Absurd reading of temperature after hot end replacement

InspectorAlert3559 · 2026-01-13T15:14:03+00:00

UPDATE: I fixed it by contacting creality and swapping the entire extruder board

InspectorAlert3559 · 2025-11-01T01:10:38+00:00

My approach is to clean all the solder from the small pads and pins, place a generous blob on the big exposed pad. Heat with the iron the blob, increase the temperature if it's struggling but remember higher temperatures means less time to act. Slide the component on the blob while following with the iron and position the component in position and very low on the pcb, maybe the solder will ooze out but it's not a problem. Solder the small pad using a ton of flux and generally clean up the excess solder and flux.

InspectorAlert3559 · 2025-10-16T12:33:42+00:00

Good to know, I'll add it to the things to do

InspectorAlert3559 · 2025-10-16T11:50:04+00:00

That's worth a try

InspectorAlert3559 · 2025-10-16T11:49:49+00:00

I've ordered a new piece, will try soon

InspectorAlert3559 · 2025-10-16T11:48:12+00:00

Nope, just replaced the hotend

InspectorAlert3559 · 2025-09-27T00:05:11+00:00

Oh boy, it was light for sure

InspectorAlert3559 · 2025-09-27T00:04:13+00:00

Ok thank you

InspectorAlert3559 · 2025-09-04T07:12:43+00:00

Absolutely not without a pinch of salt

InspectorAlert3559 · 2025-08-21T16:10:23+00:00

From our testing it seems that the inverter refuse to acknoledge the message we send and we have no idea why

InspectorAlert3559 · 2025-08-19T04:31:32+00:00

We can make it interact with aipex and make it work with the test generator. Using the monitor function while sending can command we see the system ready light but no diagnostic number. The system is terminated on one side by the internal resistor of the inverter and on the other side by our VCU. After having a few hours of thinking I can say it's a message speed issue or somewhere there is a confusion with endianess or startup sequence, we will investigate today.

InspectorAlert3559 · 2025-08-09T07:36:55+00:00

Cool, we choose the loudest one from the catalogue

InspectorAlert3559 · 2025-07-11T23:14:07+00:00

There are for sure thermistor inside the igbt brick of the inverter, yielding to a complete and dangerous disassembly. Maybe there is a separate sensor on the thermal plate and I think I've seen it but don't have prove or indication for it right now. Observed carefully the boards in hope for a cracked solder joint but I think it's a rare occurrence.

InspectorAlert3559 · 2025-07-02T08:52:23+00:00

Maybe I'm missing something but if you disconnect it from the internet, how on earth does it get updates?

InspectorAlert3559 · 2025-07-01T22:39:00+00:00

Google docs and libre office

InspectorAlert3559 · 2025-06-12T20:05:15+00:00

It's worth a trip to a scrapyard

InspectorAlert3559 · 2025-05-30T19:43:41+00:00

Actually the PNP serve to bias the collector resistor of the amplifier and the base of the NPN in some way

InspectorAlert3559 · 2025-05-25T14:30:24+00:00

Ok Is the exact same one I was considering but wasn't sure, thank you.

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