Always good to get in the shop with Squatch and Sr. There is a 99.9 % chance that I will never need to have or use an armature lathe, a D2, an M, or an H, but I still really enjoy learning from Professor Squatch and Professor Emeritus Squatch Sr.! Good stuff as always!
Pretty cool tools! Not only did you have to restore and rob from others, but you had to modify new components to work on the older stuff. Yet another reason that anyone and everyone who is into mechanical objects should love your channel. The inventiveness never ends! Nice work, Senior!
Those were the days. You diagnose a faulty generator or starter, remove the unit, order brushes, bearings, etc., and rebuild the unit using an armature lathe such as these. Glory days!
We need a senior playlist buton on the channel. I love the tractor stuff but i also love his knowledge and repairs to everything i would toss and buy a new one. I am one who wants to know before its forgotten
I honestly think that the lathe worked so well because you use Ford 8N red belly paint on it and I really like the little wood stove in Seniors workshop 😀🇨🇦
For the slotting saws, they are available on-line from Martindale Electric in Cleveland OH. Part number 9-1/2-HS for the undercutter with the separate motor. Use .030" for these Delco motors. Other widths are available. The undercut between the bars should be .030" wide x .030" deep. Finish the surface with "00" per Delco although I prefer 100 grit aluminum oxide. Leave the surface looking like it has been honed but in a circular pattern not cross hatched. This finish will knock down any asperities from the undercutting, help the brushes seat and more importantly will grab the graphite and hold it on the surface so the brushes have a "lubricant" to run against. If you get it right, the commutator will have a chestnut brown color in service. Also noted a comment about not undercutting the starter motor commutators; these should be undercut as well. I use my TruCut to re-work fractional hosepower Delco motors for locomotive fuel and oil pumps as well as Delco 50MT starter motors for these engines. (2 - 32V 50MT motors wired in series) and have re-built a couple of thousand in the past 30+ years. These small DC motors will run for many years without stopping and the starters will be in service 4 years and provide 15,000 (fifteen thousand) start cycles. The majority are returned in working order, minimal brush wear, but in need of overhaul. It's amazing to see an old armature with so much service set up in the TruCut and with its centerless chucking system it will come right back true running at the commutator. In order to handle the longer 50MT armatures I replace the dead plug on the left stock with a 3/4" pipe and cap to allow the shaft to extend past the left stock bearings and have it chucked up much closer to the armature. One more note; on checking for grounds it is much more "revealing" to use a meg-ohm checker (not a hi-potential tester) rather than the multi-meter continuity tester. With the megger's higher voltage, poor insulation will be detected that will not be found with the multi-meter. I hope some of this information will be helpful. Thank you for your channel and all of the information you share with all of us!
As a teenager in the late 60s early 70s I worked in a little auto parts store in North Denver. We had a starter/generator shop in the back ran by a man named Harry. I can still see him turning armatures and testing field coils with a lit Camel hanging out of the corner of his mouth. If I remember, a rebuilt generator was around $13.00 and a starter would be around $19.00 unless it was one of the big Delco-Remy's out of a truck. Halcyon days.
Hi. Just some ideas. Over here that Boring Lathe Tool would be called a 'Boring Bar' - it might be worth searching for that if you don't have access to McMaster-Carr. The groove cutter could be made out of what we call silver steel , turned to size and then teeth filed or milled into the circumference. Afterwards the miniature cutter would of course be hardened and then tempered. A competent amateur machinist could probably be found to manufacture a batch of them. Alternative a spining single tooth cutter might well do a surprisingly good job and could have a short turned down shank and then the remaining larger disk hand filed to shape on the end. I was also wondering if something like a Dremel grinding disk (disc?) could be used mounted on a suitable arbor. It would all need some experimentation.
I used to work for a auto electric garage back in the 80s and in the late 80s the owner died in a car accident so I didn’t work there anymore but we used to buy equipment like that including all everything we needed from Field coils, armatures, brushes, brush holders and springs bushing, bearings and undercutter blades all from Aces Auto Electric but like I said that was over 30 years ago.
Ha, between the two of you... you guys have the most impressive, A to Z home-shops possible! We always enjoy following whatever project you're working on.
