Servos speed too fast so used Ejjduino_ARDUINO/ and added VarSpeedServo to save the pen tips.

Didn't detect Arduino so modified eggbot2.8.0 ebb_serial.py if port[1].startswith("EiBotBoard") or port[1].startswith("Arduino") or port[1].startswith("/dev"):

In ~/.config/inkscape/preferences.xml, find

and change it by adding coordinatesL