to watch and each episode is just the right length. I know it's not everybodies cup of tea, but as an engineer in the oill and gas industry, I think it's marvelous.
I would guess you are already thinking this through pretty well, but it might be a good idea to find an experienced buddy or the like to help you think this through. The variables compound on each other and if you miss one, it's easy to do more harm than good. For instance, your assumption that any wear on the dovetail is on the back may be correct, but measuring off the saddle is of course only a preliminary exploratory measure. It's likely some of the wear from the top of the bed is skewing your indicator's measurement on the dovetail as the saddle lowers into the wear during movement, and that contains some of that "cosine error" you talked about too. Then once you go truing up the top of the bed, you are reducing the distance between that plane and the lead screw, feed rod and feed rack, so now you have something new to address there. I can't imagine it will be very easy to dream up a way to scrape the bed without starting with some precision reference, so you might be looking at finding that in the form of a granite plate large enough to accommodate the size of the bed and of known precision as well. Maybe there's a workaround, but a fundamental variable nonetheless. It'll be fun to see how you address it all though. Good luck.
Hurry up with another video already! I really enjoy your work and presentation. Watching these videos are fun, relaxing and gives me ideas on projects to do with what I have (no lathes or mills). I'm trying to learn Fusion so I can get ideas on paper.
There's something so satisfying and cathartic about these maker and repair youtube channels. Yours especially, because on top of your diligence, you're incredibly competent! Additionally, your expertise is so well conveyed to us through the great editing. All in all, you're one of my favorite channels and I'm thankful for you and your grampa. Much love
This will be super fun. Glad you decided to take it on! Interesting way of inspecting too, I would have used an autocollimator but your technique made sense.
Honestly, I am actually glad there is work to do and the lathe needs some TLC. Don't get me wrong I feel like I know you know what I mean. I am so looking forward to seeing you pull that thing apart and put it back together. Especially when it is out so much and we/you get to see the fruits of your labor. If it the runout wasn't as much the gain would be nominal but now we get to watch you bring this lathe back into spec and it will be a fun watch. You have a meticulous nature (being kind as I am sure it's a touch of OCD like most of us that call ourselves machinists) but this is going to be a really fun watch. Totally stoked to get started. So NEXT WEEK the tear down begins RIGHT! Come on now, we're hooked and counting on you every week to throw down and avoid the box of shame.....LOL well don't avoid feeding it all together now. That's educational too. All in fun I know how much work it takes to do weekly videos so don't stress and have a WONDERFUL holiday season.
Your videos have me cackling all day long. I loved your workmanship. And it's super cool to see how you go about fixing problems. as a fellow machinist, I can relate to some of them.
Even as an well versed amateur woodworker I know that feeling. When I made my first and second router plane it was such a revelation. And the first router plane helped me make a better and more accurate second one…. Such a high!
This is quite interesting and important topic, lathe straightness and perpendicularity. My first lathe was Atlas 10". And it is built so you can turn the bed around and use the rear end on the front, (it has both ways flat) when the ways gets worn out, you have to drill holes for the lead screw end support and mount the teeth rack on the other side, but you can do it. Imagine if Hardinge would have designed the ways in such way you could just flip the flat plate ways around...
On reversing your fixture - part of my job is in software realm. Sometimes I realize that for a couple of weeks I've been going on wrong direction. Then I'll take a deep breath and delete a lot code. It used to feel bad but nowadays it kind of feels nice - there was a mistake, I caught it before production and learned something I'll never forget.
I absolutely love this channel. Ive never machined anything but its great to see the processes and problems inbolved. To overcoming new challenges and growing wisdom. Salud my friend.
We were able to calibrate our granite and cast iron surface plates, thanks to an accurate CMM and gauge, which were calibrated externally. Building the 'map' of a large granite surface plate can be formidable, just like your lathe bed. In fact I think your lathe bed is harder than a surface plate, due to the wear patterns being more drastic on the lathe bed. So glad I found your channel, keep up the good work 👍
You mention a point there I didn't talk about. Apparently the lathe bed is hardened steel, so scraping may be a bit of a challenge 😅 I've got some ideas floating around though... Thanks!