Excellent video it's nice to see what senior has been doing. A possible source for that small cutter would be a tool and die shop may use small cutters to scribe lines or score small parts or possibly a glass shop most specialty machines sourced parts that were for another use and built their machine around it. Keep up the great videos
Look into woodworking marking gauge wheels like a veritas. I understand they are not saw teeth but it could be easily filed. Another solution would be a Dremel grinding disk, why wouldn't that work?
Toby, you are looking for commutator saws, Google them, there are several sources to check with. Also, after turning and undercutting the commutator, you should polish it with fine sandpaper, you want it as smooth as possible for best performance. Thanks for all your videos, I watch them all. Gary
Great to see ya senior! I'm a machinist so maybe this idea will make your machining easier. I have swiveling handles on my tool holder/tailstock so running the cutter in and out is way easier and much smoother. Just a thought. I look forward to all the squatch videos, you have so much knowledge and that gives me great pleasure in learning from you both! Thank you for your efforts!
The dental industry might have the disc saw. I remember browsing some catalogs some years ago looking for a small carbide bit for a job and they had disc blades (also carbide) that were something like 10mm down to 4mm. Caveats: pricey, like all dental things and possible difficult to source, but at least there's an idea to look into. If you have a local dentist you're familiar with, maybe they can source it for you, they have tons of connections with dealers and such. Also, another caveat, the ID might differ, but maybe you can figure something out, you do have a normal lathe, so making an adapter or a mandrel for it might be easy. edit: oh and another place that might have it (also medical) bone implant saws. Those are also going to be small. The issue with those, they have shanks. So if the first one was just a blade, this is the full cutter, so you'll definitely need a holder for it. On the plus side, the quality will far exceed anything else you'd buy. Old or new. They don't mess with stuff in the medical industry, everything's built to spec. All the surplus and new medical tools i've bought over the years is on the "heirloom" grade list.
What am I doing wrong ? Dressed the armature on my 36vdc electric forklift. Used my 24 inch lathe with a sharp cutting tool but the soft copper still smeared. Did the undercut with just a sharp knife. It all worked just fine, but perhaps a few words on how to dress the soft copper without smearing it ? Second question: Why do you need a 4 jaw chuck the 3 jaw should center the shaft just fine. Please advise ?
Sr. Thanks for the update and the demonstration great work as normal. As the saying goes fix it right the first time and you don't have to fool with it again.
Hi, long time watcher of the channel, first time commenting. I’m sure you have but, reach out to one of your machine shops you have a relationship with from the farmall heads or starting engine blocks and see if they can source the cutter from their tool vendor. It’s a slitter saw, or ID groove cutting tool for a mill in the machining world maybe you’ll have some luck there. Or at least an adapter option. Love the videos and thoroughness of you and Sr’s work. Thank you, Stephen
For the orange belt material. Try super glue sometime. The ends need to be cut nice and square and you just put a dot of glue on one end then join the two. Try it just for fun, you might be surprised.
Cool stuf, sadly there wasnt mutch in europe, but let me know the dimentions of the slotcutter. I had an D-Bit grinder and an small universal toolgrinder. These min cutter shouldnt be an big problem.
You might look at Misenheimer Inc in Morristown, TN. Might be an option. If not, I know of a gunsmith that's a retired machinist from the Navy that might could whip something up.
They’re all too big, their center holes are bigger than the entire blade on these old ones. They’d still work, but we’d have to turn a custom sized mandrel for them 👍
What size do you use 800-01143 Armature Undercutting Blade 800-01143 J&N Electrical Products Armature Undercutting Blade 5/16" Undercutting hope that helps
I must ask because it has been days if not weeks since I have been able to be on, but I believe that this is not a members first type video, because I just watched a couple of ads. I am not complaining per se, but I am just trying to understand the You tube system and trying to help you out if there is irregularities in how the they do their videos. This was an excellent Video! It is nice to see Sr. in the videos, as well I was able to watch videos at work but can not comment or like. So this is something thatI will do in the near Future (I Hope) With this weather as it is, has the sap started running there, and if it has how does that effect your gathering process?
