Initial Design Clearance Issues

The initial design went from the center body of the mount to the ends of the knobs, with rims on both sides (notched on the inside). Unfortunately, there's a clearance problem with the OnStep drive housing that means the cover needs to be on top, but the knobs for clamping the OTA extend into this space, meaning the surface needs to be on the bottom. The hard-stop finger for the RA also means that the same fixture can't be used on the DEC axis.