Prusa i3 Adjustable Spool Holder

This is a remix of two great designs which I very much like.The Hex Design Toolless Mounting Spool Holder and the adjustable Filament Spool Holder. I really wanted a spool holder that could be easily adjusted while sitting atop the Prusa frame. So I have created a remix of these two designs to give an adjustable holder which clips to the top frame, uses bearings with sleeve rollers to ensure your filament spools stays in place and glides in a straight line.

This new design is easy to print as it is printed in separate parts, with minimal supports required. You will need the following hardware to fix the parts.

4x M3 12 - 14mm socket head bolts
4 x M3 hex nuts
4 x 608zz bearings

Simply Push the vertical arms into the base connecting the lugs with the appropriate holes. Next, place the nuts into the slots on each arm (x2 per arm) , Prusa style :), and bolt through the base. Then simply slide the end part onto the base, screw in the screw thread with thumbwheel and attach