By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

Myford ML4 cross slide backlash

ACME thread cutting

All Topics | Latest Posts

Search for:  in Thread Title in  
Mike Sparks07/08/2020 14:38:05
2 forum posts

I am restoring a 75 + yo Myford ML 4. There is 75 thou backlash in the cross slide which is in the cast iron thread not in the turn wheel gap. This model does not have a bronze nut! I want to make a couple of bronze nuts but cannot locate a 5/16in x 12 TPI ACME tap, or preferably a 3 part set. Tracy tools will make one for £200 + Vat, more than lathe is worth probably. Any help for a beginner appreciated. I note that most messaging is for ML7's which I believe have 3/8in lead screws and taps are available.

old mart07/08/2020 16:39:53
1906 forum posts
151 photos

You may find it easier to use the later parts with a new leadscrew and nut bought and modified.

Mike Sparks07/08/2020 18:38:01
2 forum posts

Thanks for feed back Old Mart. I have considered this, going for a 3/8in leadscrew in saddle slide and cross slide definitely opens up tools readily available. Have to check that tapping the castings 3/8 ACME allows sufficient thread cover, the tapped through hole is very close to the tool post mounting plane. The ML4 is clearly a much lighter item than 7 series, guess Myford had learnt lessons during WW2 period.

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

Latest Forum Posts
Support Our Partners
emcomachinetools
Warco
cowells
EngineDIY
Eccentric July 5 2018
ChesterUK
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
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