Brilliant video, its been great keeping up with your channel and the amazing work you have done. Just a note: The lever indicators are calibrated to have a 12degree angle between the lever arm and the horizontal surface. Deviation away from the 12 degrees will give you a cosine error, exactly as you described. Awesome video, keep up the good work G
This video is so freaking good lol mainly because the lathe sitting in my garages bed is modeled the exact same way, and your information about "what makes a good spindle" helped me decide what mods to do for my spindle to make it more rigid. This ones gonna be rewatched quite a few times.. but im even more excited for the fixes video
@@InheritanceMachining for space constraint and practicality reasons, i sold the lathe you helped me with the VFD on. It still literally brings me to tears thinking about it. However, the proceeds brought a Smithy 13x40 mill lathe in my home garage that i can use everyday and no traveling or stoppage from the wife. Recently i noticed some play in the lathe spindle that causes chatter. Taking the gear train apart, the only thing that could possibly allow that kinda play is slop in the spindle bearings. I know using precision tapered roller bearings is the proper way to go, but the spindle wasnt designed for those (even though thats how they refer to those in the drawings). I know they cant be, because there is no way to preload them. Or if the nut that was on the back is how you do it, its not a bulky enough nut to properly put compression onto it. Anyways, with the pulley wheel and clutch mechanism on the spindle, it complicates modifications for improving performance. However, now i have a DC motor on stand by from a past project that i am going to mount up top to direct drive the mill head so i can do away with the clutch and drive train parts off the lathe spindle that transfer power to mill head. This will open up the possibilities for modifications to the lathe spindle. Im damned determined to make this Smithy perform as good as any shop mill and lathe since it will probably be a long time before i can expand my space and get a proper mill and lathe in the shop. Plus, it just sounds like a fun project. Now i just have to work up the courage to go into the youtube field with it and hopefully start making it where the wife dont have to work if she doesnt want to.
ngl, this is rapidly becoming my favorite channel, not just my favorite _machining_ channel...and you are even threatening "this old tony"'s perennial status as funniest machinist ever! *respect.*
"Just the tought of all the things I'm going to learn doing this gets me excited!" This is what I think each time I have to machine a complex, uncommon and new part!❤ Altough I'm a cnc machinist, my dream is to have my own small workshop with conventional mill and lathe, just like yours!! G-coding and CAM-ing sometimes just cuts the flavor of the work..(well, not always, but I think you know what I mean)😊
I do know what you mean 😁 I would be lying if I said I didn't add unnecessary complexity to all of my designs so that they would be fun to make! Good luck on building out your shop!
@InheritanceMachining thank you kindly Mr. Brandon! And good luck to you sir in this wonderful adventure you started!! You have no ideea how inspiring your videos are!!!
Funny thing, I did the same thing this past summer and completely agree on how rewarding it is to rebuild a free machine tool. I was given an admittedly more humble south bend 9a from 1944 (yep, war iron) and rebuilt it from the ground up myself aside from hiring a pro the scrape it in. Next project is trying to figure out how to mount glass scales on it.
I dream of having an HLV and I cannot wait to follow along as you check out all the various ways the lathe has aged and you tuning it into fantastic shape. Thank you for sharing!
I like the iterative nature of your lathe rebuild--you don't have everything figured out, it's not easy, you're learning, you're embracing all the bits of suck along the way. Nice touch that you're using some of that advanced math as you're re-learning calculus a la Brilliant, that.
Hey, not sure if you’ll read this but check the spindle runout with a collet installed. This lathe uses angular contact roller bearings which require a preload to be accurate, just like tapered roller bearings. When a collet is installed it will pull the spindle nose into the body (provided you are using a drawbar which in this case is the only way to use it). Chuck up some ground round stock in a (preferably new or high quality) collet and check the runout and end play. If it all reads good then all you need to do is adjust preload, which would be WAY better than needing to replace the bearings, because the bearings on a hardinge are not cheap and replacing them without damaging anything else (or the bearings themselves) is a major challenge.
the videography of this video was super nice. I don't know if this was intentional or not but some shots really caught my eye. excited to see where this goes!
I like a lot how those video smell cuting oil and metal chips and still feel cosy. Nicely cinematographied and (re?)scripted. Some great pieces of well produced (just-on the-edge-of-hobby) mechanic's movies you got here.
Just a guess here but I bet there's either a preload adjustment for the spindle or shims that can be added/removed on the headstock and/or spindle bore. Brand new bearings might be pretty pricey at that diameter, so seeing how it behaves shimmed out might be your best first step
Hi eitan not a hardinge or its clones expert , but😁 if this machine is from the same factory as the Sharp or Kent versions, it uses a matched pair of 7014cp4 angular contact bearings . the preload is in the matching , there is no adjustment to be done, as I said in an earlier comment they are either perfect or broken. Or the shaft nut came loose allowing the spindle shaft to move. Or the outer bearing spacer retaining taper pin is loose and allowing the whole spindle assemble to move. Speculation is fun ,Hopefully Brandon will show us what is actually wrong in the next video.
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i cant express how happy i am about your lathe being broken and needing restoration.
yes im selfish and i want ALL THE lathe restoration videos from you
There are points where you can visibly see the play as you reef on the lathe, I'm no machinist but I do understand tolerance stacking.
