E3D Revo - thermal anomaly / Rambo issue?
Background: I have 3 similar MK3S+. 2 are fully stock. One has the E3D Revo 40W hot end. I like the Revo - nozzle issues are quick and easy to fix.
The Revo printer gives tons of thermal anomaly errors. Yes, I could revert the firmware as a last resort - that's not why I'm posting.
Issue: When printing, the printer throws a Thermal Anomaly error. I'll call this TA.
Steps to reproduce: heat the nozzle to PLA temps (210 °C). Wait a few seconds. Observe error.
Workaround: continue retrying heating until the nozzle exceeds ~125 °C. After that, the TA isn't thrown.
Troubleshooting steps: Captured in this video.
- Reset the printer (full factory reset)
- Update the firmware (to the proper Revo firmware)
- Verify the 40W heater and the thermistor)
- Verify thermistor wiring, connections
- Verify heater wiring, connections
- Verify Revo HeaterCore heater resistance
- Verify Revo HeaterCore thermistor resistance
- Replace Revo HeaterCore (factory reset)
- View Support | Temperatures:
- confirm the ambient temp is 23 °C.
- confirm I can heat the hotend with a hot air gun and see the temp continuously increase beyond 130 °C
I'm not surprised that changing the HeaterCore does not fix the TA problem because the original HeaterCore electrical performance appears to be correct.
I reviewed the Einsy Rambo schematic. The thermistor input is simply 2 zeners and 2 2K37 resistors. They don't seem to be the problem.
Any thoughts?
RE: E3D Revo - thermal anomaly / Rambo issue?
Background: I have 3 similar MK3S+. 2 are fully stock. One has the E3D Revo 40W hot end. I like the Revo - nozzle issues are quick and easy to fix.
The Revo printer gives tons of thermal anomaly errors. Yes, I could revert the firmware as a last resort - that's not why I'm posting.
Issue: When printing, the printer throws a Thermal Anomaly error. I'll call this TA.
Steps to reproduce: heat the nozzle to PLA temps (210 °C). Wait a few seconds. Observe error.
Workaround: continue retrying heating until the nozzle exceeds ~125 °C. After that, the TA isn't thrown.
Troubleshooting steps: Captured in this video.
- Reset the printer (full factory reset)
- Update the firmware (to the proper Revo firmware)
- Verify the 40W heater and the thermistor)
- Verify thermistor wiring, connections
- Verify heater wiring, connections
- Verify Revo HeaterCore heater resistance
- Verify Revo HeaterCore thermistor resistance
- Replace Revo HeaterCore (factory reset)
- View Support | Temperatures:
- confirm the ambient temp is 23 °C.
- confirm I can heat the hotend with a hot air gun and see the temp continuously increase beyond 130 °C
I'm not surprised that changing the HeaterCore does not fix the TA problem because the original HeaterCore electrical performance appears to be correct.
I reviewed the Einsy Rambo schematic. The thermistor input is simply 2 zeners and 2 2K37 resistors. They don't seem to be the problem.
Any thoughts?
I don't really understand your problem