Forum sponsored by:

Acme or not?

Odd thhread

Search for: in Thread Title in

Stephen Follows	26/04/2022 18:32:08
119 forum posts 3 photos	I’m restoring an old vice. The screw looks like an Acme in all respects. Problem is I can’t find it in tables. It’s 7tpi x 0.54 inch diameter. Tables go from 6 tpi to 8 tpi, no 7. I need to make a new spindle and have no idea what change gears to use on the lathe. Anyone come across this thread before? It’s Swiss made BTW.
not done it yet	26/04/2022 18:59:57
7517 forum posts 20 photos	Are you sure it is not metric? Swiss made, so likely?
JasonB	26/04/2022 19:02:53
25215 forum posts 3105 photos 1 articles	Diameter falls within TR14 max/min but pitch is between the usual 3 or 4 mm
DC31k	26/04/2022 19:06:00
1186 forum posts 11 photos	If it is Swiss, is there a possiblity it could be metric, trapezoidal form? The dimensions are not so far off 14 x 3.5mm pitch. How are you measuring the pitch? If you measure over 21 threads, do you get exactly 3 inches? You would have to tell us what lathe it is in order for us to advise on gears.
not done it yet	26/04/2022 20:18:09
7517 forum posts 20 photos	Posted by JasonB on 26/04/2022 19:02:53: Diameter falls within TR14 max/min but pitch is between the usual 3 or 4 mm Yes, 3.5mm near as dammit isto swearing.🙂
Michael Gilligan	26/04/2022 22:10:09
23121 forum posts 1360 photos	Rumour [or at least a discussion on hobby-machinist] has it that the Kurt D60 screw is 7tpi stub ACME LINK https://www.hobby-machinist.com/threads/harden-kurt-vise-screw-threads.24385/ MichaelG.

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

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

Latest Forum Posts

hemingway ball turner
04/07/2025 14:40:26
*Oct 2023: FORUM MIGRATION TIMELINE*
05/10/2023 07:57:11
Making ER11 collet chuck
05/10/2023 07:56:24
What did you do today? 2023
05/10/2023 07:25:01
Orrery
05/10/2023 06:00:41
Wera hand-tools
05/10/2023 05:47:07
New member
05/10/2023 04:40:11
Problems with external pot on at1 vfd
05/10/2023 00:06:32
Drain plug
04/10/2023 23:36:17
digi phase converter for 10 machines.....
04/10/2023 23:13:48
More Latest Posts...
View All Topics

Support Our Partners

Shopping Partners

Subscription Offer

Latest "For Sale" Ads

Reeves** - Rebuilt Royal Scot by Martin Evans
by John Broughton
£300.00
BRITANNIA 5" GAUGE James Perrier
by Jon Seabright 1
£2,500.00
Drill Grinder - for restoration
by Nigel Graham 2
£0.00
WARCO WM18 MILLING MACHINE
by Alex Chudley
£1,200.00
MYFORD SUPER 7 LATHE
by Alex Chudley
£2,000.00
More "For Sale" Ads...

Latest "Wanted" Ads

D1-3 backplate
by Michael Horley
Price Not Specified
fixed steady for a Colchester bantam mark1 800
by George Jervis
Price Not Specified
lbsc pansy
by JACK SIDEBOTHAM
Price Not Specified
Pratt Burnerd multifit chuck key.
by Tim Riome
Price Not Specified
BANDSAW BLADE WELDER
by HUGH
Price Not Specified
More "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