2020 profile pluggable familly V4 easy print

2020 Serie
20x20 profile extrusion pluggable series
Version 4.0
New feature :

allow Big layerfast printeasy print designno swing control0,2 fit adjust for easy assemble with no post printingeasy assemble...more sizes :20304050100cap 3mm


(nut support not tested )

Version 3.0 => fit tolerance add and 2020 profile desing fully compatible --> http://www.thingiverse.com/thing:1207426

Version 2.0 =>CAD working thing (with no fit tolerance) not fully pluggable with FFF printing