I liked a few of the spool holder designs meant to sit beside the printer but figured if I could make a plate base to attach to the top of my Folgertech Prusa i3, I would be able to use those style spool holders
update printed and it fits very snuggly. with some sanding the bracket held firm.
spool_plate_for_top_of_prusa_i3_folgertech.stl | 26.9KB |