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Laser Cut Universal Joint
by RobH, published
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I need a cheap universal joint for a project I am working on so I have been playing with a few options. This is the one that seems the best so far. It is using a plastic ball from a wall track toy which is pretty far from a perfect sphere but it seems to work very well anyway. For the project I will use a cheap 1/2" steel bearing and laser cut the pieces from Delrin which has low friction. I will probably use nylock nuts on the screws to be able to adjust how stiff the movement is.
Video of it here http://www.youtube.com/watch?v=uxKQXoyVtPg
The bearing in these drawings is .722 in (18.34mm) so you will need to scale the holes to suit whatever size bearing you use.
Laser Cut Universal Joint by RobH is licensed under the Creative Commons - Attribution license.
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