Duet Mini 5+ Temp1 failure?
-
I have a relatively new Mini 5+. It successfully completed a print a couple days ago but yesterday, I switched it on and started a print when, after a couple minutes, I noticed that the hotend was reading 320. I thought it was a thermal runaway so i shut it off and figured I'd look in to it today. When I say shut it off, I turned off power at the power strip.
Today I turned it on and the temp for the hotend was reading 264. I thought that was odd so I put my finger near the hotend and felt no heat. It was stole cold. Figured the thermistor (e3D Revo) had gone bad so I plugged another known good one in and it read the same thing. Turned off the machine and unplugged the thermistor completely and, when I turned the machine back on, the temp read 64. It should have said 2000. I then turned it off and plugged the hotend thermistor in to Temp2 and reassigned it in the config file. Now, it shows the proper temp. Board port failure? I'm afraid to start a print in case the thermistor caused the failure. Thoughts? -
When and where did you purchase the Mini 5?
-
@Phaedrux said in Duet Mini 5+ Temp1 failure?:
When and where did you purchase the Mini 5?
November 29 2024 from Filastruder.
-
Usually this failure would indicate damage to the voltage reference resistor. Possibly from static discharge between the hotend and thermistor. We'll replace your board under warranty, but please ensure your hotend metal work is grounded to prevent similar damage from happening again with the replacement.
Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.
-
@Phaedrux Will do. How do I ground an E3D Revo? On the Hemera XS on my other printer, I grounded it to a mounting screw on the extruder body. There are no screws on the Revo. Grind off part of the anodizing and sandwich a ground wire in the mount?
-
I don't have a Revo myself, so i'm not sure what the best method would be.
-
@SpeedyDad what is the coldside you are using?
-
@T3P3Tony said in Duet Mini 5+ Temp1 failure?:
@SpeedyDad what is the coldside you are using?
It is basically a Revo Six
-
@SpeedyDad can you ground that?
-
@T3P3Tony said in Duet Mini 5+ Temp1 failure?:
@SpeedyDad can you ground that?
I'd basically have to grind the powder coating off the cold side and run a ground wire to it.
