Meade ETX 90 Clutch Reapir

thingiverse

I recently acquired an ETX-90 with a computer-controlled mount that presented some challenges. The DEC clutch was slipping, a common issue, and I joined the ranks of those who broke the knurled nut loose on the clutch peg. This is my approach to repairing this model of mount. To make it work properly, I had to modify the arm by removing the existing peg and drilling out its center to accommodate the 3D printed peg. A captured nut was integrated into the print to mate with the clutch knob. The repair works without needing any additional adhesive; it holds securely in place. Print Settings: Printer: Anet A8 Rafts: Doesn't Matter Supports: Yes Infill: 100 Notes: This model imports sideways, and that's the correct orientation. If you print this model with its base flat on the print bed, the captive nut will shear the layers apart when you apply tension with the clutch knob. Printing it sideways leverages the lateral strength of the filament. You'll need to clean up the support material and sand it to fit, but since the print won't be visible, it doesn't have to look polished. Post-Printing: Sand to fit.