Forum sponsored by:

Portass model s 4 jaw chuck

Portass 4 jaw chuck

Search for: in Thread Title in

Chris Hollingsworth	17/09/2017 20:24:48
12 forum posts	Anyone know where I could get a 4 jaw chuck for the portass. I've had a look on eBay but not sure if they will fit also what will I need to help center this thanks guys
Andrew Tinsley	17/09/2017 20:40:31
1817 forum posts 2 photos	Hello Chris, There are plenty of small 4 jaw chucks around, but you will be lucky to find one that will fit your lathe. You will need to make up a backplate and then fit a 4 jaw chuck to it. Not too difficult, apart from cutting the internal thread to match the lathe. Andrew.
Chris Hollingsworth	17/09/2017 21:21:49
12 forum posts	Do you men cutting the bolts to fit the back plate to the lathe
Andrew Tinsley	17/09/2017 22:28:39
1817 forum posts 2 photos	Hello Chris, I am pretty sure that the Portass lathe has a screw on chuck. I.E The chuck thread engages the thread on the mandrel nose and then screws into place. It is this thread that you will need to cut in the centre of the backplate. I am sure that some Portass owner will correct me if the Portass doesn't have a screw on chuck. Andrew.
Jon Cameron	17/09/2017 22:33:32
368 forum posts 122 photos	As long as the thread hasn't been played with, it should have a 1" BSF thread. You'll need to buy a blank casting for the back plate and machine it in your existing chuck, or a back plate with the same thread already cut. This is then mated to the chuck with the bolts. Then dialled in to reduce run out. Have a search on you tube, but here's one you tubers take on machining a back plate, always find his videos funny and educational. Credit for video to This old Tony. https://youtu.be/uAQLrM1P-YQ Edited By Jon Cameron on 17/09/2017 22:34:16 Edited By Jon Cameron on 17/09/2017 22:40:01

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

*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
Winter Storage Of Locomotives
04/10/2023 21:02:11
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