Wow, this showed that it was 5 hrs old but now that I have commented I am noticing that there is comments that are at least 3 days old, so You Tube is not keeping there info up to date!
Yes, this video spent a few days sitting on the Members’ channel ad-free before I had a good time to put it up on the public feed here - the prior salvage yard video was still going strong so I left it as the most recent upload for a while longer to take advantage of its popularity 👍Yep the sap has been running here, but Senior decided to take this year off from doing syrup because we’ve still got a lot left from last year.
Sorry, just trying to get info to you, and hopefully correct info, so you might be able to have knowledge of a issue and possibly correct it for those that would rather have ad free viewing. I became a member to help you to and your channel, not to have ad free viewing. @@squatch253
Good afternoon will you help one of your members all the way in California . Your advice for someone who wanted to restore a tractor what brand would you recommend considering Parts availability and price .
Hi Senior, nice tidy workshop! Pleasure seeing you on screen as well. I suspect my previous post was trying to teach you to suck eggs, but maybe it will 'spark' some ideas elsewhere.
Always good to get in the shop with Squatch and Sr. There is a 99.9 % chance that I will never need to have or use an armature lathe, a D2, an M, or an H, but I still really enjoy learning from Professor Squatch and Professor Emeritus Squatch Sr.! Good stuff as always!
Pretty cool tools! Not only did you have to restore and rob from others, but you had to modify new components to work on the older stuff. Yet another reason that anyone and everyone who is into mechanical objects should love your channel. The inventiveness never ends! Nice work, Senior!
Those were the days. You diagnose a faulty generator or starter, remove the unit, order brushes, bearings, etc., and rebuild the unit using an armature lathe such as these. Glory days!
We need a senior playlist buton on the channel. I love the tractor stuff but i also love his knowledge and repairs to everything i would toss and buy a new one. I am one who wants to know before its forgotten
I honestly think that the lathe worked so well because you use Ford 8N red belly paint on it and I really like the little wood stove in Seniors workshop 😀🇨🇦
For the slotting saws, they are available on-line from Martindale Electric in Cleveland OH. Part number 9-1/2-HS for the undercutter with the separate motor. Use .030" for these Delco motors. Other widths are available. The undercut between the bars should be .030" wide x .030" deep. Finish the surface with "00" per Delco although I prefer 100 grit aluminum oxide. Leave the surface looking like it has been honed but in a circular pattern not cross hatched. This finish will knock down any asperities from the undercutting, help the brushes seat and more importantly will grab the graphite and hold it on the surface so the brushes have a "lubricant" to run against. If you get it right, the commutator will have a chestnut brown color in service. Also noted a comment about not undercutting the starter motor commutators; these should be undercut as well. I use my TruCut to re-work fractional hosepower Delco motors for locomotive fuel and oil pumps as well as Delco 50MT starter motors for these engines. (2 - 32V 50MT motors wired in series) and have re-built a couple of thousand in the past 30+ years. These small DC motors will run for many years without stopping and the starters will be in service 4 years and provide 15,000 (fifteen thousand) start cycles. The majority are returned in working order, minimal brush wear, but in need of overhaul. It's amazing to see an old armature with so much service set up in the TruCut and with its centerless chucking system it will come right back true running at the commutator. In order to handle the longer 50MT armatures I replace the dead plug on the left stock with a 3/4" pipe and cap to allow the shaft to extend past the left stock bearings and have it chucked up much closer to the armature. One more note; on checking for grounds it is much more "revealing" to use a meg-ohm checker (not a hi-potential tester) rather than the multi-meter continuity tester. With the megger's higher voltage, poor insulation will be detected that will not be found with the multi-meter. I hope some of this information will be helpful. Thank you for your channel and all of the information you share with all of us!
Squatch, have you checked with these folks to see if they have what you need?
Very enjoyable episode with Senior. Love to see old tools given a new life. Could hear the train horn at the very end.
Nice to see Senior again.
