Colchester Bantam topslide gib adjustment

Model Engineering in UK - Model engineering, metal crafts in UK 

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Colchester Bantam topslide gib adjustment Martin Whybrow 08-12-2008
Posted by Martin Whybrow on August 12, 2008, 6:31 pm
Please log in for more thread options


As per my previous post, I've just rebuilt my Bantam's topslide and I'm not
100% certain about adjusting the gib. The Bantam's topslide has an angled
gib which forms one of the dovetail sides rather than a separate gib strip;
the gib is attached to the underside of the topslide body by 4 no.10
capscrews and has 4 grubscrews in the topslide body acting against the gib
for adjustment. It seems to me that if I tighten the 4 capscrews, the
adjusters won't work but I'm worried about leaving these screws loose as
there are no spring washers to prevent the screws loosening further.
Can anyone tell me the correct procedure for adjusting these (it's not in
the manual, or at least not on the pages I have)?
Thanks,
Martin
--
martin<dot here>whybrow<at here>ntlworld<dot here>com



Posted by David Croxford on August 19, 2008, 4:09 am
Please log in for more thread options


On Tue, 12 Aug 2008 23:31:56 +0100,
> As per my previous post, I've just rebuilt my Bantam's topslide and I'm not
> 100% certain about adjusting the gib. The Bantam's topslide has an angled
> gib which forms one of the dovetail sides rather than a separate gib strip;
> the gib is attached to the underside of the topslide body by 4 no.10
> capscrews and has 4 grubscrews in the topslide body acting against the gib
> for adjustment. It seems to me that if I tighten the 4 capscrews, the
> adjusters won't work but I'm worried about leaving these screws loose as
> there are no spring washers to prevent the screws loosening further.
> Can anyone tell me the correct procedure for adjusting these (it's not in
> the manual, or at least not on the pages I have)?

FWIW, on my Chipmaster, I used the cap screws to lock the gib after adjusting
it with the grub screws. The clearance holes for the cap screws seemed large
enough to allow for a little adjustment whilst still pulling up square. I've no
good reason for doing this except that it seemed the only thing I could do.
I have a complete Chipmaster manual, and that makes no mention of the correct
procedure either. Of course, tightening up the cap screws affects the
adjustment, so it's necessary to go ever everything a few times until it turns
out right. Rather like tappet locknuts, really.

--
David Croxford GPG key I.D. B49B6C9A

Similar ThreadsPosted
Colchester Bantam April 25, 2008, 5:40 pm
Balls! Bantam lathe topslide rebuild August 12, 2008, 6:25 pm
Bantam Bearing Adjustment February 9, 2008, 7:03 am
Colchester Student Lathe February 12, 2008, 5:48 pm
Harrison/Colchester index ring May 26, 2008, 2:28 am
Re: Bantam in a Van? February 28, 2008, 11:15 am
Re: Bantam in a Van? February 28, 2008, 11:38 am
Re: Bantam in a Van? March 2, 2008, 6:12 pm
Re: Bantam in a Van? March 3, 2008, 4:58 pm
Bantam Headstock Sleeve Question April 14, 2008, 4:06 am

Contact Us | Privacy Policy

XML SitemapXML Sitemap