big respect for the old men workers, actually its a golden opportunity for any young new worker to work and learn from all that experiences in that company
This is the second video I have watched in your series and enjoyed it immensely, it was very kind of the shops you visited to allow you in to film their operation, and I for one would like to thank them for their hospitality. I am a marine engineer these days but formerly owned a CNC engineering shop and had to make a lot of my own gauges for the different products we made. I can appreciate the skills and years of experience these firms have and understand very well the tolerances they work to, just wonderful. The average person has no understanding of what goes on in the world of manufacturing to bring them the products they take for granted.
Thanks Don, Glenn, and Reska for permitting us a peek into your ultra precision operation. I always learn a lot from Don's excellent videos and this one is exceptional. I believe it's correct that splines are capable of transferring more torque while allowing for temperature change and movement than any other method.
Their gear gages look similar in concept to something like a Starrett No. 1131 portable external thread gage I got (never used and only have one set of rollers) or the benchtop version of the same gage. You could see the sparkle in your eyes as you recalled your early days as a grinder's mate.
So many C.E Johansson comparators (Mikrokator) and their stands! Some of the best mechanical measuring instruments ever made! Very interesting video, thanks!
Thank you so much for the tour . Probably my favorite shop tour you have done so far . I always learn something new on each and every episode . Keep them coming .
Wow, very nice. Thanks Don. 0.1 mil, holding tolerances like that goes from hard to nearly impossible very quickly. Just consider, "steel" has a coefficient of thermal expansion of around 10 ppm/C. So a 1" thick/long part expands by 0.1 mil (1/10 of a thou) every 10 C in temperature rise. Think shop temperature in the morning vs the afternoon + heat from the grinding. Just terrific that there are true craftsmen out there that have mastered the science and art of this trade. I tip my hat to all you gentleman. Al
Effin' brilliant Don. Gages and gaging equipment doesn't grow on trees. I've used gages all my life usually in the form of a box that opened to reveal a precisely made do-dadi needed to check something and then return it to the shelf. Taft Pierce, what everall outfits a long ways away a place that churns out stuff that costs a fortune. Mystery stuff made on Mars for all us worker bees know Your video shows that gaging apparatus is made by dedicated folks who probably don't care if the other the other outfit's CEO has a fancier life stye. Well done. I hope the young people who see this take heart. Fine craftsmanship is a true vocation worthy of a life's work for those inclined. College for its own sake is a dead end. Any education in the end has to prepare the student for a healthy productive adulthood. We need machinists, welders, toomakers, pipe fitters, carpenters, farmers, loggers, miners,etc all in proportions to demand. A balance if you will that drives our economic engine so it hits equally on all cylinders. 10,000 extra highly educated "professionals" working selling fast food is a tragic waste when the skilled trades are represented by old farts working past retirement. Your depictions will, I fervently hope, attract a few younger guys to the precision trades
Man this channel will soon be in the top 10 of the machinist category.. the audience ain't big in comparison to anything else but still.. achievement is an achievement
:O noice stuff How do they account for the wheel getting smaller while grinding? Just experience + repeated checking + manual adjusting? That's awesome!
Mr Bailey, If at all possible, please consider doing a video on grinding wheels, their applications, their number designations, grits,... it would be a great video for those who grind and unfortunately there are no videos even from the grinding wheel manufacturers explaining these things. Thanks.
One of our videos addresses that but not to the detail you are requesting - "How to dress and balance a grinding wheel ." Follow the link ruclips.net/video/MofRhM_W-Vk/видео.html
+SuburbanTool Inc Thank you, that's very helpful. Keep up the good work. I also have a Suburban 6x12 Sine Plate with busted hinge rolls that i need to call you guys to get it sorted :)
How old is Don? If he was grinding gears and splines in the 50's he would have to be at least in his 70's. Looking good for a guy in his 70's or 80's. 60+ years in the business no wonder he is knowledgeable.
+SuburbanTool Inc Wow, congrats to Don! I cut a fair amount of gears and splines myself on the horizontal mill for one off applications so seeing those checkers was neat. It bothers me when I see people cut involute splines with a plain 45 or 60deg tool instead of with the proper special form but I see it done surprisingly often.
Cool video, wish we could have seen how they dress their wheels, and mooore grinding :) Do you know what their minimum diameter internal spline they can do? That rig was amazingly simple.
Re watching this video, been over a year since ive watched this one, just noticed the surface grinder they use in this shop is a reid just like yours don.
