Ender 3 15mm Solid Bed Mounts

thingiverse

These are 15mm solid bed spring replacements that stand out from others which typically come in at a taller 20mm. The cable strain relief piece is designed to work seamlessly with johnniewhiskey's cable chains. Solid bed mounts generally require the use of auto bed leveling systems for optimal performance. To center the actual mounts on your slicer model, move it to X: 7.264 mm and Y: 26.314 mm to ensure they are as close to the same height as possible. Printing with PETG at 100% infill is recommended due to its stability, while PLA may melt too quickly and ABS has a higher thermal expansion/compression ratio that could throw your leveling out of range. I installed these mounts by placing a silicone o-ring on top, sandwiched between the mount and bed, then leveling the bed with standard leveling wheels compressing the o-ring. I used my BLtouch and Octoprint's bed level visualizer to dial it in perfectly, and once satisfied, added 4 more nuts and torqued them up against the leveling wheels to lock them in place. The wheels would loosen rapidly with normal bed motion during a single print, but adding the o-ring technique and lock-nuts resolved this issue.