He was obviously a very good teacher with his thorough examination and meticulous attention to detail, Squatch
Thanks for the video Toby! Thank you Senior for showing us what you have been up to. Cheers
As a teenager in the late 60s early 70s I worked in a little auto parts store in North Denver. We had a starter/generator shop in the back ran by a man named Harry. I can still see him turning armatures and testing field coils with a lit Camel hanging out of the corner of his mouth. If I remember, a rebuilt generator was around $13.00 and a starter would be around $19.00 unless it was one of the big Delco-Remy's out of a truck. Halcyon days.
Always a treat with Sr in front of the camera
love listening to senior myou have a lot of respect for him and thoroughly deserved!
Nice to see Senior and his projects he's been working on. Those lathes are very neat and handy
16:03 always appreciated when Senior joins the show!
Hi. Just some ideas. Over here that Boring Lathe Tool would be called a 'Boring Bar' - it might be worth searching for that if you don't have access to McMaster-Carr. The groove cutter could be made out of what we call silver steel , turned to size and then teeth filed or milled into the circumference. Afterwards the miniature cutter would of course be hardened and then tempered. A competent amateur machinist could probably be found to manufacture a batch of them. Alternative a spining single tooth cutter might well do a surprisingly good job and could have a short turned down shank and then the remaining larger disk hand filed to shape on the end. I was also wondering if something like a Dremel grinding disk (disc?) could be used mounted on a suitable arbor. It would all need some experimentation.
Real interesting video, Senior is a very talented individual. We know he passed that along to Squatch.
I used to work for a auto electric garage back in the 80s and in the late 80s the owner died in a car accident so I didn’t work there anymore but we used to buy equipment like that including all everything we needed from Field coils, armatures, brushes, brush holders and springs bushing, bearings and undercutter blades all from Aces Auto Electric but like I said that was over 30 years ago.
I would look at Dremel saw cutters to replace the mica cutter. It won't be identical but could be made to work.
It’s great to see Senior in a video. Both of you have such attention to detail. I am always impressed with that. Thanks for a very enjoyable video.
Use an outside star washer that you flatten out for the micarda cutter
Ha, between the two of you... you guys have the most impressive, A to Z home-shops possible! We always enjoy following whatever project you're working on.
maybe worth having a look at dremel style consumables for the under cutter
Excellent video it's nice to see what senior has been doing. A possible source for that small cutter would be a tool and die shop may use small cutters to scribe lines or score small parts or possibly a glass shop most specialty machines sourced parts that were for another use and built their machine around it. Keep up the great videos
Always cool and interesting to se Sr. projects .. tks to both of you for sharing 👍👍
Interesting Video
Watching Squatch & Sr makes me feel like everything’s gonna be alright.
Don’t even have to think. Squatch video pops, the like button is hit!
Those lathes look beautiful like Factory new. McMaster-Carr has saved my bacon a few times as well! I just love that place. Great work. 👍
You’d did an awesome job Senior. Thanks for the demonstration.
Look into woodworking marking gauge wheels like a veritas. I understand they are not saw teeth but it could be easily filed. Another solution would be a Dremel grinding disk, why wouldn't that work?
Toby, you are looking for commutator saws, Google them, there are several sources to check with. Also, after turning and undercutting the commutator, you should polish it with fine sandpaper, you want it as smooth as possible for best performance. Thanks for all your videos, I watch them all. Gary
Yep I’ve covered the polishing before, the Delco-Remy manuals specify a “00” grit emery cloth for the job 👍
Bandsaw tire warehouse has the belts on ebay.
Is Senior a machinist by trade he certainly makes a beautiful job of every thing he does very precise
Always enjoy the Sr videos! I haven't seen one yet where I didn't get a good education. Hoping more of these are in the works.
McMaster has saved me a few times on hard to find stuff.....
I love seeing what senior is doing.
me too, can't wait for the next video that Sr. shares.
Nice job Senior. that came out beautiful I want send my model t starter and generator armature to you. 🤣
@sqautch253. what size is the under cut saw blade? my friend owns a machine shop and he maybe able to source one
Har använt en Svensk liknade i min ungdom i mitten 60 talet. LÖWE industri hade tillverkat den.
I need to find one of these armature lathes for my shop. Swap Meets here I come LOL
Well it is always nice to see your Dad in videos keep up the good work.
