Burnerd LC-15 collet chuck on Boxford 280

[GavlarParticipant @gavlar]

I recently purchased a S/H Burnerd LC-15 collet chuck and collets for use on my Boxford 280. The chuck was I believe originally from a Colchester Chipmaster so whilst it has the correct D1-3 fitting, the anchor bracket is of course wrong.

Milling a new bracket to correctly seat on the ways is currently beyond my skill and equipment level and I've not been able to source the correct bracket.

The Burnerd website doesn't seem to be of much use, though I haven't contacted them directly.

Can anyone advise me where I can get the correct bracket or should I just bite the bullet and buy a key operated chuck?

Thanks

Gavin.

[GavlarParticipant @gavlar]

[David George 1Participant @davidgeorge1]

Hi Gavin welcome to the forum. I have used one of these many years ago but I have no idea as to the size as it was on a Colchester student but I remember the bracket was bolted to the headstock and there was a headed pin to drop in when fitting it. I hope someone with a collet chuck will be able to give you information.

David

[GavlarParticipant @gavlar]

Thanks David. I see no reason why making a bracket that bolts to the head stock wouldn't work. I had already considered it but I didn't want to drill and tap the head stock if I could help it. There is plenty of meat on the head stock and as the bracket's only job is to give the lever a pivot point this may well be the simplest solution. Thank you.

[old martParticipant @oldmart]

I believe there is a link between the collet lever and the lathe headstock or bed.

[GavlarParticipant @gavlar]

Yes, I think that's right. That bracket of which I speak would simply secure the link between it and the chuck. Thanks.

[old martParticipant @oldmart]

The anchor point for the link could just as easily point towards the tailstock as the headstock. It might be possible to fabricate a clamp on fitting like a saddle stop to provide the anchor point, as long as it doesn't get in the way.                If you need to drill and tap the bed, 6mm would be plenty big enough, and the hole could have a grub screw in it just under flush when the collets were not in use.

Edited By old mart on 17/12/2019 13:35:17

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