Hardinge hlv is also my dream Lathe I learned everything I needed on a set of four of them your gonna. I can't wait to see how you decide to rebuild that ol girl
At one place I worked we had a lathe with .010 taper every foot. When my fellow machinist asked to show him how to turn it on I absolutely knew I was in for a day of under rated entertainment. I was right. When asked how I dealt with the taper I told him he needed to watch and turn the cross slide in .001” for every .935” of dial rotation. I know, I know, I’ll burn in hell. It was worth it. I didn’t know that little lugger could hold that much round stock. Plus? I’m not even a machinist, don’t ask don’t tell was my policy.
I wanted you to onow I got randomly unsubscibed, maybe others have too. I also have to think, wouldn't a torque wrench enhance repeatability? The same set and tension on the extrusion should help infinitesimally. 😉👍
I love tooling on tools to tool more tools
Will these tools help to tool more tools?
tools for tools?
It's tools all the way down.
Lol. These tools commenting on tools...
@@tehbonehead takes a tool to know a tool. :P
Feels as if I’ve been using the lathe equation for all my tools
It's universal. You're good to go 👍
It applies to anything worth having, really
But trust me, 3D printers are the worst if you're into this stuff, you're gonna buy printers to print printers which print printers before printing printers themselves that will then print printers that... Yeah. But really, I only enjoy the technology and all the building stuff, not the printing itself, that part doesn't really matter to me. Actually, if I had the money and space, a little lathe is something I desire way more than 3D printers, just because I hate plastic and love metal, but right now, 3D printers are what I can afford and it's just more practical. But some day I'll start working with metal...
There is an empirical test for when you have too many lathes. If any of them are under tarps, outside, you have too many lathes. This also applies for other tools.
Oh, don't worry, every person who is somewhat enthusiastic about tools (especially high/good quality tools) will feel the same way. I feel that way after buying the 12th version of the same pair of pliers, just with a slight change/difference in comparison to the ones I already own.
Love the new lathe - which should come in rather handy chasing ever more perfect precision!
I’ve also begun to notice pleasantly subtle differences in these videos since their humble beginnings. It’s almost like that initial production polish, that set your channel apart from others, is starting to reveal a nice patina and minor wear patterns unique to your personality and humor.
Always a pleasure 😊
It could be a curse for me 😂 Glad you've followed for long enough to notice a difference. I'm feel like I'm hitting a groove. Thanks!
was thinking the same thing
@@InheritanceMachiningI have been using Hardinge Lathes where I work and can confirm they are well worth it. I just last week made a bushing with a +- 50 mil bore. The only annoying part is the non-adjustable tailstock for tapers.
I like that he curses more and the schoolboy humour plus dad jokes haha
@@InheritanceMachining oh geez. Is it the ways or can a new jig measure it? How many thou are we loosing because of this groove? Should buff right out. 🤦♀️
In other words, Santa Craig not only gave you a lathe, he also gave you plenty of content for the future! It’s the gift that keeps on giving.
It's literally the story of EVERY used machine tool - it's a never ending project
Always looks forward to you and CEE's videos on Friday. Thanks to both for sharing your knowledge.
yes & Amen
Can’t forget ToT!
FYI you might want to do Kurtis a solid and spell out Cutting Edge Engineering for all of the people who have no idea what CEE means and don't know that channel exists. They may be interested in his channel, too. But they'll never know what it is if you assume everybody knows every youtube shorthand. 🤷
IMO, Kurtis is a stark contrast to Abom79, who talks and talks and talks and barely does any machining while Kurtis explains exactly what he's doing and then does it. Kurtis is soooo much easier to watch.
@@J.C... and somehow they manage to beat 99% of channels on video quality while only filming on phones
@@J.C... thank you i was just about to ask
15:33
I'm not sure about your comment here about the Cosine Error reaching a minimum when the stylus is parallel to the surface you are measuring. That would make intuitive sense, but i think some (most) of the test indicators out there are compensated to measure most accurately (Smallest cosine error) when the stylus is at 12 degrees between the stylus and the surface being measured. This would make sense, as that would be closer to standard operation, and they would want it to read most accurately the way most users would be using the gauge.
Im not a machinist but your ending statement really hits me. To find something that pushes you and it excites you is amazing and I feel like I have not had that in awhile so definitely something i would want to find
I may regret saying that 😂 but I think the root of it is going into unfamiliar territory. That may be a start for you
"Just the thought of all the things I'm gonna learn gets me really excited." - That statement right there sums up the joy that this channel brings to the audience. I suspect that all of us out here in this fix stuff/make stuff corner of RUclips land feel the same way. It's certainly been the driving sentiment of my life. That dopamine jolt when you learn something new is the best feeling in the world and we're all very happy and grateful that you are taking us along on this learning journey.
