Comments needed for this design...thx!

[mvaughn]

Originally Posted by andyew Btw, suddenly i have another idea for the linear motion, i might use square steel solid rod (instead of stainless steel round pipe) AND skate bearings mounted perpendicular to each other on L-bracket (********** design). I think it's better than using ROUND rod/pipe because the bearing will roll across over wider "contact surface" and thus less pressure (force/area). This will reduce the wear on the rails (solide steel square rod in this case)....

I think most people here will tell you that using square tubing for bearing rail is dis-advantagous. It allows for contaminate buildup which could fill up and stop your bearings.