Hi Group, Can anyone tell me who makes the Woodriver lathe chuck? I need to contact them. I would like to know what the threads are on their adapters because I've acquired a three jaw chuck and need to convert it. Thanks, Jim
They might be the Woodcraft house brand. The woodcraft site has a bunch of "Woodriver" brand items, so you might start there. They might even have a manual on their website you can download and get the information you need.
Failing that, you can check the woodturning newsgroup.
While I've never used one, the horror stories I've heard about 3 jaw chucks make me wonder why you want one. Is there some specific use for which a 3 jaw chuck is better than a 4 jaw?
If not, I'd suggest just getting the Wood River chuck. I've got one and it works fine. The only limitation is that there aren't many different jaw sets for it. It comes with #2. AFAIK, a #1, a #3, and a small Cole jaw set with 8" capacity are it.
I have both wood and metal lathes. Metal Mill etc. Both lathes have 3 & 4 jaw. The wood also has a nice wood chuck that is a 4 step jaw ... type.
3 jaw is a fast self centering chuck. A universal concept.
A 4 jaw can be magic! You don't have a true cylinder to chuck ?! A 4 jaw can hold lots of stuff and even hold it to the an offset because of need instead of kicking the taillstock sideways.
So a 4 can hold odd shape - and have jaws at unique positions. In fact one can use only 3 jaws in the 4 having one so far from the wood it can't get there.
I did e-mail Woodcrafters and the adapter is a 33mm X 3.5 pitch thread. I'm having a machinist made me an adapter that is 3/4"x16tpi (may lathe spindle) to 1"x12tpi( the chuck) which was cheaper in the long run. I will be using it to bore holes and turn small wood parts. The price was right is why I got it. Jim
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