Very well put! The only thing that's better is when you make something that actually works! Thanks, Chris
Looking forward to the restoration :) excactly what I was hoping for.
You were hoping my lathe was all worn out? 😉
thanks
@@InheritanceMachining Not excactly what I meant 😜 I just love your early videos with bringing the machines back to life with the care you bring to the projects. Good luck friend!
@@InheritanceMachining What fun is there when everything works, nothing to fix or improve? All worn out would be depressing though.
I began my (hobby) machine operator's ("I'm not a machinist, I'm a guy that owns some machine tools.") journey by buying a Bridgeport-style knee mill, and promptly taking a bit more than a year to get it cleaned up and functioning. The original plan was just cleaning, but the more I cleaned, the more I saw... and the more I saw, the more I saw that needed to be fixed. It's still far from like-new condition and there are still a fair number of kluges/bubba fixes in place, but (almost) everything works, and as long as I am paying attention, I have no trouble landing within half a thou of my target dimensions.
That experience has been *invaluable* as I got my lathe up and running, and as I am going through the process of getting my "n+1" lathe cleaned up and operational. Some parts (bearings, etc...) I have found to be off-the-shelf industrial parts, some parts I have found to be off-the-shelf industrial parts that can be relatively lightly modified to work (change gears), and still other parts have to be fabricated from scratch (so far, I have mostly used my machine tools to make/modify parts for my other machine tools). Exploded/parts diagrams and reverse engineering skills have been absolute lifesavers in terms of keeping these machines from becoming basket cases looking for a new home.
Kudos to you for jumping into this thing!
"this lathe is more rigid than I am".... You supporting a very strong shape, mate? :D As a Mech. Eng, doing this for longer than my own strong shape, I've come to enjoy the subtleties. you're my kind of joker. On ya for that.
😂 thanks, man
@@InheritanceMachining6mo late to party and deeply enjoyed this joke 😂
I love this channel so much. Your voice is so soothing & your editing is perfect. I am always compelled to watch your videos at normal speed just so it lasts longer - i watch most youtube videos at 2x speed.
😂 With as much talking as I do 2X might be hard to keep up! But seriously thanks a lot!
It's awesome to see you get more comfortable on camera/start to add more humor into your videos!
🙃 thanks
Im going through in woodworking everything you are going through in machining: I am being challenged everyday with more and more complex projects…and I absolutely love it! Im learning something new with each new challenge, and I see my work results getting better and better. Thats why I enjoy watching your channel, because I see you experiencing these same challenges and see how you meet them head-on and conquer them every time. You inspire me. And when I mess up in my woodworking and ruin a beautiful piece of wood that I put so much hard work into, I think of you and your “box of shame,” smile and painstakingly make a new piece, this time the right way. Thank you for the inspiration, the education, and the entertainment. I look forward to each video you make like a warm fireplace fire on a cold Minnesota winter’s night.
Your best one yet. The script. The comedy. The rude dad jokes. The intelligence. Fkn banger. Nailed it dude
This channel was great from the get go and is STILL getting better! I especially love the story telling on this one. I am really excited for this lathe restoration!
I so enjoy my time with this channel. The pursuit of precision with the firm knowledge of what is possible/ realistic/ relevant and that failure (provided one is honest) has limited consequence. Both my grandfathers' were engineers though there practical and commercial experience took them away from practical tool use. My mother a sculptress and my father a linguist have no confidence to build the world around them. That a solution was in there power rather than at their comission was alien. Latterly I have offered to help them out, however the expectation is lesser for I am a wine merchant. The problem solving of a shelving unit or a garage door repair has brought them out of themselves weirdly. Divergent skills and different processees have become useful rather than confrontational and solutions seem possible. It started with me just buying brass dimmer switches on Amazon.
The “worth it” at 11:30 sums up how I, myself, watch every time you’ve ever added chamfers or corner rounds with your new radius fixture plate.
Glorious. Keep up the amazing content!
I honestly can not WAIT for the rebuild series! I think I may be more excited than you are!!
😂 Well then that is quite a lot!
Okay I lost it at “more rigid than I am right now” 🤣🤣
I for one, am certainly looking forward to watching the process of making this lathe true!
I think it is worth tracking your estimated time of repair vs. your actual time of repair…
…and of course letting us all know exactly how far off you are in the end.
Best of luck and keep up the great work.
Oh I have no idea how long this is going to take 😂 I've never done a true restoration before.
