Shop vac 1/2 full of water with an attachment to hold it right below the grinding wheel will save your lathe from the majority of that dust. It’s too fine to all be caught by the towels. But a combination of the towels and a shop vac will do a better job. The water in the vac prevents any fire hazard issues with the sparks.
Beware that this trick is potentially dangerous with aluminum. Aluminum dust + water=hydrogen gas. Leave it sitting in your shop vac, and the next time you turn it on you get a hydrogen explosion.
@@InheritanceMachining I warn against going that deep, but yes. Square your squares if you must. This is inception level side project. Time moves at four times the rate of a typical side project. Tread lightly my friend.
I would go with prime symbols rather than exponents. It easily represents the depth of subproject in addition to the count of subprojects at the same depth.
Nice build! I would only make one suggestion ... upgrade your Brake Cable to a double coil spring ... it will eliminate possible coil tension. It's the standard design for flexible extensions for 1/4" socket sets. Plenty of torque in either direction, and perfect flexibility. Thanks for sharing 🇨🇦
An engineer, by definition, is a person who knows how to use technology to solve problems. It can't be done without teaching, or at least it can't be done well. You can't really know your subject if you can't explain it well enough to implement the solution. Our hero here, is an excellent teacher, despite being goofy as.
When adjusting the preload on the spindle, take into account the fact that the spindle and associated bearings will expand when running at 6000 rpm for a while.
good call. If I recall correctly it's sometimes necessary to adjust spindle preloads by monitoring operating temperatures. Too high a temperature means too tight and vice versa
@@InheritanceMachining Axial Preload is also the reassuring answer to your misgivings about applying axial thrust through the spindle bearings via the live centre support when you mounted the cartridge in the lathe chuck for polishing
OK, I've watched further on and you (as I expected) reached the same conclusion, but preload (on machine tool spindles generally but grinding spindles in particular) is not just intended to remove axial play. With angular contact bearings (and taper rollers) axial preload directly reduces elastic deflection under radial loading. In other words, snug is not enough: after all play is removed added tightening is required to induce "negative" axial clearance in oroer to produce stiffness in the radial direction. Anyone interested in learning about this could google SKF Bearing preload for a decent summary, but a rule of thumb which words for practical purposes with these two bearing types is to tighten axial preload sufficiently to cause a temperature rise (at or near the hottest of the bearing pair) of about 30 deg C (40 max) over ambient for lathe and milling machine spindles, and maybe half this much for grinding spindles (unless they're on a heavy machine where you'd maybe go to 75%). On a big machine it might take an hour to reach a steady reading, and that's the one you work to.
I learned many years ago that any UBG (used but good) machine can benefit from a careful disassembly, cleaning, inspection, and reassembly. The big plus is that you now know the machine much better, inside as well as out. Of course, any damaged or missing parts can be fixed or replaced, and any fine adjustments made as needed.
Are you aware how relaxing your videos are? Voice, music, shots, audio, all are very soothing to the ears and eye. Can watch these vids for hours. And your open approach to your mistakes and box of shame make appreciate my own errors a lot better as learning points instead of failures. Thank you❤
Using the screw to expand the pulley rather than close it is a brilliant decision. Fails safe, won't work loose, and has the potential to be more concentric. Little details make all the difference!
Well, he didn't... I mean, he didn't tear the spindle completely apart to clean the bearings and bearing surfaces, nor did he tear open the motor to clean it's bearings and bearing surfaces either... I'd say, he only ripped half of it apart when he COULD have gone sooooooo much farther... Who knows, now that he's fixed the live centers, completely tearing down and deburring/lubing/perfecting the ENTIRE spindle grinder will be the next video... 😄😁😆😅😂🤣
@@InheritanceMachining Would still be a good idea to check the condition of the brushes and the rotor. Best get on top of that now, than later when they're worn beyond repair. If you have enough motors to fix... maybe even consider a rotor lathe. They're really cute and small. ;)
I cannot tell you how much your channel means to me, watching you making old tools useful again and engineering beautiful parts. Thank you for your time and the entertaining video inserts. Chamfer on.
Love it. I scored a beautiful tool post grinder that perfectly fits my old 9" South Bend a few years back. Looked new in the metal case, along with all of the paperwork. I don't use it often, but it's great for those difficult jobs. Love the o-ring drive to true up the live center - very clever design!
Man! I just watched all of your videos and I'm begging you to continue with them! It's soooo pleasing and satisfying to watch you making tooling and projects. I can't wait for an update of all the things that have to be done to your small lathe! Keep up and good luck!
Yhea I literally have a play list of every video I go to sleep to every night as its so calming and satisfying watching him work and explain things and the fact he gets his obvious enthusiasm out but his voice still sounds calm is a genuine talent.
I'm 2 weeks into an Engineering (technical) course, in part inspired by watching your channel. The teachers love telling us how we won't be on the tools ourselves, so they've redesigned the course to minimize workshop time - as if it were a good thing. I've already got a damn degree in sociology and political science (a.k.a. advanced yelling at newspapers and underemployment). The entire reason I'm retraining is to chase after some of that sweet fulfillment that comes from identifying a problem, designing a solution and then - the crucial difference - making it a reality.
Mech Eng here, the decline in using equipment/machines in today's engineering curriculum is unfortunate. I went out of my way to learn more about it in college, but I've seen people get to industry clueless to manufacturing realities and not realize how bad their designs or prints are since they don't understand what will go into making it. Luckily RUclips is full of great channels like this to learn and grow, especially Brandon's work as he highlights his mistakes and that's when you learn the most. As you stated, one of my favorite things to do is identify a problem, theorize a solution, then create that solution with my hand. Restoring vintage tools in my spare time and building up a nice home shop also helps keep my mind sharp from a problem solving perspective. Good luck in your studies!
