90 degree angle rod connector

This is a pretty generic part that allows you to connects two shafts/rods perpendicular to each other! The 8-8mm version is used in the RepRap for the diagonal tie brackets, to connect the 8mm threaded rod to the 8mm diameter studs.

You can specify the diameters of each of the holes.

In version two you have more control over the sizes of the exterior of the shafts. One of the shafts needs more material, because in the Z-direction the part will be weaker. Shaft 2 can be very thin, configure