Head Cable Continuity Testing

Overview:

The head cable is responsible for supplying 24VDC power from the Azteeg control board to the heater cartridges and fans. Its continuity must be tested in the event that you have a heater cartridge or fan malfunction, or if the printer is resetting. The steps below will help verify the continuity of the wire, ensuring there are no shorts or breaks in the head cable. 

Tools Needed: 

• Multimeter

Instructions: 

1. *IMPORTANT* Turn off the Gigabot and unplug it from the main power source.
2. Test for continuity of each wire in the wire bundle using a multimeter. Place one probe on a wire at one end of the bundle, then the other probe on the same colored wire at the opposite end of the bundle as shown below:
3. Verify you are making good contact between the wire and the probe. If the multimeter emits a long, continuous sound, the wire is continuous and it is functioning correctly. If the multimeter does not make any noise or the sound is fluttering, there is likely a break in the wire and the wire will need to be replaced. Repeat this process for every colored wire.
4. Next, instead of putting the probes on opposite ends of the cable, place them on different colored wires on the side that plugs into the Azteeg:
5. Test the probe between the different colored wires to make sure that the multimeter does NOT make a sound. If it does make a noise, there is a short circuit in the cable and it will need to be replaced.

Questions or concerns? Reach out to our support team at support@re:3D.org or open a support ticket.