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Its nearly there !

My ML10 rebuild

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Dave Springate17/03/2019 14:45:03
56 forum posts
121 photos

Finally, got the lathe back together and I'm really pleased with it although I am so tempted to strip it again and spray the bed, tailstock and headstock as I have the covers as its a much better finish. Trouble is I want to start using it. Just waiting on new switch gear and should be able to get it up and running.20190317_141645.jpg

3404617/03/2019 15:06:15
482 forum posts
3 photos

Fine looking job - well done.

I am normally a matching colour man, but in this case I think I could happily live with the contrasting colour.


Mick B117/03/2019 15:25:54
1079 forum posts
60 photos

What's up with my eyesight? I think it looks pretty good, and I can only see the faintest mismatch. laugh

Thing I'd wanna do it put in a leadscrew clutch and handwheel dial, like my old Speed 10 had. Good for milling in the vertical slide, and dialing off exact facing lengths, with halfnuts engaged and without disconnecting the geartrain.

Dave Springate17/03/2019 18:12:42
56 forum posts
121 photos

A leadscrew clutch is on my list of things to do as I have some drawings to follow, as is a handwheel dial, the first job is a new handle for the original drum switch, although I won't be using it. Thought it might be a nice beginner project to get something turned to size and to try and cut a thread.

duncan webster17/03/2019 18:22:40
2112 forum posts
27 photos

Paint doesn't make it work any better, and it looks pretty good to me anyway.

Rather than a clutch have you considered a 3 phase motor? Much smoother running and much less troubled by stop/starts. Could easily be cheaper as well.

Edited By duncan webster on 17/03/2019 18:23:56

Dave Springate17/03/2019 18:48:28
56 forum posts
121 photos

Hi Duncan, yes I have considered three phase with a VFD but the motor that came with it was running fine when I tested it and will do to get me started. I do appreciate that three phase and its benefits would be the way to go when this one packs up though and it will be on the cards at some point. I just want to get going and use the lathe even if its a simple thing like a handle for the old drum switch laugh


Here is the drum switch, i have stripped cleaned and painted it, its a type A Dewhurst switch and it appears to be threaded where the handle fits. Does anyone know how to measure this thread?


Edited By Dave Springate on 17/03/2019 19:19:05

Jon Lawes17/03/2019 19:48:37
308 forum posts

Those Dewhurst switches are great for changing direction but for starting and stopping they seem to arc and erode over time. If I can respectfully suggest another switch inline which you use for starting and stopping the lathe, leaving the Dewhurst engaged and only changed when a direction change is required. Its is also a good opportunity to include a No Volt Release switch, which is a good safety improvement anyway.

The work you have done on restoring that lathe is superb, good work.


Emgee17/03/2019 20:09:37
1113 forum posts
201 photos

Dave, measure the thread internal diameter, this is the Core size and is close to the tapping drill size for the thread in the spindle. Check thread charts for a similar size core and you may find an exact match, or the thread size may be the same as diameter of the operating handle if someone could measure.
If you have access to some thread gauges you will be able to confirm the TPI by inserting gauge into the threaded hole, from memory it may be 1/4" W or BSF.


AJW17/03/2019 21:34:46
270 forum posts
117 photos

That looks great, super job - don't get it all messed up though!


roy entwistle17/03/2019 21:54:56
985 forum posts

Dave Try to insert a bolt of the appropriate size bearing in mind that it will probably be imperial or BA


Mick B117/03/2019 22:10:51
1079 forum posts
60 photos

I see all the comments about Dewhurst switches - how did I get away with using mine to start and stop my Speed 10 many thousands of times over 15 years without a hint of a problem?

Hopper17/03/2019 22:29:33
3651 forum posts
72 photos

Looks good. Don't forget the bed and apron will quickly be covered with oil and swarf once you start using it, covering up any glossy paintwork underneath.

Dave Springate18/03/2019 10:05:57
56 forum posts
121 photos

thumbs up Hopper

Dave Springate21/03/2019 07:28:16
56 forum posts
121 photos

Still waiting for a NVR switch to turn up so......


Edited By Dave Springate on 21/03/2019 07:30:40

Graham Flavell21/03/2019 13:19:25
15 forum posts
17 photos

dewhurst switch lever.jpg


5/16 Whitworth on my Dewhurst type A.



Dave Springate21/03/2019 14:13:03
56 forum posts
121 photos

Brilliant, thanks Graham, that's exactly what I have to try and make yes

Dave Springate24/03/2019 14:18:05
56 forum posts
121 photos

All back together now after rubbing back down and spraying the few bits that I had hand painted. Really pleased with how it turned out. Just waiting on an NVR switch to turn up and I can finally get the motor installed and get it up and running.


Bazyle24/03/2019 15:51:34
4590 forum posts
185 photos

Looking good. I can still remember looking enviously at one at the ME show in about 1981 when they cost £600 without tray, motor, or chuck and were the cheapest lathe at the show apart from a tiny flexispeed.

For finding threads when a helpful forum isn't available just screw in a bit of soft wood or plastic loosely so it is indented with the thread to measure against a rule more easily.

For those misusing their Dehursts and getting away with it because they are old fashioned solidly built - the next owner will suffer from your lack of consideration.

Jon Lawes24/03/2019 16:34:30
308 forum posts

I hope its not too good to use, that would be criminal!

Jim Guthrie24/03/2019 17:58:42
90 forum posts
5 photos
Posted by Bazyle on 24/03/2019 15:51:34:

Looking good. I can still remember looking enviously at one at the ME show in about 1981 when they cost £600 without tray, motor, or chuck and were the cheapest lathe at the show apart from a tiny flexispeed.

Mine cost just over £100 in 1973 (Ted Heath's three day week year) and I remember that the price doubled when I added in the three jaw, four jaw and Jacobs tailstock chuck. So that's a fair bit of inflation given that my lathe was the original plain bearing version and your 1981 version probably was a Speed 10.


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