JD MM2 Mendelmax 2 Z isolators

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This update enhances the standard isolators, addressing any misalignment caused by the Z nut. The contact area remains similar in size or smaller than the original isolator, effectively balancing the load on the nut and reducing wobble due to screw movement. This optimization is as much as possible with the MM2 stock plates. Before installation, remove any excess material from the slot and drill out the mounting holes to approximately 2.8mm. The standard screws are sufficient, but a washer between the nut and mounting screw can provide extra support. Disable support material generation. Set the wall thickness at 1mm for both top and bottom layers, with infill density of 20% or higher. Ensure the top ridge has no areas higher than the rest of the ridge; applying gentle sandpaper pressure usually resolves any imperfections. Apply a thin layer of silicone grease to the top surface where it contacts the metal X axis plate.