Wheels on PRT

[donclifton]

Did the PRT have eccentric bushing in the wheels that run on the XY rails. I purchased a old PRT and it doesn't have them.
Thanks
Don Clifton

[Brady Watson]

No. Concentric on XY. Eccentric on Z.

-B

[donclifton]

Eccentric, concentric is a cone.
Thanks Brady
Don Clifton

[jzarski1]

You getting that PRT put together Don? Gonna need to pick your brain a little in a few days.

John

[donclifton]

no problem, I have the Z operational with a new rack and gear and motor, a new gearhead built with motor for the x shopbots Y. I will get the steel for the table next week.
Don

[Brady Watson]

Concentric objects share the same center, axis or origin. Circles, tubes, cylindrical shafts, disks, and spheres may be concentric to one another. RE (http://en.wikipedia.org/wiki/Concentric)

-B

[donclifton]

your right, I was thinking of like a concentric bushing were on side is smaller than the other verses a bushing were one side is offset like a steam bushing.
thanks
Don Clifton

[Ajcoholic]

concentric = on center
eccentric = off center, or some of the forum members here! :D