Hey everyone,

I built a polargraph with arduino MEGA R3, a cnc shield, a servomotor and two nema 23 steppermotors.

The arduino is powerd by a power supply of 12v 5A and a BEC convert 12v to 5v.

The system have a 2G SD and no screen.

When I generate the norwegian pixel technique ... everything works perfect.

But if I try to draw vectors ... with files that weigh 1 or 2 megabytes, the process break after starting at random points.

As a curiosity, if I touch the mass of the SD reader with my hand ... the work is resumed.

I suspect that it is some fault in the reading of the SD, did any of you have the same?

Thank you very much!

Yes ......only happen with SD