TwoUp custom MacGyver Filament Holder Posted on June 28, 2014 by Ianmcmill Okay this might not support 3kg spools. Not even 1kg spools but it is perfect if you still don’t have a spool holder but want to print one. Some left over copper wires and a office clamp are enough for 10-12 meters of filament. MacGyver Filament Holder Do it! :RedditTwitterTumblrPrint