Thanks for the awesome video, Don. Really, thanks! :) You show us stuff here I don't think I'll ever see anywhere else. One question, please. How splines differ from other solutions, like keys, for example? What are the advantages/disadvantages of each? Thank you :)
+aryesegal1988 Splines, especially fine splines are capable of transmitting more torque thru the shaft than any other method. Keys and in particular key ways are only good for fairly low torque.
Splines are designed to transfer greater amounts of torque transfer than a keyway could. Keyways are generally designed for shearing not for total torque transfer.
Hey, I'm curious how they dress the grinding wheels to the correct involute shape. I had to have some splines made for my work recently and the math that goes into the involute shape is quite extensive.
Great video, Don. What craftsman they all are, working to a couple of tenths all day, every day. The only cloud on the horizon: just one machinist there is under 60. How are you coping with the retirement of the boomers in your work force? How about taking the viewers to a heat treating shop, and/or a powder metal shop? Tom
After I've made/machined/splined a part myself why would I need a "designer" to make a "spline gauge" to tell me that my work is "correct" and how its it NOT going to be "correct" if the "gauge" is "made" based upon my own part specs? The few times I've seen splines being "cut" they were being "hobbed" into shafts/gears just like gear teeth are. I hope these guys are better at making their "gages" than they are at spelling.
Stress the fact from a bench grinder, to your shop to Reska that a grinding wheel/stone is a "consumable" and should be treated as such. Don't wimp out on replacing them.More info on grades/type/uses/speeds/feeds/care of, would be helpful. Old guys with skills,rule.
I'm continually amazed that despite having been a diesel mechanic for 25+ years, a tech school student at the best tech school in the world with an excellent "machine tool" program at the time I was there for 21 months before that and having been in countless repair shops and quite a few machine shops throughout my life/career it wasn't until I started watching all these videos from "expert machinists" on RUclips that I saw a surface grinder in a machine shop period and I'd never considered a GRINDER a "machine tool" in my life. And I still don't. I'm pressure sure I've never seen a surface grinder in a machine shop because they're not machine tools and are only tools for achieving a "pretty" surface finish so a "machinist/machine shop" can more easily impress/sell a customer on the "quality" of his/its "machining" and "machine tools" and I've only ever needed parts milled to a certain surface finish for FUNCTION rather than "form" such as making sure its the right finish on a cylinder head "deck" to "hold" a head-gasket, etc. And I'm pretty sure I didn't/don't consider a surface grinder a "machine tool" regardless of what online "expert machinists" claim because...I've never seen one in the many good to excellent machine shops I've been in and can't imagine a GOOD machinist/machine shop having the "spare time" to jack around and waste all that time making parts "pretty" at the same time they're making them LESS FLAT than they were coming out of whatever REAL machine tool/process.
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big respect for the old men workers, actually its a golden opportunity for any young new worker to work and learn from all that experiences in that company
The shop tours you have taken us through have been really, really interesting. More, please. And please consider a tour of Suburban Tool as well...
Thanks we will keep them coming.
+SuburbanTool Inc
Ditto on that Bob. Love your field trip videos. Actually I love all your videos. Keep up the great work. :-)
This is the second video I have watched in your series and enjoyed it immensely, it was very kind of the shops you visited to allow you in to film their operation, and I for one would like to thank them for their hospitality. I am a marine engineer these days but formerly owned a CNC engineering shop and had to make a lot of my own gauges for the different products we made. I can appreciate the skills and years of experience these firms have and understand very well the tolerances they work to, just wonderful. The average person has no understanding of what goes on in the world of manufacturing to bring them the products they take for granted.
Amazing skills. I have been machining for over 30 years and understand the hardness of there job. These men are so unappreciated its all cnc nowadays.
As an aspiring machinist of 24, I find all of your videos fascinating, informative and entertaining. Keep up the good work guys!
Thank you
Thanks Don, Glenn, and Reska for permitting us a peek into your ultra precision operation. I always learn a lot from Don's excellent videos and this one is exceptional. I believe it's correct that splines are capable of transferring more torque
while allowing for temperature change and movement than any other method.
+Ellie Price Thank you for your comment.
Great video again so many different skill sets you could never learn them all
Thanks for the tour. It was nice for Reska to let you in and sharing what they do.
You're welcome. We too appreciate Reska's time.
Their gear gages look similar in concept to something like a Starrett No. 1131 portable external thread gage I got (never used and only have one set of rollers) or the benchtop version of the same gage.
You could see the sparkle in your eyes as you recalled your early days as a grinder's mate.
Wow appreciate your observation.
That was awesome, thanks Don and Glen
Great video. Thanks. I really enjoy your field trip videos and the rest too.
So many C.E Johansson comparators (Mikrokator) and their stands! Some of the best mechanical measuring instruments ever made! Very interesting video, thanks!
