Which type of bearing to use?

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I wonder if a TV mount could be adapted to do the job? This one on sale is $20Cad and as long as it can be loosened enough to move freely and a holder made for the tool shaft I think it would work. I'm not trying to get the OP to change course but it might get the creative juices flowing for someone else thinking about making one.

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Pete
Ah! my mind was working along the same lines :) I did look at one I have at home , but I found i would need to dismantle two of them to get all the parts needed. And, at full extension - on the particular one I have-, there is quite a bit of play
 
Ah! my mind was working along the same lines :) I did look at one I have at home , but I found i would need to dismantle two of them to get all the parts needed. And, at full extension - on the particular one I have-, there is quite a bit of play
The one we have has over a foot of travel from closed up to stretched so I think it would be plenty for most anything I would play with. Since it would be used with the tool rest I don't know if a little droop would be an issue. Might have to try someday and see.

Pete
 
Ah! my mind was working along the same lines :) I did look at one I have at home , but I found i would need to dismantle two of them to get all the parts needed. And, at full extension - on the particular one I have-, there is quite a bit of play
Some TV supports are designed for really big/heavy screens, so may well be sufficiently heavy duty.
 
Thought I'd post a picture of the finished job. Very pleased with it. Moves easily, and no detectable play.
20230325_180107.jpg


20230318_163217.jpg
 
Just to add, ordinary bolts or threaded rod isn’t the best solution. I’d probably use socket shoulder screws.

I would also drill, then ream any holes to size.

IMG-8020.jpg
 

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