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# The Arm doesn't move, only filament comes out

The working start points are different for G-codes generated by Rotrics Studio and third-party software. 

For G-code generated by Rotrics Studio, the working start point is X0 Y300. So when 3D printing with the touchscreen, you need to set `G92 Z0 E0` (Set WorkHeight). 

For G-code generated by third-party software, like Cura, the working start point is X0 Y0. So when 3D printing with the touchscreen, you need to set `G92 X0 Y0 Z0 E0` (Set WorkOrigin/ Set Origin).

If you set the working start point wrongly, the Arm movement will beyond limits, or when you click `start` to start printing, only the filament squeezes out, the Arm won't move.