Thank you so much for the tour . Probably my favorite shop tour you have done so far . I always learn something new on each and every episode . Keep them coming .
Thank you we appreciate your comment.
Really enjoyed watching that,the skills those guys have to produce parts on such tight tolerences on manual machines is amazing.
Thank you
Wow, very nice. Thanks Don. 0.1 mil, holding tolerances like that goes from hard to nearly impossible very quickly. Just consider, "steel" has a coefficient of thermal expansion of around 10 ppm/C. So a 1" thick/long part expands by 0.1 mil (1/10 of a thou) every 10 C in temperature rise. Think shop temperature in the morning vs the afternoon + heat from the grinding. Just terrific that there are true craftsmen out there that have mastered the science and art of this trade. I tip my hat to all you gentleman.
Al
We agree with you whole heartedly.
Effin' brilliant Don. Gages and gaging equipment doesn't grow on trees. I've used gages all my life usually in the form of a box that opened to reveal a precisely made do-dadi needed to check something and then return it to the shelf. Taft Pierce, what everall outfits a long ways away a place that churns out stuff that costs a fortune. Mystery stuff made on Mars for all us worker bees know
Your video shows that gaging apparatus is made by dedicated folks who probably don't care if the other the other outfit's CEO has a fancier life stye.
Well done. I hope the young people who see this take heart. Fine craftsmanship is a true vocation worthy of a life's work for those inclined.
College for its own sake is a dead end. Any education in the end has to prepare the student for a healthy productive adulthood. We need machinists, welders, toomakers, pipe fitters, carpenters, farmers, loggers, miners,etc all in proportions to demand. A balance if you will that drives our economic engine so it hits equally on all cylinders.
10,000 extra highly educated "professionals" working selling fast food is a tragic waste when the skilled trades are represented by old farts working past retirement.
Your depictions will, I fervently hope, attract a few younger guys to the precision trades
Love your comment, right on.
Man this channel will soon be in the top 10 of the machinist category.. the audience ain't big in comparison to anything else but still.. achievement is an achievement
Thank you were going to keep working at it.
A very interesting tour! Thanks for sharing.
I enjoyed the visit and, mostly, learned lots about splines and gauging to precise tolerances...
Thanks
You're welcome
Specialized shops for spindles, now splines - who knew? I am sure learning a lot. Thanks for great video.
Thank you.
Brilliant tour. Thanks for the upload and thanks Don for your time
Nice tour. Your videos keep getting better with each new episode!
Thank you
Don was right. I had never seen this and am very thankful to you guys for doing it! Daniel
Thank you for watching.
Excellent tour, thanks for sharing!
You are welcome.
Thanks Mike. Awesome work you guys do there.
It truly is, it's great to see a place that offers a safe space for many different styles of projects.
Great video. I would love to see a field trip to a heat treatment facility
Heat treat thats on our list.
Good invaluable shop tour...
I love these videos.
I'm glad you enjoy them, thanks for watching.
Another great video!
:O noice stuff
How do they account for the wheel getting smaller while grinding? Just experience + repeated checking + manual adjusting? That's awesome!
Very interesting .Thanks for making video.
You are welcome.
Hey don. Nice video. Your every video is an epic for me. Really I learned a lot. Thanks for sharing.
Thanks Mike that was awesome
You are welcome.
Mr Bailey,
If at all possible, please consider doing a video on grinding wheels, their applications, their number designations, grits,... it would be a great video for those who grind and unfortunately there are no videos even from the grinding wheel manufacturers explaining these things.
Thanks.
One of our videos addresses that but not to the detail you are requesting - "How to dress and balance a grinding wheel ." Follow the link ruclips.net/video/MofRhM_W-Vk/видео.html
+SuburbanTool Inc Thank you, that's very helpful. Keep up the good work. I also have a Suburban 6x12 Sine Plate with busted hinge rolls that i need to call you guys to get it sorted :)
Hi Don, I love all of your video tours, could you make a tour on electrospinning production facilities, really appreciate.
we will look into it
muy bueno su video! le mandó Saludos desde Argentina.
I used work making splines, serrations and small gears, and I am pretty sure the GO / NO-GO gages came from this Company.
How old is Don? If he was grinding gears and splines in the 50's he would have to be at least in his 70's. Looking good for a guy in his 70's or 80's. 60+ years in the business no wonder he is knowledgeable.
+SuburbanTool Inc Wow, congrats to Don! I cut a fair amount of gears and splines myself on the horizontal mill for one off applications so seeing those checkers was neat. It bothers me when I see people cut involute splines with a plain 45 or 60deg tool instead of with the proper special form but I see it done surprisingly often.
