Accuracy

Hello,
i finished with my linuxcnc setup and now i have some trouble with the accuracy.
Im using qtDragon and the newest version of linuxcnc (2.9.3 i think).I home my maschine first and after i send it to the G54 g0 x0 y0 z0 and the machine is going there but not reaching exactly the 0 position.
anyone could maybe help me or explain me?
 
 

What type of motion hardware do you have?

I guess a more diagnostic question would be:

Are those the commanded or actual positions?

EC500

well, i just wrote in the MDI field G54 G0 x0 y0 z0 after the gcode what i was simulating.

oh okay, i never heard from that. Im using fusin360 to postprocess my gcode.