I experienced this same thing. No shop classes offered for mechanical engineering. It's resulting in design engineers not understanding machine limitations and tolerances and the price you pay for a fancy 5 axis part that's overcomplicated! God luck to you though. If your college has any clubs like FSAE/Formula Student, this is a great way to get some actual hands on problem solving and machining experience
@@InheritanceMachining no such luck on the formula student front, I'm in Australia studying through our Tafe system, whereas FS (and similar) is typically reserved for our universities. I don't have the math skills to go straight to a degree, so I'm pursuing an advanced diploma as an engineering technician/technologist, with an option to extend into a degree down the track. Conversely, I did a short course in industrial design a couple of years back, and spent about 8 hours a week in a workshop learning all manner of fabrication and conditioning processes.
@@InheritanceMachining Unfortunately, it's more likely we'll see a deeper dependency on automated fabrication QA checking than hands on experience to solve the issue.
@@InheritanceMachining I am in school for Mech Eng as a Tech and we are currently designing and building our own jigs for part production. I am glad my program has a focus on theoretical and practical Eng. When I do bridge over to Mech Eng to finish out the full PEng degree I think I will miss the machine shop time.
Actually, hopefully speaking for many others--yes, we really do want to see you take every nut and bolt out of your new-old tool post grinder for a complete rebuild. A number of said nuts and bolts (well, screws) look like they're begging for you to make something new on the lathe. And I'd love to see you match the paint job. It is a nice machine color after all.
The phrase, "As my (Grand)Dad used to say", is one of the best. Whenever it's used, the memories well up. Dad never got the tool post grinder he wanted, but this episode certainly makes up for it for me. Thanks for a great video !
Makes his special tools with other of his homemade special tools. All a feast for the eyes to follow. And the guy's humor knows no bounds. Wonderful. More of it. 🤩🤓
**Lumineux** - So we sent you a new electric toothbrush to try out, tell us what you think **IM** - It was great! Got all the oil and grime out from the nooks and crannies **Lumineux** - Excuse me? Can you run that past me again?
Hehe, yeah, I'd kinda like to to know how THAT marketing pitch went. "He did what? On a what? ... Okay, but did sales go up? Right. Tell R&D the next model will either be stainless, or battleship gray. And we need to offer brass and steel brushes too."
I used similar ones to scrub the painted fabric on a supercub airplane that had flipped upside down on a sand bar into willow bushes… was all green and brown, on white paint…it worked well to get down into the little spots in the fabric weave…
Daggum...HOURS and HOURS and HOURS of cleaning my M16A2 in the Marines back in the day...and I could have used a cordless sonic toothbrush! Sign me up!
When I was trying to figure out your what your picture was, I swore the groove was for an o-ring drive. I've seen similar setups on powered collet indexers used on surface grinders. I couldn't put it together... the hose clamp and "cable drive" are ingenious!
You have a real gem there. I worked for the Boeing company for 13 years and as modern as our shop was we still ran a LOT of old equipment such as tool post grinders, trur trace units on our Bridgeport mills etc and after years of use still would get the job done. That man was super nice to let that grinder go so be sure and properly thank him. Good job on the refurbishment...
If you haven't seen it already, MrCrispin has a great series of videos on setting up and using a tool post grinder. He used his to regrind the spindle taper on his lathe, as well as all his chucks.
I used one of these to make brass instrument bell mandrels on an old hydraulic tracer lathe! Many sparks, much struggle... Not what I thought I'd ever do as an engineer! Shout out to Conn-Selmer(Cleveland, OH), the last mass manufacturer of brass instruments in America!
You should build your own heat treat kiln! There are several build guides out there, using lid Co strollers etc. For a few hundred bucks you can build it instead of 2-3k for a new one. I would love to see the over the top machining and construction you would do to the housing :D
Being a machinist for 20 years, I understand your enthusiasm as I worked with these. 😀the quality of machines made in the 1940's-1960. I still love the older equipment!
Apparently the trick to carbide parting tools is to run the workpiece as fast as you can and take a really heavy cut, your colleague Clough42 recently did a video on this.
I don't watch Clough42, so I don't know what he did. I do know most people I see on YT do it wrong on a manual lathe. Parting tools are like any other tool, they need to be run at the correct feed/speed, which can be pretty hard to do manually. I always power feed mine at the same feed that I would face a part. Carbide inserts need far more tool pressure than HSS, so they are next to impossible to feed at the correct rate with out turning the RPM down way to low.
I just picked up a slightly smaller Dumore tool post grinder in much the same shape (wood case instead of metal) for $40 at an auction. About to do the same tear down/clean.
When I first saw this pop up in my feed I through the thumbnail was a skateboard truck and then was expecting a sick skateboard montage from IM. Not going to lie, I am a little disappointed there was no skateboarding BUT once again great video! (minus the lack of skateboarding)
You'll see what is a cleaning frenzy once he has to clean his lathe! 1 min of toolpost grinder use, 10 hours of lathe cleaning (that's using towels and rags).
Greetings, in my spare time when I rest after work, otherwise I am a car mechanic, I watch your clips, not that they are good but they are therapy, your dedication to every detail, I just watched 3 clips in a row and I have to reduce it to one a day because soon I will watch everything and be me wrong because I won't have anything to look at anymore, there is some magic in that iron, or I find myself loving the same thing, which is that a man creates something with his hands, it feeds the soul. I think that people today are unhappy because they don't know that feeling that we have, we artisans, turners, mechanics, good luck in life and work, long live
I very rarely ever subscribe to a channel in consideration that I’ve been working on several side projects all for one main project for the last several months, this dude just did it several times within one video, and this dude’s love for patina, I knew what I had to do.