Thanks
@@InheritanceMachining I think all the world will demand a guess! 🤔🤪
Psychology student here:
The cognitive bias you are referring to might be a “Mental Set”: The phenomenon of becoming stuck in a specific problem-solving strategy, inhibiting your ability to generate alternatives.
Interestingly, you exhibited another cognitive error right afterwards: The “Hindsight Bias” in which you overestimated your ability to have recognized the error after it already happened.
Love your videos! Cheers!
There we go! Someone else also mentioned "Anchoring bias" which seemed to fit as well. Thanks!
I have exams next week and so I'm tensed but your video while I do my dinner is a perfect stress buster for an engineering student. 😊
Glad I could help 😁 Good luck on finals!
@@InheritanceMachining thanks man ❤️
3:10 genius writing
If you normalized your first map, you should basically get the same shape as the second one you did, so it wasn't that bad :) Love it when you do measuring tests like this btw. Do a Gage R&R next?
I suppose I could have tried that. But not as fun as making something! 😂 I might have the do a GR&R at some point I've never attempted before but seems necessary given the precision I'm truing to get into on this one...
R&R?
Using the extrusion - my first thought was that’s not flat enough. But it looked like for every reading it was set to zero on the surface plate then measure the bed. Tedious, but that would eliminate any issues with the extrusion.
@@taitano12 Repeatability and Reproducibility.
@@koharaisevo3666 Ah. Cool, thanks.
Good quality Angular Contact Ball Bearings are extremely expensive for high quality and the replacement may require precision grinding. Good luck with that difficult job!!!!
Outstanding! Nothing better than an opportunity to rebuild a precision lathe. Waiting anxiously to see you conquer this ❤
thanks!
What an impressive bit of kit you've got there!
And, I'm incredibly impressed with that lathe and the thoughtful design features they included. The whole time you were showing it off, my brain kept interrupting you with loud "WTF?!?!" exclamations of excitement... (e.g. metric and English standard getting along together in the same machine still blows my mind!)
And then you show off your test setup... Just a massively impressive effort and a really interesting video to watch, thanks so much for posting!
I love the vids man, great work! You sir are a wizard of machining. Just recently found this channel and can say your creativity, style, and humor has been helping me through a pretty dark time. This is the channel I go to when I’m spiraling or overwhelmed and it helps greatly. Keep up the awesome content, cheers.
We all have those times man. You will make it though ❤ Glad I could help!
I'm really excited on this project you have!! I'd love to see the entire restoration and learning a lot about how it works!
Looks like won't be skipping anything!
I just finnished a 20 hour shift to see the new video... totally made my day!
Get some rest, my man!
Highlight of my Friday - cant wait to watch!
It has probably been said before and I'm sorry but I need to do a little nitpicking:
In a normal 3-phase system for a normal 3-phase motor it is impossible to have "two of the(!) three electrical phases backwards" @2:12
For a normal 3-phase motor it's irrelevant which phase "comes first" - all that is import is that the order is right. E.g.: 123, 231 & 312 the motor will always spin in the right direction.
The one(!) and only wrong ways(!) to connect it is 132, 321 & 213
Now who wants to tell me which phase or phases is/are connected in the wrong order in those one=three case(s)...
There are only six permutations of 1, 2 & 3. Half of them are right and half of them are wrong and you always need to flip two phases - ANY two phases - to correct "the" wrong order.
So saying you "connected two of the three phases backwards(!)" will hurt any electrician and turn Nikola Tesla another 120°=(2/3)*pi in his grave. 😞
Three points:
A. Christmas came early to your house. Make sure "Santa" got a plate of cookies.
2. I look forward to seeing how you correct the spindle and bed of your "free" lathe.
C. I love your sense of humor!!!!!!😂
I think I owe Craig more than a plate of cookies!
I agree, but it would be a good place to start!!!!!
What a brilliant solution to your problem of measuring without needing the lathe to be level. I don't know if you thought this up yourself or if you saw it somewhere, but I have never seen anything other than the leveling method so it's new to me!
Thanks! I can't say I've seen it before, but I've also never looked.
It is an excellent idea!
Better to know what's wrong then not still i am sure you figure out a way to fix all them problems looking forward to seeing the video's i have faith in your ability's :3
Brandon. What an excellent way you showed to measure the worn areas of your new machine. I'll be very eager to see how you go about correcting these issues!
Thanks Ron! I'm eager to figure that out as well 😅
Hell ya new IM video! That mathematical proof is also applicable to pocket knives.
Let's not forget motorcycles 😂
Oh goodness yes! A lathe rebuild video coming! I love these!
As always, great video! Can't wait to see you rebuilding this lathe.
Thanks, Walter!
