Helical Drive Gear for Garage Door
thingiverse
The Overhead brand garage door opener's model drive gear fits 456, 556, and 551. After my son misused the garage door, I realized it needed this replacement part. Although my model is 556, no other testing was conducted. The installation instructions are available as a PDF, while a video showcases its functionality. Initially, I printed the gear in ABS, but struggled with heat balance. Eventually, PLA printing resulted in success. For durability and stress resistance against motor pressure, ensure 100% infill is used.
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