20mm t-slot 90 degree joint
by jamesglanville, published
I'm upgrading my prusa2 to a mendelmax, and I didn't want to drill the holes in the t-slot at the top (at uni, no access to decent tools). I saw a 90 degree joint on thingiverse (the one listed as a parent thing), but I wanted to make some improvements:
Built in support - with such a simple part I much prefer designing in support, then printing with no support in the slicer. I find this uses less plastic, and is easier to remove.
The ridge that sits in the t-slot is continuous between the two rods - guarantees perfect alignment.
The scad file is horrendous - not parametric at all, I just wanted to throw it together quickly.
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Snap off the support with pliers or a knife.
Push into t-slot, and bolt in.
I printed mine a little too hot, so I had to slightly file the ridge to get it to fit, and the overhand at the top drooped a little bit, but it works perfectly.