A teardown, inspection, and reassembly of my Rivett lathe headstock. Along the way I decide to make a new spindle gear to replace the broken original one. / joyofprecision
Пікірлер: 62
@markhobster8113 Жыл бұрын
Thanks a lot for adding this, I have a very dirty version of the 8" and I was really scratching my head at how to remove the spindle !!
@CaskStrength7773 жыл бұрын
What a mechanically gorgeous lathe! I love the internal gearing on the spindle cone and geared passthrough shaft on the headstock, so elegant 😍
@CreaseysWorkshop5 жыл бұрын
What a beautifully made machine you have. You are both lucky to have found each other.
@TheJoyofPrecision5 жыл бұрын
I think what you meant to say was "Get a room, you two!" 🤣 Thanks for watching John!
@FieryWaco5 жыл бұрын
Agreed. Rivetts are industrial art pieces. I get so jealous.
@ActiveAtom5 жыл бұрын
Nice internal share of you lathe, we enjoyed coming along watching. Lance & Patrick.
@TheJoyofPrecision5 жыл бұрын
Thanks for watching, guys!
@Watchyn_Yarwood Жыл бұрын
We have been missing you for three years. I hope all is well and that we will see you again soon.
@TheJoyofPrecision Жыл бұрын
Thanks! When the pandemic hit I spent all my shop time making parts for a local medical manufacturer, and that's stuff I wasn't allowed to show. We then ended up moving very far away, and the new house has been a lot of work. We have a nice barn here that will be my new shop and office, but it is far from usable yet. I thought about posting an update video that would be mostly me talking about all that, but previous videos of that nature were not very well received so I didn't bother. I'll definitely be back in due time though.
@Watchyn_Yarwood Жыл бұрын
@@TheJoyofPrecision I certainly understand. That is a lot of adjustments to make in one's life. I very much look forward to your return to the Tube! Take care and I wish you and yours the very best and a very Merry Christmas!
@machiningbasics1729 Жыл бұрын
I’ve just found a rivett lathe and I’m in the process of buying it , I blame you !
@EmmaRitson5 жыл бұрын
very interesting as always . well done on the gear. good to see whats inside.
@TheJoyofPrecision5 жыл бұрын
Thanks very much Emma! 🙂
@juanrivero85 жыл бұрын
Good to see you back, JOP. I was amazed at this video. Here we have a 100+ old lathe with cone bearings not only running but taking toolroom cuts. They must have had some heat treatment techniques that we have neglected. Of course in the 1920s Timken invented the tapered roller bearing and it was so good that people stopped using plain bearings. But to see a plain bearing hold up for a century is a real treat. And I too am about to use Canadian cutting oil. Breakfast in the shop. I too watch theogwheel :)
@TheJoyofPrecision5 жыл бұрын
Hi Juan! You're right about heat treatment techniques, I read once that Rivett (and others) would quench their finest bearing steel into liquid mercury. Small wonder we don't do that today. 🙂
@juanrivero85 жыл бұрын
I blame it all on Timken for inventing the roller bearing :)
@aceroadholder21855 жыл бұрын
Automobile plain bearings regularly last 500,000 miles. As long as you keep them lubricated, don't overload them, and spin the spindle fast enough to maintain the oil film the spindle is riding on the bearings will last a very long time. Most plain bearing wear occurs at startup and this is hard on lathe bearings where start-stop is the normal operation of the machine.
@juanrivero85 жыл бұрын
True. Locomotive bearings had much the same performance. But the Timken bearings introduced the other factor: ease of maintenance, so the old #1111 loco became the industry standard for locos. In the world of watchmaker's lathes, plain bearings were standard until Foley (I think, may have been Rivett) introduced tapered bearings. Today nobody makes plain bearings on lathes, for same reason that Timken made its name with #1111. Ease of maintenance.
@TheJoyofPrecision5 жыл бұрын
@@aceroadholder2185 fascinating! Are they still used? Commercial trucks maybe?
@warrenjones7445 жыл бұрын
your a good guy Max tearing apart a perfectly working machine so others can learn. If you ever get sick of that lathe I know where there i a good home for it! I promise I will feed it and clean up after it 😊 BTW like the new JOP Logo, nicely done.
@TheJoyofPrecision5 жыл бұрын
Haha thanks Warren!
@ROBRENZ5 жыл бұрын
Nicely done! enjoyed. ATB, Robin
@TheJoyofPrecision5 жыл бұрын
Thanks very much Robin! 🙂
@dolata0005 жыл бұрын
I am delirious with joy... MULTIPLE PENNY SIGHTINGS !!!
@TheJoyofPrecision5 жыл бұрын
😂🤣 Thanks for watching, as always!!
@TomMakeHere5 жыл бұрын
Great video! It has worn well. Nothing like good oldschool engineering I'm a bit scared to look at my bearings after the damage caused by the previous owners
@TheJoyofPrecision5 жыл бұрын
Haha yeah it's always a suspenseful moment the first time you look at some bearings on a used machine. Thanks for watching!
@Gavreeli5 жыл бұрын
Very Cool! I look forward to more of your content.
@TheJoyofPrecision5 жыл бұрын
And I look forward to disappointing you! 😂 Seriously though, thanks for watching!
@Gavreeli5 жыл бұрын
@@TheJoyofPrecision Just keep doing what you're doing. You have a beautiful machine there.
@lohikarhu7343 жыл бұрын
Simply, Happy 2021, and, we hope you are doing well, ok, at minimum! Any idea if you will do some more videos, at some point?
@jerrythejitterbugcomicbook4098 Жыл бұрын
Very interesting
@TheJoyofPrecision Жыл бұрын
Thanks Jerry!! I'll be back in the machining-video-saddle again before long. Are you a home shop machinist at all? You strike me as the type.