Great to see ya senior! I'm a machinist so maybe this idea will make your machining easier. I have swiveling handles on my tool holder/tailstock so running the cutter in and out is way easier and much smoother. Just a thought. I look forward to all the squatch videos, you have so much knowledge and that gives me great pleasure in learning from you both! Thank you for your efforts!
The dental industry might have the disc saw. I remember browsing some catalogs some years ago looking for a small carbide bit for a job and they had disc blades (also carbide) that were something like 10mm down to 4mm.
Caveats: pricey, like all dental things and possible difficult to source, but at least there's an idea to look into. If you have a local dentist you're familiar with, maybe they can source it for you, they have tons of connections with dealers and such. Also, another caveat, the ID might differ, but maybe you can figure something out, you do have a normal lathe, so making an adapter or a mandrel for it might be easy.
edit: oh and another place that might have it (also medical) bone implant saws. Those are also going to be small. The issue with those, they have shanks. So if the first one was just a blade, this is the full cutter, so you'll definitely need a holder for it. On the plus side, the quality will far exceed anything else you'd buy. Old or new. They don't mess with stuff in the medical industry, everything's built to spec. All the surplus and new medical tools i've bought over the years is on the "heirloom" grade list.
Wonderful to see Senior and Squatch 253 together.
Question: apparently you and your father have separate shops- correct?
Does Dremel make a cutter bit that small?
I have a nice TRUCUT Armature Tester ATM-1. Looking for a manual and also the date it first came out.
What am I doing wrong ? Dressed the armature on my 36vdc electric forklift. Used my 24 inch lathe with a sharp cutting tool but the soft copper still smeared. Did the undercut with just a sharp knife. It all worked just fine, but perhaps a few words on how to dress the soft copper without smearing it ?
Second question: Why do you need a 4 jaw chuck the 3 jaw should center the shaft just fine. Please advise ?
Thanks guys. I've said it before, I like the electric sleuthing and remanning.
A good tutorial there guys!
Sr. Thanks for the update and the demonstration great work as normal. As the saying goes fix it right the first time and you don't have to fool with it again.
Good to see Sr again
Thanks Senior! Enjoyed the demo. You guys do some nice work!
Great video as always. Those lathes are - dare I say it - cute little buggers. The tolerance was amazing.
Hi, long time watcher of the channel, first time commenting. I’m sure you have but, reach out to one of your machine shops you have a relationship with from the farmall heads or starting engine blocks and see if they can source the cutter from their tool vendor. It’s a slitter saw, or ID groove cutting tool for a mill in the machining world maybe you’ll have some luck there. Or at least an adapter option. Love the videos and thoroughness of you and Sr’s work. Thank you, Stephen
I love old electric motors the size of a watermelon. They just look so cool. Thanks for the video, Squatch.
Could you use a DREMEL cutter blade of some sort, either the thin blue steel tooth blade or a thin abrasive cut-off wheel for the missing cutter?
Great video! Always nice to see yall enjoying some shop time.
That was unique ! I had to reboot to get audio. Always a challenge.
Thanks Sr! Always a pleasure.
Have you tried an abrasive disk for a dremel to do the relieving? Seems it would be about the right size.
Thanks for the video Toby! Always interesting learning new things I haven’t heard of before with stuff like this. Can’t wait for the next video
Great video. I really like it when you guys explain how tools and equipment work.👍
Very interesting! Hard to believe you don't have snow on the ground. Here in Jacksonville, FL we haven't even had a freeze yet..
Warmest and driest winter on record here so far.
Great job, the lathes look really nice and the bases too.
I have a question about the cutter blade? I'm wondering if a blade from a Dremel tool would work?
I've used Harbor Fright Chicago Electric Item 67224 and adapted
Great video! Thanks Senior! Did I hear a train just as you walked out the door? Amazing timing.
Yep, those trains are always taunting me lol
You need a screw slitting saw blade.
For the orange belt material. Try super glue sometime. The ends need to be cut nice and square and you just put a dot of glue on one end then join the two. Try it just for fun, you might be surprised.
We tried super glue, but it didn’t hold. We could easily pull the ends back apart.
