Hi everyone,

I just finish the mechanical structure for the H-bot 3D printer. When I connect the mainboard and power it up, it has a problem. When I control the movement by LCD, It's not independent moving, it means when I move X-axis the Y-axis will be moved following and reversed. When I moved the axis manually by hand, it's ok. Does anyone know how to re-calip the printer or how to fix this problem?

The attachment is the structure of the H-bot I build and the firmware