Chucks

This topic has 9 replies, 6 voices, and was last updated 7 October 2013 at 19:16 by Michael Gilligan.

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6 October 2013 at 21:14 #22878
Alan .204
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@alan-204
Advert

6 October 2013 at 21:14 #131873
Alan .204
Participant
@alan-204
Is a D14 camlock chuck the same as a D1-4 chuck.

Al.
6 October 2013 at 22:06 #131880
Frank Lake
Participant
@franklake15160
My lathe takes D1-4 chuck fitting. It has 3 pins 15.88mm dia as per this list

http://www.scottmachinery.co.nz/accessories.php?s=830&ss=1570&scode=WEB-CAMLOCK%20SPEC

Another valuable reference page is

http://shopswarf.orconhosting.net.nz/sindex.html

sixth line down. Lots of other stuff here.

Frank
7 October 2013 at 08:54 #131898
Michael Gilligan
Participant
@michaelgilligan61133
Alan,

Please forgive me for hi-jacking your thread, but this seems an appropriate place to ask the question.

I have a lovely "MultiSize" collet chuck, in D1-3 fitting, but presently have no room to accommodate a Colchester Bantam or similar lathe.

Can anyone suggest a design for fitting this chuck onto a Screwed-Nose lathe spindle?

I realise that this is far from ideal, but it would allow me put the chuck to use!

Note: I am happy to dismantle the chuck, but not to butcher it.

MichaelG.
7 October 2013 at 15:41 #131943
Sub Mandrel
Participant
@submandrel
THIS may help you make an adaptor, but it doesn't explain the locking mechanism.

Neil
7 October 2013 at 16:05 #131948
JasonB
Moderator
@jasonb
As the camlock studs screw out I wonder if it would be possible to use their holes to take 3 custom made bolts to hold the chuck to a suitable backplate which can be threaded for your existing lathe. The backplate would just need machining like a D series nose to locate into the back of the chuck.

J

Edited By JasonB on 07/10/2013 16:05:45
7 October 2013 at 16:36 #131953
Alan .204
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@alan-204
Thanks for the reply's chaps that answered the question.

Al.
7 October 2013 at 16:54 #131954
Michael Gilligan
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@michaelgilligan61133
Thanks, Neil & Jason

MichaelG.
7 October 2013 at 18:46 #131965
Muzzer
Participant
@muzzer
I'm currently machining a D1-3 "Camlock" spindle nose adaptor that will allow me to use all my lathe chucks, faceplate etc (inc my Multisize collet chuck) on the milling machine table or rotary table. I can tell you it's a pretty complex business and not one to be undertaken lightly.

The Camlock mating surfaces are very critical and you need to machine both the taper and the mating faces to great accuracy if you want decent location (runout). The pins mainly act in tension to keep the taper engaged – and as brute force torque drivers.

The cam design is quite involved. I've almost finished the main body and I'm expecting the cams to be quite "interesting" to produce.

I have the full std and drawings for the Camlock series, courtesy of some detective work by John Stevenson and I also have 3D CAD part models and 3D assemblies now for the parts I'm making, if you want to get a better feel of what's involved.

You might get lucky and find a screw version if you advertise on these pages, then you could shift your D1-3 similarly. That would be a lot less work!

Muzzer
7 October 2013 at 19:16 #131969
Michael Gilligan
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@michaelgilligan61133
Muzzer,

Many thanks for this !!

I would greatly appreciate copies of your files, if only as a warning!

eMail address in PM

MichaelG.
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