Hmmmmmmm, I know it works quite well on neoprene. Maybe you didn't let it sit long enough? I suppose your way works just as well. @@squatch253
Give a search for "dental cutting wheels"
Thank you, senior.
Cool stuf, sadly there wasnt mutch in europe, but let me know the dimentions of the slotcutter. I had an D-Bit grinder and an small universal toolgrinder. These min cutter shouldnt be an big problem.
For the small cutters, I would suggest modifying a pipe cutter wheel, basically putting teeth in it.
You might look at Misenheimer Inc in Morristown, TN. Might be an option. If not, I know of a gunsmith that's a retired machinist from the Navy that might could whip something up.
Undercutting saw blades from Martindale Electric Company
They’re all too big, their center holes are bigger than the entire blade on these old ones. They’d still work, but we’d have to turn a custom sized mandrel for them 👍
We use martindale cutters at work too, a lot of different thicknesses, maybe a custom mandrel is the way to go, but keep the original one.@@squatch253
What size do you use 800-01143 Armature Undercutting Blade
800-01143
J&N Electrical Products Armature Undercutting Blade
5/16" Undercutting hope that helps
I think that might actually be what we’re looking for 👍
Idea on the undercutter blades look for dremal saw tooth blades
Hello enjoy your programme very much like your tips your Armature lathes would u be willing to sell one please thank you
Thanks senior. Any chance of a toolbox tour like squatch done
It looks like the motor pulley is cylindrical and not barrel shaped/crowned, which is essential for the belt to stay centered?
I believe Sr. Has bagged a buck or two in his day.
Yes those are almost all his 👍
Micro 100 should have some excellent boring bars.
What about investigating Dremel-type Saw Blades for the Undercutter?
I must ask because it has been days if not weeks since I have been able to be on, but I believe that this is not a members first type video, because I just watched a couple of ads. I am not complaining per se, but I am just trying to understand the You tube system and trying to help you out if there is irregularities in how the they do their videos.
This was an excellent Video! It is nice to see Sr. in the videos, as well I was able to watch videos at work but can not comment or like. So this is something thatI will do in the near Future (I Hope)
With this weather as it is, has the sap started running there, and if it has how does that effect your gathering process?
Wow, this showed that it was 5 hrs old but now that I have commented I am noticing that there is comments that are at least 3 days old, so You Tube is not keeping there info up to date!
Those dark spots may have been where the brushes were sitting over the years resulting in the staining.
Yes, this video spent a few days sitting on the Members’ channel ad-free before I had a good time to put it up on the public feed here - the prior salvage yard video was still going strong so I left it as the most recent upload for a while longer to take advantage of its popularity 👍Yep the sap has been running here, but Senior decided to take this year off from doing syrup because we’ve still got a lot left from last year.
Sorry, just trying to get info to you, and hopefully correct info, so you might be able to have knowledge of a issue and possibly correct it for those that would rather have ad free viewing. I became a member to help you to and your channel, not to have ad free viewing. @@squatch253
Great job very nice 👍🏻🇺🇲
Cool video and a nice lathe i did not know of before now
Great video thanks for sharing
Would a 2 sided diamond disc for a rotary tool work for an undercut blade...or anything in a rotary bit set...???
Very Very Interesting. Thanks
Thanks
K b c tool company slitting saw blade I know they make many sizes, if not there maybe Granger? Good luck
Will any of the small saw blades for the Dremel work on that ???
Nice shop 💪🇺🇸
Proxxon 16mm = 5/8 inch miniature saw blade is the smallest I've found. Plenty of 3/4". What is the current, .40 / 10mm?
What has senior been up to? Senior: "Monkeying"
Thanks senior. Neat tool.
Toby,
Can you share the undercut blade specs (thickness, diameter, hole diameter, tooth count) ... and if you know what material it may be.
Thanks
👍❤️🤗
Good afternoon will you help one of your members all the way in California . Your advice for someone who wanted to restore a tractor what brand would you recommend considering Parts availability and price .
Cool, dedicated machines.Who makes those?
Hi Senior, nice tidy workshop! Pleasure seeing you on screen as well. I suspect my previous post was trying to teach you to suck eggs, but maybe it will 'spark' some ideas elsewhere.