20x20 Extrusion profile

thingiverse

So had a thought about a lock down project and need some 20x20 extrusion, decided to make it. This is a standard 20x20 profile for aluminium extrusion, 6mm wide channels, and fitted for standard 20x20 strut nuts. I intend to print it upright, so just adjust the z height in your slicer (just z) to whatever length you can or want to print. You are obviously free to print it in any orientation you like, but apart from vertical, any other orientation will need fairly extensive supports - and I am not bothered to spend my time removing supports. Now if you have an SLS or binderjet printer, that's a different bucket of squid entirely, knock yourself out. There are printable strut nuts on Thingiverse that work with 3mm nuts - those are ideal for this profile. I've also included 30x30 and 25x25 profiles that use the same size channelling - for heavier duty frames that use the 20x20 standard nuts and accessories. Added 20x40, just two pieces of 20x20 side by side, did it in the slicer - but you know, adding it costs nothing. 8-10-2020: Added 20x20 V-slot profile, one with shallow v and one with a deep v.