I can completely understand that weird sense of joy that comes with the opportunity to learn something new. Trying to get that lathe back in spec promises to be quite the journey of learning, and I'm sure there will be all sorts of neat things to discover once you start digging in to it. Congrats, and big thanks to Santa Craig for making this possible!
How did you find the space for this? I though the shop was filled to the brim
theres always room for one more lathe
new lathe > sandblasting cabinet
I have just started machining in my new job and have found your videos so helpful! At 50 and in a new career I wanted as much of a head start as possible. The way you present your processes and share your knowledge has a nice way of sticking with my brain. I wish I could give 2 thumbs up per video. Thank you and I can’t wait until the next one.
This is going to be an awesome restoration series.
An avid viewer of your videos( and CCE), I have been given an old Interkren IK-D400 (I think Chinese made-Herman labelled) lathe to start my machining journey late in life. I eagerly and very excitedly await your lathe restoration videos. It will reliably guide me through restoring my ‘new’ but very much loved machine. Thank you so very much.
Is it possible to flip the table around? I know it's a silly question...
i might be actually. but then i'd have the same issue with the tailstock haha
@@InheritanceMachiningonly at the full extend which is a lower probability...
Thank you for the metric conversion.
The bed is ground hardened tool steel. Your not scraping this bed.
Don't forget the n < d -1 constraint where d is the number of lathes prior to divorce proceedings.
I wonder how you’re going to straighten the dips on the bed and the dovetail. I know how some Russian RUclipsr machinists do it but it’s a major pain as they literally shave off the high parts to bring the surface to the same plane. Curious what you’ll do.
I'm curious too. That bed is too big for his surface grinder. He might be forced to outsource that part to a shop with a big enough and precise enough grinder to really dial that puppy back in. I assume it's all 1 big casting.... but maybe he's sneakier than we know and has some plan.
Look forward to finding out
@@dpmessemost likely he will scrape it in
@@LoneWolfPrecisionLLC Scraping it in is how this kind of thing is done IIRC. Surface grinding is good, but scraping is *better*, slower, harder, but better.
@@LoneWolfPrecisionLLCThat's what he said he was hoping for.
Scraping in a lathe bed like this is going 5ovbe an interesting video
@@LoneWolfPrecisionLLC scraping is for the tiny dialing in of post grind imperfection.... hand scraping the whole bed to even out that wear dip would be near impossible
I'm from the UK and with all the TV channels broadcasting absolute garbage, I've resorted to only watching RUclips for my televisual entertainment and I have subscribed to a few channels now where the creator does something interesting and does it with excellent production values. Yours is one of those that's been added to my list. Your content is just so easy to watch and each episode is just the right length. I know it's not everybodies cup of tea, but as an engineer in the oill and gas industry, I think it's marvelous.
15:10 Somewhere is Storage I have a conventional face Original Hardinge 10th's indicator with 1/4" of travel (and it CAN use extension's) :)
I would guess you are already thinking this through pretty well, but it might be a good idea to find an experienced buddy or the like to help you think this through. The variables compound on each other and if you miss one, it's easy to do more harm than good. For instance, your assumption that any wear on the dovetail is on the back may be correct, but measuring off the saddle is of course only a preliminary exploratory measure. It's likely some of the wear from the top of the bed is skewing your indicator's measurement on the dovetail as the saddle lowers into the wear during movement, and that contains some of that "cosine error" you talked about too. Then once you go truing up the top of the bed, you are reducing the distance between that plane and the lead screw, feed rod and feed rack, so now you have something new to address there. I can't imagine it will be very easy to dream up a way to scrape the bed without starting with some precision reference, so you might be looking at finding that in the form of a granite plate large enough to accommodate the size of the bed and of known precision as well. Maybe there's a workaround, but a fundamental variable nonetheless. It'll be fun to see how you address it all though. Good luck.
Hurry up with another video already! I really enjoy your work and presentation. Watching these videos are fun, relaxing and gives me ideas on projects to do with what I have (no lathes or mills). I'm trying to learn Fusion so I can get ideas on paper.
There's something so satisfying and cathartic about these maker and repair youtube channels. Yours especially, because on top of your diligence, you're incredibly competent! Additionally, your expertise is so well conveyed to us through the great editing. All in all, you're one of my favorite channels and I'm thankful for you and your grampa. Much love
That is very kind, man. Thank you!
I'm as exited to watch the restoration as you are exited to restore it. Thanks for taking us along for the ride!
I am more invested in this channel than I am in most, if not all tv shows and movies I watch. Can’t wait to see the rebuild process
Do you trust the straightness of your aluminum extrusion? I would expect it to have a tolerance of greater than 0.010" per foot for straightness.
This will be super fun. Glad you decided to take it on! Interesting way of inspecting too, I would have used an autocollimator but your technique made sense.
