Stepper motor adapter for Bresser Hexafoc telescope focuser
prusaprinters
I created this adapter to be able to use automatic focusing during my astrophotography sessions. A small Nema 17 motor is driven by an Arduino running Arduino ASCOM Focuser Pro2 DIY download | SourceForge.net and is controlled by N.I.N.A. Nighttime Imaging 'N' Astronomy – An astrophotography imaging suite (nighttime-imaging.eu).The motor is connected via a belt to a pulley which replaces one of the original focuser knobs. The whole assembly is held in place by the large screw in the middle of the focuser.I added the OpenSCAD files so you can modify the model to fit your needs.EDIT: I uploaded another version with longer holes, this allows for more adjustment.
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