Check 24V Power Supply Output

If the printer is experiencing power-related issues, you may need to verify that the power supply is correctly outputting 24 VDC. Follow the steps below carefully to measure the power supply output.

Safety Warning:

***Use extreme caution during this procedure!***

The electrical box contains live 120 VAC power while the printer is powered on. Only touch the components and terminals described in this procedure. Do not touch exposed wiring, terminals, or components that are not explicitly referenced.

If you are not comfortable working around live electrical systems, stop and contact support@re:3D.org before proceeding.

Tools Required

• Multimeter capable of measuring DC voltage

• Large flat-head screwdriver

• Proper lighting to clearly see inside the electrical box

Procedure

1. Power on the printer:

   • Plug the Gigabot into a wall outlet and switch the printer on.

2. Open the electrical box:

   • Using a large flat-head screwdriver, carefully open the electrical box access panel. Ensure the panel is fully open and secure before continuing.

3. Set your multimeter:

   • Set the multimeter to measure DC voltage (VDC). If your meter has multiple DC ranges, select a range that includes 24 V.

4. Measure the power supply output:

   • Locate the 24 VDC output terminals on the power supply. Place the multimeter probes across the output terminals as shown in the reference image:

   • Red probe on +V

   • Black probe on –V

5. Do not allow the probes to slip or touch adjacent terminals.

   
    

6. Record the voltage reading:

   • Note the voltage displayed on the multimeter. A properly functioning power supply should read approximately 24 VDC. Small variations (typically within ±1 V) are normal.

7. Close the electrical box:

   • Once the measurement is complete, carefully remove the probes. Close and latch the electrical box using the flat-head screwdriver before continuing any further troubleshooting.

Interpreting Your Results

• ~24 V DC present:

  • The power supply is operating normally.

If the measured output is not close to 24 VDC, do not continue operating the printer until the issue is identified and corrected:

• No voltage present:

  • Verify that the printer is powered on and that the power supply input wiring is securely connected. If power is present at the input but there is no DC output, the power supply may have failed and should be replaced.

• Low voltage (significantly below 24 VDC):

  • This may indicate a failing power supply, excessive electrical load, or a loose connection at the output terminals. Power the printer off and inspect the power supply wiring for loose or damaged connections before restarting.

• High voltage (significantly above 24 VDC):

  • An over-voltage condition can damage electronics and heaters. Power the printer off immediately and do not resume operation until the power supply has been evaluated or replaced.

• Fluctuating or unstable voltage:

  • Voltage that rises and falls during measurement may point to an internal power supply fault or an intermittent wiring issue. This condition can cause heating errors, unexpected shutdowns, or inconsistent printer behavior.

If the voltage is incorrect after confirming all wiring connections, contact support@re:3D.org before proceeding. Continuing to operate the printer with incorrect power supply output can result in component damage.

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