Seeing something made in the home town I was raised in is a bit bitter sweet I’m happy you’re getting use out of it and hope it serves you well And it was most likely made in the 50s/60s Racine went to shit in the 70s
I enjoy watching your channel for the way you problem solve and apply those solutions. I am not an engineer of any kind. I am interested in the job at hand. A lot of the time I do not immediately understand. Listening to you, I can begin to put things together. I see why you enjoy doing it. Even when the solution escapes you there is that can do attitude. Before I retired that was the way I functioned. Issues were temporary, solutions were just thoughts away. Looking forward to the next video.
Thanks for sharing your knowledge. I always learn something. When setting the spindle on my tool post grinder for height and square I set the spindle between centers on the lathe and tighten down the tool post clamp on the grinder. Quick and accurate on two planes.
about 5 yrs ago some local guy advertised a bench grinder for $200. As soon as I saw it, I was on my way to buy it. And yes there it was... a Themac model 7 in mint condition, with all the accessories. And yes I use it! Your going to love the capabilities of that machine. My Themac has adjustable height so I use the tailstock live center on the quill shaft, and then adjust the other end of the quill to zero on the travel, takes about 2 minutes
I'd definitely replace that power cord on the tool post grinder. Or at least the electrical tape that looks to be exposing at least one of the actual wires! If just taping it up, I'd recommend self-vulcanizing silicone tape, it's not very expensive, works well for that sort of thing, 8kV rated, and has no adhesive residue because there's no adhesive.
Got a couple of electric motors from the same era as this grinder, and this is truly a "they don't make them like they used to" moment. Amazing how they were meant to be serviced, or at the very least lubricated, and means of doing so are right out in the open. Meanwhile it takes 30 minutes just to get to the bearings in a modern motor.
Sunday morning here in England , just walked off my full Irish breakfast with the dogs , coffee, inheritance video ,sweet.always feeling the level,of satisfaction using that rotary fixture and those trick old skool hot rod clamps . Wonderful.
Next time please just cut down the sides of the box and fold it away. I felt like I was about to watch someone die as you were trying to kick that empty box off the table
Looks like DuMore is still around and still making these tools with the same castings! New motors, and a shroud on the belt, but other than that, no changes.
It bodes well to the point of buying(or making) quality tools to help prevent the manufacturing of inaccurate junk. Especially if you have a business where customers depend on the accuracy of your product. Well done!
Nice. Your ingenuity is great to watch. Grinding wheels should have heavy paper washers under the support washer to reduce the possibility of the manufacturing errors leading to premature failure of the wheel in use.
Wow, 19:40 designed to last.. The belt slip and controllable friction preserve the precision of the secondary gear train. 👍🏻 A clever setup with that baseplate 90 to axis radius cutting jig. 🥇
It's best to run it and warm the bearings up before setting end float or preload. I've seen the spindle bearings in a freshly rebuilt machine seize as the end float was set by intuition when cold and as it warmed up it became zero
For me, this is the best video you’ve ever made. For a couple of reasons. 1) I love the side project inception. May I suggested you use nested indenting marks for nested side projects? E.g. side project 1a, 1b, 1ci, 1cii, 2, 3a, 3b… etc. the down side with this scheme is that you won’t necessarily know the magnitude of side project hydra up front. Good news is that you will when you come to edit the video. So it’ll work out. 2) this video proves that I’m right and my old boss was wrong when it comes to assembling precision rotating equipment. Getting rid of annoying runout can be taken out post assembly. If you’re interested, my old boss insisted that if you make everything right in the first place, then you wouldn’t get runout at the end. But the tolerances to do so become impractical very quickly when you’re looking for a circular runout of < 5um coming off a diameter around 10x the bearing shaft the diameter. 3) you’re ingenious life centre driving mechanism solves a problem I’ve had for a while when trying to achieve exactly the thing you’re after on an assembled rotating shaft - zero runout. I have since left the company, so unfortunately they won’t get the benefit of my newly found wisdom though. C’est la vie. The only point I’d like to pick you up on is that the first lesson you learn as a design engineer is that fewer parts (great grammar btw) is always the fastest way to reduce costs and set up time; for a small batch, absolutely. However the economics of both drastically change with volume, material format and availability, and tooling availability. If you’re making 1000’s of those bushings, I’m sure you’d quickly be able to see that churning out 2 parts (instead of the one combo part) would be super quick and cheaper from bar stock close to their final size rather than creating all those chips. That’s just money on the floor in a larger scale operation. However, turning those 2 parts into 1 makes great sense for reducing assembly complexity. And that is always the lesson no matter what the build volume is. Great vids, loving your work. More please.
Just got done building a small driveshaft on my channel without any of your precision...so I totally get how valuable it is to get your equipment as accurate as possible...I am stuck always with some small runout, or lack of concentricity, or outta square etc...nice addition
You need a blotter between the sides of the wheel and the metal arbors. You can cut them yourself out of heavy cardstock. They average out the points of contact between the irregular surface of the wheel and the arbor, absorb stress rises in the high spots against the wheel, and also act to help the arbor grip the wheel.
I greatly enjoyed watching this video. The fact that the DuMore was made back in the 50's shows that this isn't a new problem with lathes. Your method of utilization was very clever.
Best engineering channel (best overall channel in my opinion) on RUclips. I look forward to every video that's posted and often re-watch old videos instead of hunting for other channels.
