3DFused Stepper-Shaft support and Adjustable End Stop mounting bracket

thingiverse

I was looking for a better way to attach the x-axis end-stop switch with my 3DFused kit for CR-10s. I didn't find anything good, but I saw this thing and was inspired: https://www.thingiverse.com/thing:4065896 However, it didn't work with the endstop bracket from 3DFused and I also had no fitting bearings lying around. So I designed my own thing as a two-in-one stepper support with an adjustable bracket for the end-stop / x-limit switch. I think it turned out okay. I printed this in PETG with flat sides down (see picture). I had to manually place supports inside the slot of the end-stop bracket because I can't get good bridges with PETG. Print with lots of perimeters and solid top and bottom layers. You want this basically solid. You'll need a bearing and some M3 screws and nuts. 1 piece of 4x11x5 bearing 4 pieces of 30mm M3 bolts 1 piece of 8mm M3 bolt (for attaching the end-stop bracket to the support) 2 pieces of 4 or 5 mm M3 bolts (for attaching the end-stop switch to the bracket) The bearing should be at least 4 mm high, exactly 11 mm outer diameter and 5 mm inner diameter to fit the shaft. I used a small flanged bearing for this. It should be a pretty tight push-fit into the hole. You'll use the longer M3 screws to fasten your stepper motor through the holes in this shaft support bracket, with the x-axis plate in between. The screws I had lying around were longer than necessary so I used some spacers and washers on the top side. Don't put any washers between the bracket and the x-axis plate. Make sure that the the shaft support bracket is oriented with the filled side down. That's the side with the little groove in it. You'll mount the end-stop switch to the bracket using button-head M3 screws of 4-5 mm in length. Finally you'll attach the end-stop bracket to the shaft support bracket, fitting it to the groove on the bottom, and securing it with an M3 bolt. Slide an M3 nut inside one of the slots on the shaft support and pass the bolt through the elongated slot in the end-stop bracket. Don't tighten the bolt until you've adjusted the endstop position.