T-slot for 30 x 30 Aluminum Extrusion (updated)

thingiverse

This is an update of the previous made T-slotted counter-part for a 30mm t-slotted aluminum extrusion. What I realized is that you don't necessarily need an M6 nut. What you can actually do is to print the hole smaller and just put an M6 screw in. There is enough material that will act as a thread. What I also recommend is to use a drill tap to make the threads (see picture). Since 6mm and 1/4'' are close together, I'm sure you can use this design as well in case you prefer 1/4'' screws. I also made an assembly of 8 pieces together that can be printed as a combination.