@glennfelpel97855 жыл бұрын
Very well done! Sure do appreciate seeing the inners of an old machine. I have a Stark but not nearly so old yet there are many similar features with it. Thank you.
@TheJoyofPrecision5 жыл бұрын
Those old Starks are wonderful machines! Thanks for watching, glad you enjoyed it.
@chrisstephens66735 жыл бұрын
Interesting but I'm glad I have a modern lathe, when I say modern it's coming up for its 60th birthday but still runs true.
@TheJoyofPrecision5 жыл бұрын
It's amazing how long a well made machine will hold up and still produce good work 🙂 Thanks for watching!
@jessestrum3 жыл бұрын
a rivett lathe was advertised on tony,s lathes for £1250 last week
@lexvoortz22132 жыл бұрын
Thanks for sharing all this. You sure have my sincere appreciation. Is the runout of the headstock adjustable ? I can imagine the conical bearings to tighten up if the axial preload is adjusted. Im just missing how rivett solved this.
@TheJoyofPrecision2 жыл бұрын
Thanks for watching! If I understand your question, then the answer is it's solved by bearing angle and surface area (of which there is much) combined with a film of the appropriate oil type. I imagine the angle of the bearing taper also plays a crucial role. Take note of that double angle taper on the front bearing - the steeper angle toward the nose is probably key to preventing binding under axial load during cutting. Of course both angles must be lapped together perfectly for this to arrangement to work. It's no wonder these machines cost as much as a house when they were new.
@jamesjakowyszyn70322 жыл бұрын
Hey! How come there haven’t been any videos recently? Hope all is okay!
@panchovilla14864 жыл бұрын
Great video
@TheJoyofPrecision4 жыл бұрын
Thanks very much!
@jimmyhawkins76963 жыл бұрын
I have one that is Rivett same as yours but it is in bad shape. I will be trying to rebuild it soon. Any suggestions
@peirob5 жыл бұрын
Nice report. I'm not sure to have captured the brand name of this lathe. Where was it manufactured? It is very nicely engineered (at least for the spindle). And that's really great to see that such vintage lathe can still machine precise mechanical components.
@TheJoyofPrecision5 жыл бұрын
Hi Pierre, thanks for watching! The lathe was manufactured by Rivett, in Boston. They were arguably the finest precision bench top lathes money could buy, back then.
@peirob5 жыл бұрын
@@TheJoyofPrecision Clear now. I thought that rivett spindles were a kind of spindle technology! Thanks and acknowledgements for your great channel.
@wayneacaron87445 жыл бұрын
that lathe intregues me. two compounds? rotating tool holder?? please, i must see more!!!! poppy
@TheJoyofPrecision5 жыл бұрын
Hi Poppy, thanks for watching! The lathe has only one compound. The tool holder was Rivett's patented design and is only found on some Rivett and Hjorth lathes. The lathe is shown in most of my videos, if you want to see more of it in action.
@hardcase16595 жыл бұрын
Would you mind telling me what kind of milling machine you have and especially your opinion on it.
@TheJoyofPrecision5 жыл бұрын
My pleasure! It's the LittleMachineShop Hi-Torque Mini Mill. For general work of smaller size, it's good - I think it's one of the better import mill/drills of this size, it really is small. If you can accommodate something like a used Bridgeport or Burke, then absolutely get one of those instead, if they aren't overpriced in your region. If you have the space constraint, as I do, then it's hard to beat one of these for the price. Of course a watchmaker size Sixis, Aciera, or Schaublin, would be far superior - but also 4-5 times the cost. I like the LMS version because it has larger base and table castings, with more x and y travel, has R8 spindle, has belt-drive spindle, has variable speed brushless DC drive & motor, has dovetailed column, and a fixed (non-pivoting) base. At the time (several years ago), some of those were features not offered on other import mill/drills - now you can find several companies selling these SIEG-based mills with most or all of those same features. The only thing I really dislike about it is the fine downfeed for the Z axis. It's a rather sloppy worm drive so there's a lot of backlash - it doesn't hurt anything, but it does let the rest of the machine down. The tram spec was something like 0.005", which is already a lot, but even then mine was out of spec. I used Stefan's copper wire & epoxy technique to get it trammed in. Typical of sliding dovetails on cheap import machine tools, the gib tension has to be tweaked as you move to different areas of travel. A weekend of crude scraping on it would probably go a long way.
@johnreese39435 жыл бұрын
Your Canadian cutting oil kinda resembles bacon grease.
@TheJoyofPrecision5 жыл бұрын
Astute observation!
@1967Twotone5 жыл бұрын
Nice job. So what exactly is Canadian cutting oil??
@TheJoyofPrecision5 жыл бұрын
Thanks! Haha, Canadian cutting oil is bacon grease. Little running gag between Justin and I, from the podcast. 🙂
@aceroadholder21855 жыл бұрын
@@TheJoyofPrecision Back when I started in the shop 55 years ago, they used bacon grease. It actually works well, especially tapping cold rolled steel... but on a cold morning the shop smelled like bacon and eggs from the smoke and I'd be starving! Cheers from NC/USA
@TheJoyofPrecision5 жыл бұрын
@@aceroadholder2185 lol! It really does work well 🙂
@vicosee44394 жыл бұрын
How do you know the bild date
@TheJoyofPrecision4 жыл бұрын
On all 608s, and 8" Precisions like mine, it is scratched into the rear of the name plate on the carriage, by Mr. Higgins, Rivett's master scraping hand.
@jessestrum3 жыл бұрын
hi max i,ve been trying to sign up for your patreon site without sucsess can you help