Im a CNC EDM technician, and im amazed by your machining skills and love for the craft.
Geetings from Mexico. Love the content.
This is so exciting. I can't wait for the next video on the new lathe. Youre videos are so good, so many tips and tricks and great jokes in-between.
I’m also here for this project. I’m very excited to watch you tear this lathe down and rebuild it!!!
I love the little graphic drawings of the internals of the lathe! It would be cool to include that more often!
Honestly, I am actually glad there is work to do and the lathe needs some TLC. Don't get me wrong I feel like I know you know what I mean. I am so looking forward to seeing you pull that thing apart and put it back together. Especially when it is out so much and we/you get to see the fruits of your labor. If it the runout wasn't as much the gain would be nominal but now we get to watch you bring this lathe back into spec and it will be a fun watch. You have a meticulous nature (being kind as I am sure it's a touch of OCD like most of us that call ourselves machinists) but this is going to be a really fun watch. Totally stoked to get started. So NEXT WEEK the tear down begins RIGHT! Come on now, we're hooked and counting on you every week to throw down and avoid the box of shame.....LOL well don't avoid feeding it all together now. That's educational too. All in fun I know how much work it takes to do weekly videos so don't stress and have a WONDERFUL holiday season.
Excellent video. Looking forward to watching the restoration of this lathe.
Your videos have me cackling all day long. I loved your workmanship. And it's super cool to see how you go about fixing problems. as a fellow machinist, I can relate to some of them.
Even as an well versed amateur woodworker I know that feeling. When I made my first and second router plane it was such a revelation. And the first router plane helped me make a better and more accurate second one…. Such a high!
Looking forward to seeing the repair of the new to you lathe in the coming weeks. Keep up the hard work.
Absolutely looking forward to seeing this restoration come together!
Please show every little detail and task done to restore this lathe! I love it
Looks like it's gonna be a busy year! Looking forward to it!
This is quite interesting and important topic, lathe straightness and perpendicularity. My first lathe was Atlas 10". And it is built so you can turn the bed around and use the rear end on the front, (it has both ways flat) when the ways gets worn out, you have to drill holes for the lead screw end support and mount the teeth rack on the other side, but you can do it. Imagine if Hardinge would have designed the ways in such way you could just flip the flat plate ways around...
On reversing your fixture - part of my job is in software realm. Sometimes I realize that for a couple of weeks I've been going on wrong direction. Then I'll take a deep breath and delete a lot code. It used to feel bad but nowadays it kind of feels nice - there was a mistake, I caught it before production and learned something I'll never forget.
I absolutely love this channel. Ive never machined anything but its great to see the processes and problems inbolved.
To overcoming new challenges and growing wisdom.
Salud my friend.
We were able to calibrate our granite and cast iron surface plates, thanks to an accurate CMM and gauge, which were calibrated externally. Building the 'map' of a large granite surface plate can be formidable, just like your lathe bed. In fact I think your lathe bed is harder than a surface plate, due to the wear patterns being more drastic on the lathe bed. So glad I found your channel, keep up the good work 👍
You mention a point there I didn't talk about. Apparently the lathe bed is hardened steel, so scraping may be a bit of a challenge 😅 I've got some ideas floating around though... Thanks!
Brilliant video, its been great keeping up with your channel and the amazing work you have done. Just a note: The lever indicators are calibrated to have a 12degree angle between the lever arm and the horizontal surface. Deviation away from the 12 degrees will give you a cosine error, exactly as you described.
Awesome video, keep up the good work
G
This video is so freaking good lol mainly because the lathe sitting in my garages bed is modeled the exact same way, and your information about "what makes a good spindle" helped me decide what mods to do for my spindle to make it more rigid. This ones gonna be rewatched quite a few times.. but im even more excited for the fixes video
hey! Looks like we might be tacking this one together then 😂
@@InheritanceMachining for space constraint and practicality reasons, i sold the lathe you helped me with the VFD on. It still literally brings me to tears thinking about it. However, the proceeds brought a Smithy 13x40 mill lathe in my home garage that i can use everyday and no traveling or stoppage from the wife.
Recently i noticed some play in the lathe spindle that causes chatter. Taking the gear train apart, the only thing that could possibly allow that kinda play is slop in the spindle bearings. I know using precision tapered roller bearings is the proper way to go, but the spindle wasnt designed for those (even though thats how they refer to those in the drawings). I know they cant be, because there is no way to preload them. Or if the nut that was on the back is how you do it, its not a bulky enough nut to properly put compression onto it. Anyways, with the pulley wheel and clutch mechanism on the spindle, it complicates modifications for improving performance.
