Linear Motion

This is project is for a shop window display – two signs move up and down alternately.  Using some linear slider kits from ooznest I made a few aluminium pieces to allow them to push up and down some 6mm OD rod.  A teensy micro and some stepper drivers in a box does the control, with a limit switch at the motor end. A calibration routine on startup lets controller work out where the carriage  is and then back off the limit switch like the CNC router does.

Its a bit loud, I’m going to add some of those rubber anti vibration bushings to mount it on.


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