I have some problems.
R-CNC is almost completed but I'm experiencing some troubles. I'm converting *dxf file in Estlcam and when I'm starting program the machine starts the code but than the electronics (Ramps) is restarting by itself

I don't know what to do. Maybe somebody can help me? Please.
Sometimes it is going ok with the square (for example) but sometimes restarting. When I'm trying to "cut" circle machine is doing strange things I mean everything instead a circle

I'm not cutting yet it's only "dry" run without spindle running etc.
When I'm moving axes by software, all working fine.
Where can be a problem?
Thanks in advanced
Grzegorz