Clamp Set for T-Slot Worktables (M5)

thingiverse

This set is based on Reversible Hold-Down for T-Slot Tables by WorksBySolo. I added curved faces on the underside of the holddown clamp in order to better distribute the clamping force. I also added a low profile brace as well as an insert piece to ride in the slot, and a knob to hold it all together. The Knob and the Slot Insert both have M5 nut traps that print upside down. In those cases I add a thin layer over the screw hole which must be removed with a drill or other sharp tool. This causes the top (bottom?) of the nut trap to print as a bridge rather than an overhang and results in a cleaner print. You will need a M5 x 70mm hex head screw for each Clamp and an M5 x 25mm hex head screw for each Brace. The screws however each press into a Slot Insert piece and then point upward when in use. On the top of the Knob you should press a nut into the recessed nut trap after drilling out the extra plastic thin layer. For me it helps to have the nut threaded onto a long screw while I do that in order to make sure it is straight. The nut traps are a bit snug intentionally, I heated the nut and/or bolt for about 15 seconds with a butane lighter and they slide into place easily. As an optional bonus I also used heat and pressure to press a washer into the bottom of the Knob. However after doing that I had to drill out the hole in the knob using a 5mm drill. I ran the drill motor in reverse so as to not damage the nut which was already in place. It also helps to use a tap on the trapped nut to clean the threads of any excess plastic.