Don
says thank you for your comment, he will be celebrating his 80th this year, and
happy to be here to share his knowledge and experience.
Very cool. Thank You.
Thank you for watching.
Cool video, wish we could have seen how they dress their wheels, and mooore grinding :) Do you know what their minimum diameter internal spline they can do? That rig was amazingly simple.
My guess would be around 3/4" to go any smaller is possible using EDM and Lapps.
Re watching this video, been over a year since ive watched this one, just noticed the surface grinder they use in this shop is a reid just like yours don.
Great!
Thanks for the awesome video, Don. Really, thanks! :) You show us stuff here I don't think I'll ever see anywhere else. One question, please. How splines differ from other solutions, like keys, for example? What are the advantages/disadvantages of each? Thank you :)
+aryesegal1988 Splines, especially fine splines are capable of transmitting more torque thru the shaft than any other method. Keys and in particular key ways are only good for fairly low torque.
Splines are designed to transfer greater amounts of torque transfer than a keyway
could. Keyways are generally designed for shearing not for total torque
transfer.
I see. Sounds logical, more surface area to hold onto. Thank you both for the reply. :)
Amazing
yea do a tour of your shop
Real good tour thanks
Hey, I'm curious how they dress the grinding wheels to the correct involute shape. I had to have some splines made for my work recently and the math that goes into the involute shape is quite extensive.
You are right.
Awesome
Great video, Don. What craftsman they all are, working to a couple of tenths all day, every day. The only cloud on the horizon: just one machinist there is under 60. How are you coping with the retirement of the boomers in your work force?
How about taking the viewers to a heat treating shop, and/or a powder metal shop?
Tom
Great suggestion, a heat treating shop/powder metal shop is on our list.
how do they grind the small internal gages, say 1" diameter or smaller?
My guess would be around 3/4" to go any smaller is possible using EDM and Lapps.
Fantastic video really enjoyed it , these skills will be lost soon and that's a shame
Lets hope you are wrong, but it doesn't look good.
Glad you enjoyed, lets hope its not lost.
Working to several tenths is greater precision than I prefer.
Index plates? we used optical dividing heads.
yup, another way to do it
The boss looks really nervous lol.
could be
Don, you're on the plant floor, where is your "Safety Glasses"?
You are absolutely right it wont happen again.
I bet a shaper could do some of the rough in faster than grinding.
shaper on a hardened piece?? I think you missed this detail :D It's hardened so either grind it or EDM :D
good for me to know the spline gages
Glad you were able to take something away from the video! Thanks for watching.
thumbs up,enjoyed
This should of had a million in 24
#grinden junkee
After I've made/machined/splined a part myself why would I need a "designer" to make a "spline gauge" to tell me that my work is "correct" and how its it NOT going to be "correct" if the "gauge" is "made" based upon my own part specs? The few times I've seen splines being "cut" they were being "hobbed" into shafts/gears just like gear teeth are. I hope these guys are better at making their "gages" than they are at spelling.
Stress the fact from a bench grinder, to your shop to Reska that a grinding wheel/stone is a "consumable" and should be treated as such. Don't wimp out on replacing them.More info on grades/type/uses/speeds/feeds/care of, would be helpful. Old guys with skills,rule.
you are telling me there is stone under that spinning tire????
My grandfather used to say if you can't make it then you can't complain you don't have it that becomes nationally important
I'm continually amazed that despite having been a diesel mechanic for 25+ years, a tech school student at the best tech school in the world with an excellent "machine tool" program at the time I was there for 21 months before that and having been in countless repair shops and quite a few machine shops throughout my life/career it wasn't until I started watching all these videos from "expert machinists" on RUclips that I saw a surface grinder in a machine shop period and I'd never considered a GRINDER a "machine tool" in my life. And I still don't. I'm pressure sure I've never seen a surface grinder in a machine shop because they're not machine tools and are only tools for achieving a "pretty" surface finish so a "machinist/machine shop" can more easily impress/sell a customer on the "quality" of his/its "machining" and "machine tools" and I've only ever needed parts milled to a certain surface finish for FUNCTION rather than "form" such as making sure its the right finish on a cylinder head "deck" to "hold" a head-gasket, etc. And I'm pretty sure I didn't/don't consider a surface grinder a "machine tool" regardless of what online "expert machinists" claim because...I've never seen one in the many good to excellent machine shops I've been in and can't imagine a GOOD machinist/machine shop having the "spare time" to jack around and waste all that time making parts "pretty" at the same time they're making them LESS FLAT than they were coming out of whatever REAL machine tool/process.
Really? Your mills can hold a tenth?