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Brian Greb
02-13-2010, 5:51 PM
I have a book on turning Chinese balls(balls captured inside other balls), and hollow balls. In this book they show how to make the necessary chucks... but i have a problem. He recommends English elm for the compression chuck, the stated reason is it resists cracking. I need a good substitute for elm due to it is not readily available locally. any suggestions an what would be a good substitute.

Steve Schlumpf
02-13-2010, 5:55 PM
Brian - I am not the expert when it comes to wood, so I won't be able to answer your question, but it may help others if they knew where you were located.

Brian Greb
02-13-2010, 6:05 PM
sorry I'm located in Tomball TX that's north of Houston

Steve Vaughan
02-13-2010, 6:23 PM
I'm not sure what kind of chuck you even need for that sort of thing, but when you mention something that resists cracking, I wondered if you could create your chuck out of plywood, built up to a correct thickness if you need that?

Ted Calver
02-13-2010, 7:06 PM
How about Mesquite?

Joe Herrmann
02-13-2010, 7:08 PM
Check with Fred Holder at www.morewoodturning.com. He makes a lot of Chinese balls and I'm sure he could help with wood selection.

Joe

Brian Greb
02-13-2010, 7:20 PM
here is a scan of the jig

David E Keller
02-13-2010, 7:45 PM
I would think any dry hardwood would be acceptable... Maple, walnut, Osage, lyptus, mahoghany, etc.

Ryan Baker
02-14-2010, 1:14 AM
That's just a special version of a donut chuck. Pretty much anything would work for that ... hardwoods, softwoods, plywood ... about anything but MDF. In your area, mesquite should be a good option.

Tom Giacomo
02-14-2010, 2:50 AM
I made mind out of hard maple and it worked just fine. Had it for about three years now and no problem.

Bill O'Conner
02-14-2010, 3:58 AM
In the book I got from Fred he said that you could use plywood for the chuck and that if you didn't get it just right could also use car body filler to make it a sphere


Bill

Tony Wheeler
02-14-2010, 4:10 AM
how much elm do you want and what size

Bernie Weishapl
02-14-2010, 9:51 AM
I believe Fred Holder is at www.morewoodturning.net. As was said I think he uses plywood.