Cleaning the Emco - finishing the job
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- Опубліковано 1 жов 2024
- A mostly silent video, showing more cleanup work on the Emco V10-P lathe. All that's needed now is motor wiring.
I had a short visit from @TommyGun Machining mid-way through the video - he generously loaned me his reamers to clean up the tailstock MT2 socket. Thank you Tom that worked great!
/ craigsworkshop
craigsworkshop.net - Наука та технологія
Looks good after a lot of work. Cheers Rob
Yes - it's getting better gradually. Thanks Rob! Cheers, Craig
That's looking great Craig, for some reason I had become unsubscribed?
A lot of effort but well worth it, just a word of warning, when I blew my first vfd up and changed to my Myford vfd, I didn't consider the braking,(I cant program the later) it stops too fast and I think its responsible for damaging the tuffnol gears in the headstock! I hope to do a video soon, but I've got a lot going on! Definitely looks like you've got a good un' there though Craig!😃,
Atb,
Cliff
Cheers Cliff. Thanks for dropping in. It's a good un for sure. I have a VFD but I will be careful with the braking as you said. Thanks for the tip mate. 👍
Short but sweet. looking good Craig. it is going to be a sweet machine , Cheers Ade.
Thank you Ade - it definitely has some promise :)
The paint cleaned up great. Looks like very little staining and wear and tear.
Yes, I'm very happy about that. This lathe was definitely a lucky find. Cheers, Craig
Cleans up nicely. Got a winner without a ton of wear on it. Yay!
Thanks Bob - my premo can turn out accurate parts, but this one has a fraction of the wear of the premo, so I am very hopeful. Cheers, Craig
What a sweet little lathe. Looks awesome! My compact 8 has a similar looking short spindle nose taper for locating the chuck. The 3 jaw chuck mine came with is super accurate as far as 3 jaw chucks go. I did end up buying a 4 jaw independent because of the added versatility. The 4 jaw is not nearly as good of a quality chuck as what emco installed on them. Unfortunately the Emco branded 4 jaw is too expensive for me to justify (they cost more than I paid for the lathe).
Thanks! Yes I have a 6" bison 4 jaw (lightweight model) which is super well made and will suit the lathe perfectly I think.
@@CraigsWorkshop I'm jealous 😆
The bison came from my premo lathe and was always a little too small. I have now got a Taiwanese 200mm/8" chuck for the Premo. So it all will work out in the end I hope.
Craig, if you don’t mind me asking what products and how did you do cleanup, just bought a Emco V10-P and needs some cleanup to look like yours. Thanks
Hi Gaskit. Lots of solvent (WD40 or mineral spirits or turps), things like wire wool, brass bristle brush, and 3M scourer for rust stains, and patience! Try to use the least aggressive methods first on things like ways and other bearing surfaces. Painted surfaces respond well with nylon bristle brush and solvent. Sometimes if it is really mucky/greasy/rusty, it pays to hit the whole thing once and only get it about 80% clean, but as quickly as possible, just so you can handle it without making a big mess, then clean the area, bin the old rags, and start again - go back and revisit everything properly and do a methodical 100% clean of everything.
That lathe may be finally in the hands of an owner who understands and appreciates what he's got since it left the factory. Anyone allowing a lathe of it's original quality and expense to get to the state your pictures show didn't deserve to own or use it. Possibly you already know this simple trick Craig, but it's surprising how many don't. Spur gears are required to have a clearance between mating gear teeth. Bottoming the teeth engagement against each other results in both increased noise but more importantly a large increase in gear tooth flank wear. Two spur gears in mesh HAVE to have a certain amount of clearance, or in layman terms a slight backlash condition. The simple and cheap way to guarantee that in a home shop is to use a strip of common paper squeezed between the mating gear teeth and then tighten the bolts or nuts that hold them in that pre set location. Paper is remarkably consistent in it's thickness. And various thicknesses can be found from .001" cigarette rolling papers to .003" printer paper or even thicker. Sometimes experimenting with various paper thicknesses will show one size will give a large reduction in gear noise when the machine's running. Once you find that it's then correct for the gear tooth roll angle for the tooth tips, gear pitch and type. Too much clearance can still work, but again going outside the ideal increases wear rates.
Thanks Turning point. Kind words! I had heard of the paper trick, but you have switched me onto the idea of trying different thicknesses in order to reduce noise and wear. Great idea. Thank you!
@@CraigsWorkshop Your welcome. Obviously your on a different continent than I am, in North America the Zig Zag brand cigarette rolling papers are almost exactly .001" thick. Folding them in half or multiples of them allows having a simple cheap gear setting gauge in .001" increments. Depending on the type and brand of printer paper then at around .003" or possibly a bit more that printer paper can also start to be used. In a home shop environment I don't know of a cheaper or easier method than that simple paper trick.
Your Emco would have very well made gearing with gear bores that will be concentric to there outside teeth. I've found at least one off shore lathe where that wasn't exactly true. On those the gear lash needs to be set a little looser in case anyone else is reading this and wants to do the same thing since those off shore machines are now common. If the apparent gear noise pulsates to higher and lower levels as the gearing rotates it's a sure sign at least one of them in that gear train isn't concentric.
