Thanks for the comment, we’ve moved that step to the end of the extruder stage.

M84 will disable the motors so you can move them freely by hand, using pronterface to move them again is normal behaviour.

Check the heated bed’s thermistor at first the board, is it plugged in securely and to the correct position? Next check the cable, does it look OK? Finally, carefully peel back the tape holding the bead in place on the heated bed and check that none of the wiring is exposed and shorting. As a final resort you may need to replace the thermistor.

Try reinstalling the driver. Try a different PC also. If you’re still unable to connect then it’s likely the USB driver chip has been fried and the board would need replacing.

That’s normal, as you will need to home before the printer knows where it is.

Please send us an email at info@makertech3d.com and we’ll arrange one to be sent out.

The cable may be faulty by the sounds of it, especially if you think it’s interfeering with the extruder motors. Could you email us at info@makertech3d.com and we’ll do our best to help you with the extruder motors and provide a replacement servo cable.

Check that the hotend is above 180 degrees first before extruding, the printer prevents extruding below this temp. Also check that the extruder gear is turning and not just the shaft of the motor.

The printers axes are over shooting. Check your drivers and the jumpers underneath them. Remember for the red A4988 drivers you need all three jumpers installed. For the white TMC2208 drivers, there shouldn’t be any installed under them, just one on the corresponding UART pins, see steps 17-20:

Stage 08: Wiring

Make sure you've extracted the entire folder from the GitHub download .zip before opening in arduino.

Also make sure that the files are all still in the same folders, do not move anything.