: linear bearing based on ground flat stock

In a message dated 5/22/2006 7:10:28 P.M. Mountain Daylight Time,
eexgs@... writes:

If you set the edges of the bar vertical, they could be mounted all

> along one horizontal side with a narrow web type of mount.

I don't get you?



If two edges of the bar are mounted vertical and the pulleys on the top and
bottom, a mount cold be brought in from the side.

Yes but you still need three, the resistance to rotation in the axis
normal to the rail will be small otherwise.

Why would that be? To rotate around the bar, with two V pulleys, you would
have to deflect two surfaces where the pulleys are riding???

IMHO
bill




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