Man I have to say. I find myself getting really excited when I see you have come out with a new video. You and Tony's machining entertainment are a huge joy for me. I always look forward to a new video. Can't wait for the next one. So much fun to watch. Not the chips for me. It the setup and figuring things out. And I really enjoy seeing when you design something new. It always impresses the hell out of me. I can't Thank you! Enough.
A real tool post grinder! Was on my wish list for a couple of years. I finally made a crude one that has worked OK. But the pneumatic die grinder life may not be great & I have to take very light cuts. Put a smaller wheel on and do some internal grinding.
I really enjoy reading the comments that start off with " I'm a new engineering student and just discovered your channel... you are such an inspiration!
The way i mount mine and set center at same time is to hang the grinder between centers using the centers on the grinder spindle and then adjust the tool post mount and wam bam thank you ma'am done in a couple of min. Obviously this procedure is useless if your tailstock is out of alignment,lol. Also leave the belt off untill the grinder in mounted and it gives mor room for the nut adjustment.Great video! Nice grinder!
Im 24 years old and have been a mechanical freek since i was 12 . I used to watch videos of perfectionist machinist like this Man and thought that all machinist worked to that standard. Now ive been working as a machinist for more than a year and the sad reallity for me was to find out that time is more valuable than quality and precision . But still try to keep motivated and make things to the highest standard posible whenever i can. Videos like this help to stay motivated.
That grinder has the best patina of anything I’ve seen this year. I have a smaller, newer, less awesome version. Only had occasion to use it once. But glad I have it.
Man, this old machines are something else. Things made in the 50 to 70's are beautiful and have a especial vibe. Or Maybe is just a nostalgic thing inside me
I have this fixture for a tool post grinder that dresses the wheel to the proper angles for thread grinding. Its pretty neat in that it uses 2 diamonds dressers but both diamonds are passed over the wheel all in one motion of the small lever.
Use my link amazon.lumineuxhealth.com/amazon/InheritanceMachining to get $10 off your Lumineux Electric Toothbrush on Amazon!
You could do a whole video on refurbishing this to better than brand new. Polished and painted.. Or send it to @TysyTube
v amusing approach to this sponsorship :)
2h ago ??
Comment 23h ago ??
Wow 15000 rpm in the '50's , freaking awesome piece of machinery ☆☆☆☆☆
The Hotrod of your shop imo
Grtz from the netherlands Johny geerts
Shop vac 1/2 full of water with an attachment to hold it right below the grinding wheel will save your lathe from the majority of that dust. It’s too fine to all be caught by the towels. But a combination of the towels and a shop vac will do a better job. The water in the vac prevents any fire hazard issues with the sparks.
New side project, wheel shroud with a vacuum attachment
Indeed, glass ornaments artists use them to get out glass particles all the time.
Beware that this trick is potentially dangerous with aluminum. Aluminum dust + water=hydrogen gas. Leave it sitting in your shop vac, and the next time you turn it on you get a hydrogen explosion.
If possible would a "dust collector" be better than a shop vac as long as you still address the fire hazard?
@@DoubleD132 With a wet cyclone separator? :D
Side projects of side projects are denoted by an exponent. Squared, cube, etc. Beautifully done once again.
Ah, there it is. So if it's multi-layered so the exponents get exponents as well?
@@InheritanceMachining I warn against going that deep, but yes. Square your squares if you must. This is inception level side project. Time moves at four times the rate of a typical side project. Tread lightly my friend.
I would go with prime symbols rather than exponents. It easily represents the depth of subproject in addition to the count of subprojects at the same depth.
@@quanqued ya learn something new every day. I’m inclined to agree with your opinion.
Now who watches this channel didn't know that he would escalate quickly and disassemble the new tool from the moment the box opened. 😂
I saw the disassembly coming, but the segue to the sponsor segment was a funny surprise.
Him: Now I'm not gonna go too crazy here and tear this thing down to every nut and bolt...
me: 🤨
Him: tears it down to every nut and bolt
me: 😌
"Wipes down fine. Let's polish it on the lathe." 😂😂😂
As soon as he got a new "used machine" I was like Teardown coming!😂
I thought it was going to get a coat of paint too
Nice build!
I would only make one suggestion ... upgrade your Brake Cable to a double coil spring ... it will eliminate possible coil tension. It's the standard design for flexible extensions for 1/4" socket sets. Plenty of torque in either direction, and perfect flexibility.
Thanks for sharing 🇨🇦
One thing that makes me keep coming back to this channel is your ability to calmly command attention and explain things at ground level.
thank you 🙏 I put a lot of thought into the explanations
An engineer, by definition, is a person who knows how to use technology to solve problems. It can't be done without teaching, or at least it can't be done well. You can't really know your subject if you can't explain it well enough to implement the solution. Our hero here, is an excellent teacher, despite being goofy as.
@@InheritanceMachiningas a person who recently started working in a machine shop recently(partially inspired by you) i absolutely adore youre channel
When adjusting the preload on the spindle, take into account the fact that the spindle and associated bearings will expand when running at 6000 rpm for a while.
good call. If I recall correctly it's sometimes necessary to adjust spindle preloads by monitoring operating temperatures. Too high a temperature means too tight and vice versa
@@InheritanceMachining Axial Preload is also the reassuring answer to your misgivings about applying axial thrust through the spindle bearings via the live centre support when you mounted the cartridge in the lathe chuck for polishing
OK, I've watched further on and you (as I expected) reached the same conclusion, but preload (on machine tool spindles generally but grinding spindles in particular) is not just intended to remove axial play.
With angular contact bearings (and taper rollers) axial preload directly reduces elastic deflection under radial loading.
In other words, snug is not enough: after all play is removed added tightening is required to induce "negative" axial clearance in oroer to produce stiffness in the radial direction.
