By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale May 23

Its nearly there !

My ML10 rebuild

All Topics | Latest Posts

Search for:  in Thread Title in  

Dave Springate17/03/2019 14:45:03
avatar
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
405 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.

Bill

Mick B117/03/2019 15:25:54
1033 forum posts
58 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
avatar
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
avatar
2082 forum posts
32 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
avatar
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?

20190317_185509.jpg

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

Jon Lawes17/03/2019 19:48:37
avatar
306 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.

Jon.

Emgee17/03/2019 20:09:37
1091 forum posts
199 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.

Emgee

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

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

Alan

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

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

Roy

Mick B117/03/2019 22:10:51
1033 forum posts
58 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
avatar
3615 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
avatar
56 forum posts
121 photos

thumbs up Hopper

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

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

20190321_072428.jpg

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

Dave

5/16 Whitworth on my Dewhurst type A.

Regards

Graham

Dave Springate21/03/2019 14:13:03
avatar
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
avatar
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.

20190324_125127.jpg

Bazyle24/03/2019 15:51:34
avatar
4542 forum posts
184 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
avatar
306 forum posts

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

Jim Guthrie24/03/2019 17:58:42
87 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.

Jim.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Support Our Partners
Eccentric July 5 2018
ChesterUK
Warco
TRANSWAVE Converters
Ausee.com.au
Eccentric Engineering
Sarik
Allendale Electronics
emcomachinetools
Subscription Offer

Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest