About this 3D model

Building on from the great work of u-design. During assembly of Automatic belt tensioner for RepRap Prusa Mendel by u-design i discovered I did not have any mudguard washers. These mudguard washers have a small step close to the inside hole to prevent binding of 608 bearing and washer. Before this I could not get great looking prints (arcs were not even due to constant slipping due to loose y-axis belt). A welcome side effect is the I have decreased the voltage to the Y-axis stepper resulting in cooler running :D Once again thanks to u-design.