Anyone interested in learning about this could google SKF Bearing preload for a decent summary, but a rule of thumb which words for practical purposes with these two bearing types is to tighten axial preload sufficiently to cause a temperature rise (at or near the hottest of the bearing pair) of about 30 deg C (40 max) over ambient for lathe and milling machine spindles, and maybe half this much for grinding spindles (unless they're on a heavy machine where you'd maybe go to 75%). On a big machine it might take an hour to reach a steady reading, and that's the one you work to.
That live center drive setup is pure genius.
🤓
Gosh, isn't it. That's a proper hacker mentality: lateral thinking. Absolutely love it.
I learned many years ago that any UBG (used but good) machine can benefit from a careful disassembly, cleaning, inspection, and reassembly. The big plus is that you now know the machine much better, inside as well as out. Of course, any damaged or missing parts can be fixed or replaced, and any fine adjustments made as needed.
To me, its about the journey. All the side turns and alley ways just make it that much more fun and interesting, edgumacatin' before ya know it.
Are you aware how relaxing your videos are?
Voice, music, shots, audio, all are very soothing to the ears and eye. Can watch these vids for hours.
And your open approach to your mistakes and box of shame make appreciate my own errors a lot better as learning points instead of failures.
Thank you❤
Using the screw to expand the pulley rather than close it is a brilliant decision. Fails safe, won't work loose, and has the potential to be more concentric. Little details make all the difference!
Those are all pluses but the real reason i did that was for a low profile approach since there is no screw head!
"I won't disassemble this tool down to its nuts and bolts." Yeah right, we know you enough about that. 😂
You don't know me! 😂
Well, he didn't...
I mean, he didn't tear the spindle completely apart to clean the bearings and bearing surfaces, nor did he tear open the motor to clean it's bearings and bearing surfaces either...
I'd say, he only ripped half of it apart when he COULD have gone sooooooo much farther...
Who knows, now that he's fixed the live centers, completely tearing down and deburring/lubing/perfecting the ENTIRE spindle grinder will be the next video...
😄😁😆😅😂🤣
@@InheritanceMachining Would still be a good idea to check the condition of the brushes and the rotor. Best get on top of that now, than later when they're worn beyond repair. If you have enough motors to fix... maybe even consider a rotor lathe. They're really cute and small. ;)
Painting it next video.
Rumors say that laptop is still sitting on the garbage can to this day :(
😂😂😂😂😂😂❤❤❤❤❤
lol.
but also 17:05
I cannot tell you how much your channel means to me, watching you making old tools useful again and engineering beautiful parts. Thank you for your time and the entertaining video inserts. Chamfer on.
Always my pleasure! And thanks for always being here!
Love it. I scored a beautiful tool post grinder that perfectly fits my old 9" South Bend a few years back. Looked new in the metal case, along with all of the paperwork. I don't use it often, but it's great for those difficult jobs. Love the o-ring drive to true up the live center - very clever design!
Nice! I think (hope) this tool will become invaluable for me. Especially given all the tooling I tent to make (and should have hardened) 😂
Man! I just watched all of your videos and I'm begging you to continue with them! It's soooo pleasing and satisfying to watch you making tooling and projects. I can't wait for an update of all the things that have to be done to your small lathe!
Keep up and good luck!
No doubt I'll be sharing everything about that lathe haha thanks for following along so closely!
Yhea I literally have a play list of every video I go to sleep to every night as its so calming and satisfying watching him work and explain things and the fact he gets his obvious enthusiasm out but his voice still sounds calm is a genuine talent.
I'm 2 weeks into an Engineering (technical) course, in part inspired by watching your channel. The teachers love telling us how we won't be on the tools ourselves, so they've redesigned the course to minimize workshop time - as if it were a good thing. I've already got a damn degree in sociology and political science (a.k.a. advanced yelling at newspapers and underemployment). The entire reason I'm retraining is to chase after some of that sweet fulfillment that comes from identifying a problem, designing a solution and then - the crucial difference - making it a reality.
Mech Eng here, the decline in using equipment/machines in today's engineering curriculum is unfortunate. I went out of my way to learn more about it in college, but I've seen people get to industry clueless to manufacturing realities and not realize how bad their designs or prints are since they don't understand what will go into making it. Luckily RUclips is full of great channels like this to learn and grow, especially Brandon's work as he highlights his mistakes and that's when you learn the most. As you stated, one of my favorite things to do is identify a problem, theorize a solution, then create that solution with my hand. Restoring vintage tools in my spare time and building up a nice home shop also helps keep my mind sharp from a problem solving perspective. Good luck in your studies!
I experienced this same thing. No shop classes offered for mechanical engineering. It's resulting in design engineers not understanding machine limitations and tolerances and the price you pay for a fancy 5 axis part that's overcomplicated! God luck to you though. If your college has any clubs like FSAE/Formula Student, this is a great way to get some actual hands on problem solving and machining experience
@@InheritanceMachining no such luck on the formula student front, I'm in Australia studying through our Tafe system, whereas FS (and similar) is typically reserved for our universities. I don't have the math skills to go straight to a degree, so I'm pursuing an advanced diploma as an engineering technician/technologist, with an option to extend into a degree down the track. Conversely, I did a short course in industrial design a couple of years back, and spent about 8 hours a week in a workshop learning all manner of fabrication and conditioning processes.
@@InheritanceMachining Unfortunately, it's more likely we'll see a deeper dependency on automated fabrication QA checking than hands on experience to solve the issue.
@@InheritanceMachining I am in school for Mech Eng as a Tech and we are currently designing and building our own jigs for part production. I am glad my program has a focus on theoretical and practical Eng. When I do bridge over to Mech Eng to finish out the full PEng degree I think I will miss the machine shop time.
