Snapmaker 2 A350 Printsheet fixation bracket

thingiverse

The Snapmaker 2 magnetic print sheet is prone to be dislocated in case the nozzle gets caught on some warped or overextruded part of the print. This causes layer shifts and failed prints. Remixed from brackets designed to hold a glass plate in place, these brackets hold the magnetic print sheet in place, more rigidly than the magnets alone. The brackets do not extend higher than the print sheet, so no danger of nozzle collisions. This is designed for the old printing platform, for the new you need to remix again. Each bracket can be tightened to the platform by two M4x8 screws from the bottom, even with the print bed screwed in from the top. In the back the heated bed in my case protruded 1 mm more than in the front - I assume that this is the same for all printers, but you may want to check. I checked with two print sheets I had, and both fitted perfectly - I've no idea how large the tolerances are for the print sheet - hopefully it fits for all. I also attached the laser grid platform and the wasteboard for CNC with the brackets on - works! For the laser grid table there's a collision between the M4x8 and the M4x10 screw for the corner holes. Either leave the hole unscrewed, or use another 4 M4x8 screws there.