About this 3D model

Mine two cents to compensate the plastic I use without need.A simple spool assembler to manage refill on basic commercial spool. In this case sizes are for eSUN spool but it has a lot of screw for height and is possible resize the diameter for others, if you need (in case check overhangs in screws and maintain clearance on 0.30/0.35mm between male and female).Meantime the printer works you can cut the spool choosing the optimal point (don't worry, if the cut is not perfect it allow to find the specular rotation point in the assembly, haha). Cheers