Chipmaster question

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Chipmaster question

This topic has 9 replies, 7 voices, and was last updated 12 January 2019 at 16:18 by Pete Rimmer.

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27 February 2015 at 19:30 #181536
charadam
Participant
@charadam
I posted this on the Yahoo user group, but no response as yet.

Can anyone define the crossfeed screw for me in terms of diameter, thread form, pitch, hand and length?

The lathe is Imperial.

I want to replace the screw soon but cannot strip the lathe at the moment.

Thanks in advance,

Charles
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27 February 2015 at 19:30 #12436
charadam
Participant
@charadam
27 February 2015 at 20:37 #181542
Raymond Hodges
Participant
@raymondhodges20973
Hello Charles

Try this site maybe they can help http://www.lathes.co.uk/chipmaster/index.html

Good luck

Ray

Edited By Raymond Hodges on 27/02/2015 20:38:24
27 February 2015 at 21:13 #181548
Neil Wyatt
Moderator
@neilwyatt
I found a post that says the cross slide screw is a ACME 3/4-5TPI on a Student.

Neil
28 February 2015 at 19:18 #181667
Tony Ray
Participant
@tonyray65007
Charles,

I can tel you that it's left hand twin start. If you are going to replace the screw you would be advised to change the nut as well. You can get these parts from 600 group but may find Robert Pringle based in Harlow are cheaper but still prepared for a shock.
11 January 2019 at 18:56 #390584
norman royds 2
Participant
@normanroyds2
I ALL having trouble with my Colchester chipmaster clutch is slipping but I don't think it is the clutch there is a lot end play in the shaft it self and the clutch housing .and there is no information in the manual that I bought from tony Griffiths or in manual that came with it .so is there anybody out with the information that can help me there must be some worn parts or bearing I thought it was the variator but I have changed the oil in variator . thanks in advanced for any information regard nome
11 January 2019 at 20:33 #390598
Emgee
Participant
@emgee
Charles, have looked at the manual and can only advise part numbers, but there is a choice of Eng or Met and std or anti-backlash nuts.
The manual is available on Yahoo Groups Colchester Lathes group.

Emgee
11 January 2019 at 21:13 #390602
norman royds 2
Participant
@normanroyds2
thankyou I will have a look on yahoo regard norm
12 January 2019 at 13:50 #390704
norman royds 2
Participant
@normanroyds2
No look on Yahoo page seems to be out off use .I have tow manual but no technical information I look on ebay and the manual look the same has so back you hope you can help me regards norm
12 January 2019 at 16:18 #390728
Pete Rimmer
Participant
@peterimmer30576
I think the chipmaster is the same as the Bantam, 9/16" diameter 10tpi pitch .200" lead left hand 2 start. I could possibly be able to knock out an EN8DM threaded blank to splice into your screw but I'm really busy right now. They are expensive because of the integral gear which I could also probably hob but if it is the sliding spline type, I have no cutter for the spline.
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