Actually, hopefully speaking for many others--yes, we really do want to see you take every nut and bolt out of your new-old tool post grinder for a complete rebuild. A number of said nuts and bolts (well, screws) look like they're begging for you to make something new on the lathe. And I'd love to see you match the paint job. It is a nice machine color after all.
The phrase, "As my (Grand)Dad used to say", is one of the best. Whenever it's used, the memories well up. Dad never got the tool post grinder he wanted, but this episode certainly makes up for it for me. Thanks for a great video !
They have a tendency to stick with you that's for sure 😁 Thanks!
Makes his special tools with other of his homemade special tools. All a feast for the eyes to follow. And the guy's humor knows no bounds. Wonderful. More of it. 🤩🤓
**Lumineux** - So we sent you a new electric toothbrush to try out, tell us what you think
**IM** - It was great! Got all the oil and grime out from the nooks and crannies
**Lumineux** - Excuse me? Can you run that past me again?
Hehe, yeah, I'd kinda like to to know how THAT marketing pitch went.
"He did what? On a what? ... Okay, but did sales go up? Right. Tell R&D the next model will either be stainless, or battleship gray. And we need to offer brass and steel brushes too."
I mean... It's actually a pretty great use case for a sonic toothbrush
I used similar ones to scrub the painted fabric on a supercub airplane that had flipped upside down on a sand bar into willow bushes… was all green and brown, on white paint…it worked well to get down into the little spots in the fabric weave…
I might be able to convince them of this!@@somebodyelse6673
Daggum...HOURS and HOURS and HOURS of cleaning my M16A2 in the Marines back in the day...and I could have used a cordless sonic toothbrush!
Sign me up!
Absolutely right. Repainting that beauty would be a crime against huma...machinity!
😂 Im gonna need to remember that one
When I was trying to figure out your what your picture was, I swore the groove was for an o-ring drive. I've seen similar setups on powered collet indexers used on surface grinders. I couldn't put it together... the hose clamp and "cable drive" are ingenious!
That's exactly where I got the idea from!
Easily one of the more entertaining and educational engineering channels. Also the editing work your putting in these days is top notch! Thank you! 😁
I believe credit for the editing goes to his other half.
Indeed it does!@@derschwartzadder
My pleasure! Thank you for being here!
You have a real gem there. I worked for the Boeing company for 13 years and as modern as our shop was we still ran a LOT of old equipment such as tool post grinders, trur trace units on our Bridgeport mills etc and after years of use still would get the job done. That man was super nice to let that grinder go so be sure and properly thank him. Good job on the refurbishment...
You are a genius!!! The way you transmit movement to the tailstock is amazing. Good job man!
I have my rare moments haha thanks!
Totally agreed!
My two favorite RUclips channels for machinist work. CEE Engineering and Inheritance Machining. Both are top notch.
Need to sort the cable out though, my OCD was off the charts looking at the tape round the switch. Lovely work as always, love this channel
If you haven't seen it already, MrCrispin has a great series of videos on setting up and using a tool post grinder. He used his to regrind the spindle taper on his lathe, as well as all his chucks.
For additional points in the overengineered category you could have included an oiling port in between the bushings in the tensioning device.
I used one of these to make brass instrument bell mandrels on an old hydraulic tracer lathe! Many sparks, much struggle... Not what I thought I'd ever do as an engineer!
Shout out to Conn-Selmer(Cleveland, OH), the last mass manufacturer of brass instruments in America!
MOM! MOM! Inheritance Machning uploaded a new video. I CAN`T GO TO THE RESTAURANT WITH YOU!!! (Best afternoon experience)
invite Mom to watch the vid with you
@@NickiRusin why haven`t I thought about that.
take video to restaurant, profit.
Yes! The perfect afternoon entertainment is here!
Like you said, that tool is a game-changer. Congrats on you new acquisition.
All the possibilities 🤯 thanks
You should build your own heat treat kiln! There are several build guides out there, using lid Co strollers etc. For a few hundred bucks you can build it instead of 2-3k for a new one. I would love to see the over the top machining and construction you would do to the housing :D
Dumore post grinders is still around. They go for approximately 3200$ - 4000$ 1/2hp to 3hp
We had the same model Dumore Tool post grinder. We even had an extra long spindle for I D grinding. That one spindle was like close to 10,000 dollars.
amazing work Brandon, happy to see all your live centres in functionally use
Thanks man!
I love when he uses his previously made tools. Like it is all one big story.
Being a machinist for 20 years, I understand your enthusiasm as I worked with these. 😀the quality of machines made in the 1940's-1960. I still love the older equipment!
5:25 if you give a mouse a cookie...
Hey Nathan, good job on the packaging.
Apparently the trick to carbide parting tools is to run the workpiece as fast as you can and take a really heavy cut, your colleague Clough42 recently did a video on this.
I don't watch Clough42, so I don't know what he did. I do know most people I see on YT do it wrong on a manual lathe.
Parting tools are like any other tool, they need to be run at the correct feed/speed, which can be pretty hard to do manually. I always power feed mine at the same feed that I would face a part. Carbide inserts need far more tool pressure than HSS, so they are next to impossible to feed at the correct rate with out turning the RPM down way to low.
I love the attention to detail! Awesome work! This channel has jumped right to the top of my list of "can't wait for the next one!"
Thank you!!
I just picked up a slightly smaller Dumore tool post grinder in much the same shape (wood case instead of metal) for $40 at an auction. About to do the same tear down/clean.
When I first saw this pop up in my feed I through the thumbnail was a skateboard truck and then was expecting a sick skateboard montage from IM.
