Off Center Chuck Info - Woodworking Talk - Woodworkers Forum
 
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post #1 of 14 Old 11-25-2012, 07:16 PM Thread Starter
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Off Center Chuck Info

Does anyone have the dimensions for this? My father-in-law is going to make one for me. Just need some idea of dimensions
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post #2 of 14 Old 11-25-2012, 08:55 PM
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I'm guessing the larger threaded holes are 1" x 8tpi (since they screw onto the drive shaft of a lathe).

You might be able to estimate the sizes based on that.

If your father-in-law needs the practice, I'd be glad to take a prototype off his hands

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post #3 of 14 Old 11-25-2012, 09:08 PM
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i was under the impression with the way i was looking at it that the faceplate screwed onto those different holes making it off centered
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post #4 of 14 Old 11-25-2012, 09:09 PM
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bad thing is he wasn't asking us how it worked but the dimensions lol
sorry i cant help you
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post #5 of 14 Old 11-25-2012, 09:32 PM
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I don't know the dimensions. I build one myself. I'm trying to learn machining skills and that looked like a worthwhile project. I don't have it in front of me but I think it's about 2 1/4 to 2 1/2" across. It's not a critical thing. Your going to screw a piece of scrap wood to it and then I use double stick tape to fasten my workpiece to the scrap.
I had to make a bushing that acts as a spacer because the hex head bolts I used to fasten the index wheel on stick out to far and hit the chuck I use to hold the threaded rod that goes into the rear of the piece. Not sure what other people do that was just my solution. MY bushing was 3/8" ID and about 5/8" OD. It's about 1/2 long.
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post #6 of 14 Old 11-26-2012, 12:58 PM Thread Starter
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Originally Posted by john lucas View Post
I don't know the dimensions. I build one myself. I'm trying to learn machining skills and that looked like a worthwhile project. I don't have it in front of me but I think it's about 2 1/4 to 2 1/2" across. It's not a critical thing.
I was thinking of 2.5 - 3 inches. I plan on having Dad make a morse taper with a screw end to screw the chuck onto. Kind of like a bottle stopper jig I believe. I will draw out something in Sketchup and see what works for dims.

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post #7 of 14 Old 11-26-2012, 01:01 PM
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Hmmm, people keep unintentionaly giving me projects

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post #8 of 14 Old 11-26-2012, 02:13 PM
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Hmmm, people keep unintentionaly giving me projects
Well unintentional might not be correct. Your projects lead to giveaways and raffles.
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post #9 of 14 Old 11-26-2012, 02:45 PM
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Well unintentional might not be correct. Your projects lead to giveaways and raffles.

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post #10 of 14 Old 11-26-2012, 03:28 PM
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[QUOTE=BradB;403372]I plan on having Dad make a morse taper with a screw end to screw the chuck onto.QUOTE]

Iím certainly not a machinist but I would try to use an adapter or face plate to mount the chuck to (as in welded or other permanently attached). You can use a draw bar with a Morse taper but I would not want to take the chance of buggering up a spindle inside. Lots of forces in an off center work working against that taper.

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post #11 of 14 Old 11-26-2012, 03:40 PM
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I would like to see someone one turn of center. I just don't get it fully but I'm still new to turning.

Good luck with the project.
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post #12 of 14 Old 11-26-2012, 03:48 PM
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I would like to see someone one turn of center. I just don't get it fully but I'm still new to turning.

Good luck with the project.
Mike Hawkins (firehawk) posted pix of an off-center turning he made a year or more back; I think it was a candlestick.

(I tried copying it but the result definitely did not warrant a photograph.)

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post #13 of 14 Old 11-26-2012, 05:38 PM
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If you go to capneddie on you tube, #136 Index faceplate, he can show you some thing's
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post #14 of 14 Old 11-26-2012, 07:35 PM
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Off center turning

This thread from July was off center turning. The lady came and seems to have disappeared after this thread.

It is a good illustration of the very different patterns which can be achieved by having an ability to turn "off center"

http://www.woodworkingtalk.com/f6/ye...d-lathe-40602/
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