Focuser for telephoto lens
Description
Autofocus functionality for a vintage 200mm telephoto lens, to be used for wide-field astrophotography. The system is designed to be piggybacked on a Celestron telescope. Lens clamp 1 inner diameter is 72.3mm Lens clamp 2 inner diameter is 70.0mm Printed with PETG or ABS, 100% infill, no supports needed. The stepper motor is 28BYJ-48, with a 64:1 gear ratio. Documentation and software for the electronics is available here https://sourceforge.net/projects/arduinoascomfocuserpro2diy/
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