Not going to lie, I am a little disappointed there was no skateboarding BUT once again great video! (minus the lack of skateboarding)
that is something you defintiely dont want to see. unless you like watching someone fall a lot is what you like 😂
I thought the same!
Actually a good sponsor mention. Want one.Why don't they make grinders like this now. The bearing preload mechanism is genius.
I knew it would escalate to a cleaning frenzy and it was absolutely the right decision
You'll see what is a cleaning frenzy once he has to clean his lathe! 1 min of toolpost grinder use, 10 hours of lathe cleaning (that's using towels and rags).
Greetings, in my spare time when I rest after work, otherwise I am a car mechanic, I watch your clips, not that they are good but they are therapy, your dedication to every detail, I just watched 3 clips in a row and I have to reduce it to one a day because soon I will watch everything and be me wrong because I won't have anything to look at anymore, there is some magic in that iron, or I find myself loving the same thing, which is that a man creates something with his hands, it feeds the soul. I think that people today are unhappy because they don't know that feeling that we have, we artisans, turners, mechanics, good luck in life and work, long live
Your work is inspiring. You don’t sugarcoat shit at all. Thank you. Great video as always 😅
😁 thanks, Terence
Sugarcoated Shit…. Worst 1970’s breakfast cereal ever! 😂
As a design engineer myself, I loved hearing your comment about making them more efficient and reducing cost!
Thank you for your continuous healing content. It has helped make the engineer our of me i have always wanted to be. Scientist even ❤❤
I very rarely ever subscribe to a channel in consideration that I’ve been working on several side projects all for one main project for the last several months, this dude just did it several times within one video, and this dude’s love for patina, I knew what I had to do.
Seeing something made in the home town I was raised in is a bit bitter sweet
I’m happy you’re getting use out of it and hope it serves you well
And it was most likely made in the 50s/60s
Racine went to shit in the 70s
DuMore is still in business, but I don't know if they are in Racine still.
@@InheritanceMachining the Racine location closed in the 90s unfortunately
They are still up north in Mauston though
the solution to drive the live center just blew my mind, so smart !
The main question has to be who keeps setting fire to your mail? 0:16
I love see old tools like that still in use. And getting the respect they deserve!
MOOOOOOOOOOOOOOOOM WE ARE (voice trailing off in the distance) GOIIIiiing machiiiiiniiiiing
I enjoy watching your channel for the way you problem solve and apply those solutions. I am not an engineer of any kind. I am interested in the job at hand. A lot of the time I do not immediately understand. Listening to you, I can begin to put things together. I see why you enjoy doing it. Even when the solution escapes you there is that can do attitude. Before I retired that was the way I functioned. Issues were temporary, solutions were just thoughts away. Looking forward to the next video.
I saw that coming.
Thanks for sharing your knowledge. I always learn something. When setting the spindle on my tool post grinder for height and square I set the spindle between centers on the lathe and tighten down the tool post clamp on the grinder. Quick and accurate on two planes.
Every IM video: *_IT'S OUT OF ALIGNMENT_*
What can I say... I commend your patience.
😂
about 5 yrs ago some local guy advertised a bench grinder for $200. As soon as I saw it, I was on my way to buy it. And yes there it was... a Themac model 7 in mint condition, with all the accessories. And yes I use it! Your going to love the capabilities of that machine. My Themac has adjustable height so I use the tailstock live center on the quill shaft, and then adjust the other end of the quill to zero on the travel, takes about 2 minutes
Please replace the power cord and switch!!!!!!!!!!!!!
At the minimum get some heat shrink tubing and replace the electrical tape. I hate electrical tape as it leave a gummy residue.
I'd definitely replace that power cord on the tool post grinder. Or at least the electrical tape that looks to be exposing at least one of the actual wires! If just taping it up, I'd recommend self-vulcanizing silicone tape, it's not very expensive, works well for that sort of thing, 8kV rated, and has no adhesive residue because there's no adhesive.
"I'm not gonna tear this thing apart just to clean it"
Proceeds to tear it apart just to clean it.
Got a couple of electric motors from the same era as this grinder, and this is truly a "they don't make them like they used to" moment. Amazing how they were meant to be serviced, or at the very least lubricated, and means of doing so are right out in the open. Meanwhile it takes 30 minutes just to get to the bearings in a modern motor.
No! You cant just drop a video simultaneously with "I did a thing"! Now i dont know what to watch first :)
no way i had the exact same problem
Sunday morning here in England , just walked off my full Irish breakfast with the dogs , coffee, inheritance video ,sweet.always feeling the level,of satisfaction using that rotary fixture and those trick old skool hot rod clamps . Wonderful.
Theres something so magical and satisfying about cleaning up old tools. I find older tools seem to have more craftsmanship gone into them.
Next time please just cut down the sides of the box and fold it away. I felt like I was about to watch someone die as you were trying to kick that empty box off the table
I love that your side projects and tools all have such a high finish. Clickspringesque!
Finally sound effects on the side project counter. I can now sleep at night!
😂 shoulda said something!
Looks like DuMore is still around and still making these tools with the same castings! New motors, and a shroud on the belt, but other than that, no changes.
If I was the person who made this tool +70 years ago I for sure would appreciate this. Our care and use of old machines honors their work and efforts.
I've used the same grinder many times and it has saved my butt every time. it's nice to have friends with nice tools.
It bodes well to the point of buying(or making) quality tools to help prevent the manufacturing of inaccurate junk. Especially if you have a business where customers depend on the accuracy of your product. Well done!
Nice. Your ingenuity is great to watch.
Grinding wheels should have heavy paper washers under the support washer to reduce the possibility of the manufacturing errors leading to premature failure of the wheel in use.
