Castor Wheel on Pipe - Parametric

This parametric support is made to install a coaster wheel on pipe or rod; the support is bolted with n°2 M5 socket head cap bolts;in my case the applcation was to install coaster wheels on bike stand (see photos) without using u-bolt;the coaster wheel is attached by n°4 screws.Keep layer height = 0.2 as there is a fake layer in bolt holes to avoid supports. There are four parameters:distance between screw holes of castor wheel transversal to pipe/roddistance between screw holes of castor wheel longitudinal to pipe/roddiameter of holes to screw the wheeldiameter of pipe/rod, obviously :)