Kossel anti-thrust hard bed leveler and holder

thingiverse

These bed holders are designed around Anycubic Kossel bed and frame. Its frame has been made out of aluminum extrusions, allowing it to be held in place by bolts. Its bed features three 3.1mm holes. Kossel printers are awesome but they have a few peculiarities. One of these is that the bed is round. The problem that follows is that it can rotate. However, for quality printing, it shouldn't. I made this mount for Kossel bed to finally mount it firmly, allow precise leveling, let it be removed and placed back easily (in case you want to store items under the bed), and just print reliably. Warning: This is a hard springless mount, which means that if your nozzle contacts the bed, it will be damaged (either nozzle or bed or both). However, there is zero wobble under any load. To assemble this thing, you'll need: * Original mounting nuts and bolts (it's six M4 bolts; if you don't have any, it was designed around default Anycubic bolts, so it's extra 4.5mm on top of your frame). * Three M3 10-20mm bolts and six M3 hex nuts (one bolt and two nuts per mount). Pick the model for your bolt length; every model should work for up to +3mm bolts, so if you have 15mm bolts, try models for 12 and 14mm, but 10mm may be too short and 16mm will be too tall. Push nuts into nut sockets and screw everything together (from bottom to top: bolt, mount, nut, wheel, nut). Now, screw those assemblies to your frame but don't tighten bolts yet. Put the bed on those mounts; M3 bolts should go into the bed holes. Now, when everything is assembled but still loose, gently pull one of the mounts and tighten its mounting bolts. Repeat for another one, then for the last one, pull it a little bit less gently before tightening. The point is to make contact of M3 bolts to the bed firm enough not to let it go anywhere, but not too firm so that the bed can still be leveled and also taken away. M3 bolts are slightly smaller than those holes, so you'll need to tighten the mounting a bit; once you do this right, it will make wonders. **Please note that the license for this thing is GNU GPL v3**, not v2 as falsely claimed by this website. Source files will be provided on request.