3dfused Linear Rail Improved Belt Clamp

thingiverse

Like most of the parts on 3Dfused.com's linear rail kits, the belt clamp is a major disappointment. They used regular nuts inside a pocket with no mechanism to prevent them from coming loose. After some printing time, they can loosen up and create unwanted backlash artifacts in your prints. You'll have to remove your bed at minimum to fix it, which is just frustrating. This improved version replaces the pockets for regular nuts with sockets on the bottom for M3 Nyloc nuts, making it a much better design. It's also straight through and more flexible when it comes to bolt length, unlike the original that would break if the bolts were too long. I highly recommend printing this at 5 perimeters (so you have plenty of walls between the nut and the plate) with 30% infill. Make sure to tighten as tightly as possible (you might even need to use a thread locking compound like Loctite) since you don't want this to come loose or have any play whatsoever. Enjoy, source file included as always.