arduino 2560mega+ramps 1.4 with drv8825 drivers for focuser?

[alf david fjeld]

hi guys, i like all diy astronomy projects, and have a arduino 2560mega+ramps 1.4 with drv8825 drivers laying around after i upgraded my diy 3d printer, i also have a nema 17 motor from a 3d printer that i dont use.
are there any way i easy can set this up as a focusermotor?
the boards should be more than capable i think?
any suggestions will be appreciated.
alfi

[brownrb]

The code will run on the Mega. The code already supports DRV8825.
driver board.

For the stepper motor, it will depend on the current rating... I would assume that its low enough to be a leftover from a 3d print build using drv8825 drivers. So yes probably.

Working with the HW203_DRV8825 type build, you just need a way to fit things together, either using a protoype board n top of the mega or fir the drv8825 and other things on a sub-board, then wire that board to the required mega pins.

Or you could plug a L293D motor shield into the mega? There are instructions on that build (using a UNO but things are the same) in the pdf.

Cheers
Robert

[alf david fjeld]

hey
thank you for your answer. the mega has a ramps shield on it, with driver controller, and all other in/outputs you have on a 3d printer, like temp sensors, etc. so it should all work as a focuser driver. i will try it out and see what happens :-)