See Determining job starting point.. struggles - #6 by azab2c
Estlecam settings Screenshot from the docs shows arc setting checked. But on this one thing, I ignore the Docs and uncheck that setting . Should only need to configure Estlcam settings just once. Then all subsequent gcode toolpaths generated by Estlcam will not contain the g02/g03 arc codes that Repetier struggles to interpret.