20x20 Construction Set

While working on creating a stabilization solution for a closed source printer, I decided to use 20x20 based rails but since I didn't want to purchase metal rails, I leveraged a few things to create a construction set.

Current pieces include:
+ 20x20 rail (scale Z to desired length)
+ 20x20 inner gap fill (scale Z to desired length)
+ 20x20 nut (M3)
+ 20x20 drop-in nut (M3) - No hex nut needed
+ 20x20 nut (M4)
+ 20x20 rail connector (M3) (2 nuts with a 5mm bridge)
+ 20x20 rail connect