nanoDLP

hybrid836

Member

Registered: 2020-11-10

Posts: 5

Z-axis Direction

Hello,

I am developing an LCD printer using NanoDLP RPi3 build 4144. I'm controlling the stepper motor using the NanoDLP shield V3.

After setting up the GPIO and testing the manual Z-axis control, when I press "1mm ⇧", the platform moves downward (towards the LCD/vat). When I press "1mm ⇩", the platform moves upward (away from the LCD/vat).

I tried switching "Shield Axis Direction", but there was no difference.

Do I need to adjust the direction pin on the DRV8825?

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,546

Re: Z-axis Direction

Setup zero point also, you can change direction pin too, but first make sure about zero point.

hybrid836

Member

Registered: 2020-11-10

Posts: 5

Re: Z-axis Direction

Okay. I figure out the problem was my stepper motor cables were plugged in reversed. I flipped the cables and the motor moves the right way.

Thanks for your help!