However, now i have a DC motor on stand by from a past project that i am going to mount up top to direct drive the mill head so i can do away with the clutch and drive train parts off the lathe spindle that transfer power to mill head. This will open up the possibilities for modifications to the lathe spindle.
Im damned determined to make this Smithy perform as good as any shop mill and lathe since it will probably be a long time before i can expand my space and get a proper mill and lathe in the shop. Plus, it just sounds like a fun project. Now i just have to work up the courage to go into the youtube field with it and hopefully start making it where the wife dont have to work if she doesnt want to.
ngl, this is rapidly becoming my favorite channel, not just my favorite _machining_ channel...and you are even threatening "this old tony"'s perennial status as funniest machinist ever! *respect.*
Worked on multiple of these lathes, they're a blessing to work on!
Can’t wait to come along on this lathe journey with you!
"Just the tought of all the things I'm going to learn doing this gets me excited!"
This is what I think each time I have to machine a complex, uncommon and new part!❤
Altough I'm a cnc machinist, my dream is to have my own small workshop with conventional mill and lathe, just like yours!!
G-coding and CAM-ing sometimes just cuts the flavor of the work..(well, not always, but I think you know what I mean)😊
I do know what you mean 😁 I would be lying if I said I didn't add unnecessary complexity to all of my designs so that they would be fun to make! Good luck on building out your shop!
@InheritanceMachining thank you kindly Mr. Brandon! And good luck to you sir in this wonderful adventure you started!! You have no ideea how inspiring your videos are!!!
Can't wait for videos on making this lathe MINT!
Looking forward to it. Thanks, it will be a great project to follow.
Funny thing, I did the same thing this past summer and completely agree on how rewarding it is to rebuild a free machine tool. I was given an admittedly more humble south bend 9a from 1944 (yep, war iron) and rebuilt it from the ground up myself aside from hiring a pro the scrape it in. Next project is trying to figure out how to mount glass scales on it.
I dream of having an HLV and I cannot wait to follow along as you check out all the various ways the lathe has aged and you tuning it into fantastic shape. Thank you for sharing!
Thanks, Derek!
I like the iterative nature of your lathe rebuild--you don't have everything figured out, it's not easy, you're learning, you're embracing all the bits of suck along the way. Nice touch that you're using some of that advanced math as you're re-learning calculus a la Brilliant, that.
Hey, not sure if you’ll read this but check the spindle runout with a collet installed. This lathe uses angular contact roller bearings which require a preload to be accurate, just like tapered roller bearings. When a collet is installed it will pull the spindle nose into the body (provided you are using a drawbar which in this case is the only way to use it). Chuck up some ground round stock in a (preferably new or high quality) collet and check the runout and end play. If it all reads good then all you need to do is adjust preload, which would be WAY better than needing to replace the bearings, because the bearings on a hardinge are not cheap and replacing them without damaging anything else (or the bearings themselves) is a major challenge.
Excited to follow your restoration journey!
Thanks, Dude!
I completely understand your excitement of there being 'problems'. I love bringing older equipment back from the dead.
Looks like a fun project! I can't wait to come along for the ride and see how you fix it up.
I was given a very similar lathe and am very excited to see you bring that machine back to life.
Woohoo!!! Lathe restoration in multiple parts!!! Looking forward to the series!
Thanks for sharing 🇨🇦
😁 Thanks, Paul!
the videography of this video was super nice. I don't know if this was intentional or not but some shots really caught my eye. excited to see where this goes!
I like a lot how those video smell cuting oil and metal chips and still feel cosy. Nicely cinematographied and (re?)scripted. Some great pieces of well produced (just-on the-edge-of-hobby) mechanic's movies you got here.
I'm very excited to see You scraping. Looking forward to this revival with fervor!
Just a guess here but I bet there's either a preload adjustment for the spindle or shims that can be added/removed on the headstock and/or spindle bore. Brand new bearings might be pretty pricey at that diameter, so seeing how it behaves shimmed out might be your best first step
Hi eitan not a hardinge or its clones expert , but😁 if this machine is from the same factory as the Sharp or Kent versions, it uses a matched pair
of 7014cp4 angular contact bearings . the preload is in the matching , there is no adjustment to be done, as I said in an earlier comment they are either perfect or
broken.
Or the shaft nut came loose allowing the spindle shaft to move.
Or the outer bearing spacer retaining taper pin is loose and allowing the whole spindle assemble to move.
Speculation is fun ,Hopefully Brandon will show us what is actually wrong in the next video.
excellent method of checking the bed looking forward to how you go about the fix.
i wish i could like this video tenfold. Kudos, commendations and praises for sharing all of this!
Looking forward to see the whole process, greetings from South America.