Troubleshooting

Common Troubleshooting Steps

The wiki provides systematic guidance for addressing sand table issues:

1. Power Verification

"Use a multimeter to check the power supply" and confirm voltage levels match component specifications (ESP32, Arduino, motor drivers, etc.).

2. Wiring Inspection

Verify all connections follow the circuit diagram precisely, checking for loose or misplaced wires throughout the assembly.

3. Microcontroller Firmware

Confirm successful firmware installation on the microcontroller and consider re-uploading if the device malfunctions.

4. Dupont Wire Assessment

"Dupont wires are known to be unreliable" — replace suspicious connections and test wire security in ports by gentle tugging.

5. Motor Direction Correction

• CNC Shield (Arduino UNO): Reverse the motor cable at the shield
• ESP32: Swap IN1 with IN3 (or IN2 with IN4) in stepper motor wiring to reverse rotation direction

6. Gear Maintenance

Apply lubricant to stuck or rough-moving gears and remove any dirt or debris obstructing the mechanism.

The guide concludes that following these steps should resolve most issues, with a Discord server link provided for additional support at https://discord.gg/YZ8PTezVHt.