By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Forum House Ad Zone

Topslide clamping screw

All Topics | Latest Posts

Search for:  in Thread Title in  
vic newey22/11/2019 12:15:08
avatar
347 forum posts
173 photos

I need a longer screw on the topslide of a vintage lathe, the one on it now doesn't seem to be it's original length and it won't hold a special accessory I need to fix on

I want to remove it and insert a longer one but not sure how they are traditionally fitted in ? screwed probably but has anyone tried to remove one?topslide screw.jpg

Edited By vic newey on 22/11/2019 12:16:30

not done it yet22/11/2019 12:43:48
7517 forum posts
20 photos

I would expect it is screwed in?

I often remove studs from engines and other machines. I use a stud removal tool if they are tight.

vic newey22/11/2019 13:36:42
avatar
347 forum posts
173 photos
Posted by not done it yet on 22/11/2019 12:43:48:

Looking at stud removal on Google it gives mention to using two nuts to jam together at the bottom of the stud and then a spanner the lower one, I think I'll try that and hope it screws out

 

Edited By vic newey on 22/11/2019 13:37:08

Edited By vic newey on 22/11/2019 13:37:33

Nigel Graham 222/11/2019 13:49:17
3293 forum posts
112 photos

Careful: don't just try unscrewing it without examining the underside of the slide.

The stud might have a shallow countersink head on the end, or be staked in some way, so treating it as just a simple stud risks damage including possibly cracking the casting.

Howard Lewis22/11/2019 15:47:28
7227 forum posts
21 photos

Assuming that the stud was screwed in from the top, stud removal tools may mark the thread, especially if the stud is tight / corroded into place. But, if the stud is never going to be re used, damage should not matter, as long as it comes out without shearing off.

If it does, you are in the "centre, drill and tap" routine, so you need to certain of the thread (Looks like BSW to me? )

Howard.

vic newey22/11/2019 16:10:58
avatar
347 forum posts
173 photos
Posted by Howard Lewis on 22/11/2019 15:47:28:

Assuming that the stud was screwed in from the top, stud removal tools may mark the thread, especially if the stud is tight / corroded into place. But, if the stud is never going to be re used, damage should not matter, as long as it comes out without shearing off.

If it does, you are in the "centre, drill and tap" routine, so you need to certain of the thread (Looks like BSW to me? )

Howard.

Yes, Whitworth threads are used on this lathe ( a Pittler) going to attempt removing it tomorrow

vic newey23/11/2019 15:10:48
avatar
347 forum posts
173 photos

I got it out with using the two nuts technique, it took a bit of a pull before it finally gave a crack and then screwed easily out.

I have now fitted a longer one in and all is well!

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

Sign up to our Newsletter

Sign up to our newsletter and get a free digital issue.

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts
Support Our Partners
cowells
Sarik
MERIDIENNE EXHIBITIONS LTD
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

 

Donate

donate