Posichuck

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rd_ab_penman

rd_ab_penman

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I saw an add in a woodworking magazine for a chuck for turning sqaure stock. I could not find anything in the archives on this subject, so I will ask the question, has anyone had any experience using a Posichuck?

Les in Alberta
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Never heard of posichuck before but like Frank said, we usually turn square wood (or close to it) and use either spur drive or scroll (4 jaw) chucks w/o any problems.

I think it is a gimick tool after looking at their site http://www.posichuck.com/ and posibly be just a fad tool. I will choose a scroll chuck over this anyday ...even the cheap ones.

I personally won't buy it.
 
I have made a few of these for turning wood that had a commmon size and stayed square at the end, the one that comes to mind is one I made to turn pieces for some "inside out" ornaments a year or so ago. Just take a round piece of plywood, mark the size square you want, cut it out, glue/screw to a another round piece and screw to a face plate. I actually made two, one for the drive end and another for the tail stock. It did save a lot of time but wouldn't ever consider buying one, too easy to make or just chuck it up in a 4-jaw chuck. [:)]
 
While not immediately something I'd go after, i can see where this might be useful in a production-line setting. Say you're making banister spindles for handrails. We're talking hundreds of the same sized pieces.

If you're a small shop without the budget (or need) for expensive CNC duplicators and such, you're going to have a human in control of the process. Any time savings will be significant. This product looks like it'd save you 30 seconds PER PART by eliminating the loosening, mounting and tightening of a scroll chuck.

It also saves you time if you use a spur, especially with pommels that require you to mount that bugger perfectly centered on the lathe. That either means you need to accurately mark the center repeatedly and mount it to the drive center, or you need some kind of jig that guides you into center. Either of these is slower than just holding the stick there and tightening your tailstock.

I wouldn't want one, myself. I'd find it useless for penturning (probably). But it certainly seems like a viable timesaver for larger spindle production work. :)
 
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