Thicker Prusa Spool Holder

This is a quick remix of the Prusa provided spool holder (B4). 

Added an extra 10mm thickness to the overall width of the original design  to add more rigidity. 

The clip on portion also benefits from an additional 10 mm to snap onto the frame.

I printed in PETG, 4 Perimeters, 20% Gyroid Infill….very sturdy now especially with full spools