Spool Holder for 2020 extrusion

I found this spool holder and thought that if two holes were removed it could be attached to the 20 x 20 extrusion... and this is what I did. Remix of http://www.thingiverse.com/thing:254796

I printed it in PETG but I'm sure that ABS or PLA would be the same. 15% infill and .2mm height. I'm sure that .3mm would be fine but this printed exceptionally well and smooth.