Logitech C270 Camera Mount for Prusa MK2/S and MK3, with wide angle lens support.

thingiverse

UPDATE 3: I've upgraded it with an MK3 version of the arm. If it's still too tight, you can easily fix this by sanding down the top of the "fork" - that's the piece between the heatbed and Y-Carriage. Keep in mind that how well it fits will depend on your settings and material. UPDATE 4: I've added a new frontplate to support a 12v, 40mm LED ring with a cover. The updated parts for the C270 camera mount now work with a cheap wide angle lens. To make this work, you'll need an extra M3 screw (and possibly a washer if the head is small) to attach the camera to the arm. You'll also need an M4 screw to adjust the vertical camera angle. The frontplate and backplate require two ~m2.5x12 screws, although I used two small m3 wood screws that worked just fine. I made these changes because the original design was hard to keep aimed and kept bumping into the extruder assembly during auto calibration. The arm has been modified to fit the MK2S buildplate, shortened, and made in one piece - this removes the need for a printed plastic screw. I've also added two slots on the back for zip ties. The mount that screws directly into the camera now has a groove removed. The camera parts (back plate, front plate, and focus ring) have been modified to support a wide angle lens. I used a cheap magnetic lens designed for cellphones.