Hi Turning point. Yes I know the cigarette papers you are talking about. Another brand that I know of is rizla (UK brand perhaps). The pulsating gear noise is a good thing to look out for. Makes perfect sense. Thanks for the pointers! Cheers, Craig
I always set mine with a single thickness of 20lb printer paper (Emco Compact 8). Works perfectly 👍
That gem cleaned up surprisingly good.Top-job.
Thanks Music man. Not finished yet though. Power supply and motor is next on the list.
Doooing good there Craig.
Surprising lack of visible wear considering the grinding paste liberally spread....
That's a problem with grease rather than oil eh.
It will be a pleasure to use to be sure.
What's weird is the Emco book dictates grease for most of the lube requirements. Very weird. I will be using machine oil.
I did this with mine when i got it too ,im very very happy with mine for clock related work ,a very versatile machine, great find 👍 and hats off to your renovation skills 👏 👌
Thank you Daryn! I cannot wait to motorise and power it. It looks so good after a cleanup, hope it works nice and accurately too 🙂
Coming along nicely Craig 🍻
Cheers Aaron 🍻
Where can i find info (diameter, teeth, module) of the first, top-left gear @ 1:31? I have bought same lathe (dirt cheap) missing this gear. Any help/info will be MUCH appreciated! Greetings from South-Africa! Joe
Hi Joe. You were lucky, because these lathes are worth a lot of money. If you can email me (details on my about page) - I'll have a more direct reminder to try to measure up and find out the specs of this gear for you. I can certainly measure the diameter, and count the teeth. From there, we should be able to work out the module. Thanks, Craig
Just measured and I believe it to be 45mm OD, 28 teeth, and module 1.5. The spur gear is a sliding type which is splined on the inside. The left hand lever on the front of the headstock moves this gear via a selector fork, either left (to engage with the gear towards the user), or right, to engage with the gear on the same shaft. So on the left side of the gear is a small boss, with a retaining lip, which the selector fork rides in, to the right is a kind of dog clutch which engages the larger fibre gear. If you email me as mentioned before, I've taken photos with the gear in both positions to give you as much info as possible (without taking it apart). Cheers, Craig
@@CraigsWorkshop Thanx sooooo much for the reply and info! I am super busy with work, so lathe project on hold for 2 weeks. I will e-mail soon!
So apart from general cleaning, and a coupla' replacement bearings - is it "all good", no renovation or repair needed?
The electrics and power train is more of a repair/replace type scenario. Mechanically she's all good. The cross slide nut needs to be remade though. It's not worn at all in the main section but the adjustable "flap" which controls backlash is broken. So effectively it's a nut with no backlash compensation at the moment, it would be nice to replace that for when some wear does occur. No scraping or other replacement parts needed though. I think the worst part of the machine is the paint work!
Wow, she's cleaned up great!
Thanks - not too shabby!
Gday, great job with the clean up, it’s a lot of work but worth every minute of effort..
It sure is Matty - thanks for your encouragement :) I think we're basically there with the cleaning now (just the accessories to go). Next is the easy stuff: motor and electrics. Thanks mate, Craig
Looking very sweet mate, didn't realise just how compact it is till I saw it on the welding bench.
Yeah it's a 10"/250mm swing (on paper, may be more in real life haven't measured). And I think it's 24"/600mm between centers. The weld bench is 1.2m X 0.6m for reference.
As long as it's kept away from the other one, the pitter patter of baby Premco's may be nice but they will drip oil everywhere 😁
😂
Going to be a nice lathe by the looks of it.
Thanks Kevin. I do hope so.
am quite jealous! a lovely find
Thanks Richard
Hi Craig,
Lots of good progress made... i think it is well worth the effort...
Take care
Paul,,
Thanks Paul. From one member of the emco club to another 😂 Looking forward to your next episode on the Emco restoration too. Yours will be a more thorough set of reference videos that will be useful for a very long time. Mine are more a quick "here's what I did" type of video.
Looking good Craig. Tony
Cheers Tony - she's cleaning up nicely
looking great!
Thank you Nigel! Cheers, Craig
I don't know what it's about gears. I just love seeing them, the more the merrier and the more complex the better. Perhaps the very definition of a gear head..lol
A literal gear head 😂 Me too!
It's looking good! I love seeing EMCO's getting restored like this.
Thank you Arnaud. It's enjoyable to do, as well!
Fantastic job Craig 👍👍 Looking like new! Cheers, Alan.
Thanks Alan. Not finished just yet!
G'day Craig well what a difference that lathe looks 100% the gears look fine well done mate you bought it back thanks for filming it kind regards John
Thanks John. Not finished yet, but the messy bit is mostly out of the way! Cheers, Craig
I have one of these, its in nice condition but OMG nothing like this! its like new, I would be too scared to strip mine to this level for fear of messing it up. Gorgeous job
Thanks 🙏 🙂
Starting to look like new again, she's a beaut for sure, cheers!
Thanks Howder - and you were very right about it being an enjoyable process. Well scooping out the old nasty grease wasn't a high point, but seeing it come back to life is very enjoyable.
This lathe looks to be in great shape and looking better all the time
Thanks Joe 😀
Can't wait to see this making some chips!
:-) You and me both!
Looking good! Thanks for sharing!
Thanks Craig, you're welcome
Making nice progress, Craig.
Thanks Daniel!