A Collet Chuck for the Colchester Lathe
I recently bought a blank chuck backing plate on Ebay, hoping that it would fit my Colchester lathe. It was $AUD110 plus postage, which, if suitable, would be an excellent price, but it was a gamble. It was old new stock.
When it arrived I cleaned off the old, hard grease, and nervously presented the backing blank to the lathe headstock. It fitted perfectly! The seller had another identical blank backing plate, so I bought that one too. Components for the Colchester are not readily available, so I was very happy with this find.
I had a use in mind for both of the backing plates, and a few days ago I machined up the first one as per the following photos.