Corner bracket for 20mm aluminum square tube

thingiverse

I designed this adapter when building a low-cost printer frame that required two (or three!) twenty-millimeter aluminum square tubes to be securely attached. You can see their intended purpose in the accompanying photo, even if it's not presented from the optimal angle. However, I'm confident you'll get the general idea. This adapter comes with the original FreeCAD source file included for your reference and modification needs. Assembly is straightforward: Just print out this part according to your chosen specifications and use it as required.