Wow, 19:40 designed to last.. The belt slip and controllable friction preserve the precision of the secondary gear train. 👍🏻 A clever setup with that baseplate 90 to axis radius cutting jig. 🥇
It's best to run it and warm the bearings up before setting end float or preload. I've seen the spindle bearings in a freshly rebuilt machine seize as the end float was set by intuition when cold and as it warmed up it became zero
I do appreciate you NOT re-painting the whole thing, unlike some other hand tool rescue channels we could mention...
A beautifully over engineered solution to the centre grinding problem. Loved it. Thanks for sharing 👍 🇬🇧
I love seeing old tools get a new life. Love all the side projects you get into. Awesome job!
For me, this is the best video you’ve ever made. For a couple of reasons. 1) I love the side project inception. May I suggested you use nested indenting marks for nested side projects? E.g. side project 1a, 1b, 1ci, 1cii, 2, 3a, 3b… etc. the down side with this scheme is that you won’t necessarily know the magnitude of side project hydra up front. Good news is that you will when you come to edit the video. So it’ll work out.
2) this video proves that I’m right and my old boss was wrong when it comes to assembling precision rotating equipment. Getting rid of annoying runout can be taken out post assembly. If you’re interested, my old boss insisted that if you make everything right in the first place, then you wouldn’t get runout at the end. But the tolerances to do so become impractical very quickly when you’re looking for a circular runout of < 5um coming off a diameter around 10x the bearing shaft the diameter.
3) you’re ingenious life centre driving mechanism solves a problem I’ve had for a while when trying to achieve exactly the thing you’re after on an assembled rotating shaft - zero runout. I have since left the company, so unfortunately they won’t get the benefit of my newly found wisdom though. C’est la vie.
The only point I’d like to pick you up on is that the first lesson you learn as a design engineer is that fewer parts (great grammar btw) is always the fastest way to reduce costs and set up time; for a small batch, absolutely. However the economics of both drastically change with volume, material format and availability, and tooling availability. If you’re making 1000’s of those bushings, I’m sure you’d quickly be able to see that churning out 2 parts (instead of the one combo part) would be super quick and cheaper from bar stock close to their final size rather than creating all those chips. That’s just money on the floor in a larger scale operation.
However, turning those 2 parts into 1 makes great sense for reducing assembly complexity. And that is always the lesson no matter what the build volume is.
Great vids, loving your work. More please.
I'm looking forward to seeing how your shop grows and changes over the years. Hopefully there's decades worth of material yet to come😊
Hand Tool Rescue would be very happy with your work on that grinder.
Just got done building a small driveshaft on my channel without any of your precision...so I totally get how valuable it is to get your equipment as accurate as possible...I am stuck always with some small runout, or lack of concentricity, or outta square etc...nice addition
You need a blotter between the sides of the wheel and the metal arbors. You can cut them yourself out of heavy cardstock. They average out the points of contact between the irregular surface of the wheel and the arbor, absorb stress rises in the high spots against the wheel, and also act to help the arbor grip the wheel.
Have we given praise to the fantastic closed captioning of each video?!
I just love the descriptions of sounds. :)
I greatly enjoyed watching this video. The fact that the DuMore was made back in the 50's shows that this isn't a new problem with lathes. Your method of utilization was very clever.
Way to go Nathan! Thanks for sending this over because we all get a cool video to watch because of you!
Best engineering channel (best overall channel in my opinion) on RUclips. I look forward to every video that's posted and often re-watch old videos instead of hunting for other channels.
Watching this again i just noticed two stickers from manufacturers im big fans of. Glad to see a fellow fan of the loud machines.
That is one of the coolest things about tool and die people. they always try to make things better and help others.
Man I have to say. I find myself getting really excited when I see you have come out with a new video. You and Tony's machining entertainment are a huge joy for me. I always look forward to a new video. Can't wait for the next one. So much fun to watch. Not the chips for me. It the setup and figuring things out. And I really enjoy seeing when you design something new. It always impresses the hell out of me. I can't Thank you! Enough.
A real tool post grinder! Was on my wish list for a couple of years. I finally made a crude one that has worked OK. But the pneumatic die grinder life may not be great & I have to take very light cuts. Put a smaller wheel on and do some internal grinding.
I really enjoy reading the comments that start off with
" I'm a new engineering student and just discovered your channel... you are such an inspiration!
The way i mount mine and set center at same time is to hang the grinder between centers using the centers on the grinder spindle and then adjust the tool post mount and wam bam thank you ma'am done in a couple of min. Obviously this procedure is useless if your tailstock is out of alignment,lol. Also leave the belt off untill the grinder in mounted and it gives mor room for the nut adjustment.Great video! Nice grinder!
Im 24 years old and have been a mechanical freek since i was 12 . I used to watch videos of perfectionist machinist like this Man and thought that all machinist worked to that standard. Now ive been working as a machinist for more than a year and the sad reallity for me was to find out that time is more valuable than quality and precision . But still try to keep motivated and make things to the highest standard posible whenever i can. Videos like this help to stay motivated.
I agree, it's better to get good and then gradually become speedy than to focus on speed from day one and as a result never reach your potential.
That grinder has the best patina of anything I’ve seen this year. I have a smaller, newer, less awesome version. Only had occasion to use it once. But glad I have it.
Man, this old machines are something else. Things made in the 50 to 70's are beautiful and have a especial vibe. Or Maybe is just a nostalgic thing inside me
I have this fixture for a tool post grinder that dresses the wheel to the proper angles for thread grinding. Its pretty neat in that it uses 2 diamonds dressers but both diamonds are passed over the wheel all in one motion of the small lever.