T12 Lead Screw Clamp Collar, 6mm Lead, 12mm Diameter

thingiverse

Clamp / Collar for 12mm diameter (T12) Lead Screw, with 6mm Lead. Also have designs for the much more popular T8, and couplings for both diameters - see my other things. Plastic flexes to hold the shaft, needs two M3 nuts and bolts. I used 15mm long. Printing this will be very dependant on the tolerances of your machine. If you find it too tight / loose then try scaling appropriately. Bear in mind that very small differences can have significant results - but also that it should be as tight as it can be, while allowing you to screw it into place. Also note that the thread at the two ends are ever so slightly different - the thread that tapers artificially should be facing up. This avoids flimsy overhangs, and makes it easier to screw into place. I printed in ABS. I designed this and similar other 3D printed parts, for use on a CNC machine I was designing. I use these clamp / collars to hold the lead screw, then compressed two bearings against either side for pre-load. But I am sure there are many other uses! Enjoy.