Printer heating up and resulting in error

General Discussion
1

Basic Information:

Basic Information:

Printer Model: CR-10S
MCU / Printerboard: Default one
klippy.log

Describe your issue:

So i recently wanted to revive an old 3d printer. I installed klipper on the 3d printer a year ago, and decided to start reviving it this month. Everything went smoothly until when heating up the extruder. Its incredibly slow, and always ends up in an error.

So far i have tried
Replacing thermistor+cartiage
Checking if fan is blowing on the hotend
Put preinstalled pid tuning setting (from another printer)

Im quite a newbie to klipper, so any help is much apprectiated.

klippy.log.zip (707.1 KB)

2

Apart from the fact that you Klipper is pretty old (updating may be nice but will not solve your issue), such errors are always either:

  • Wiring
  • Thermistor
  • Heating Cartridge
  • Power Supply
3

The wiring, thermisotr and heating cartiage should all be fine and working. Im not however sure about he power supply. How can i know if thats good or not?

4

Measure the output voltage under load with a DMM, e.g. bed and extruder heating. It needs to stay rock solid at around 24V (given it is a 24V PSU of course).

Be careful there is mains voltage nearby → Working with Line Voltage (110 V / 230 V / >50 V)

5

That may be the problem, its a 12v power supply. However the printer did work before with another 12v powersupply.

6

12V should be fine as long as 12V stay 12V under load.

7

the powersupply is 220/110 instead of 230/115. Could that be the problem?

8

So i have another power supply (the orignial one). Now aroudn a year ago one of the wires started smoking and since then i havent used that power supply. Is there a way to check if it works without a dmm, im scared of electrocutign myself.

9

wait disconnect from mains? how will it have electrity if its not connected?

10

This article is of course general in nature. DO NOT connect a PSU that already showed signs of defect!
I recommend getting professional help.

1 Like
11

I tested the voltage and its showing a stable 12v under load. As i said i doubt that its the heater caritage and theirmoistor, becasue the same is working on another printer. What else could it be? I also tried with a nozzle cover. Here is a picture.

Skärmbild 2024-02-10 114315
Skärmbild 2024-02-10 114315452×513 18.9 KB

12

Unfortunately, I cannot provide any further guidance here. As you can see in your log:

grafik

At a certain point, the temperature suddenly starts dropping instead of further increasing. pwm=1.000 shows that Klipper is in fact commanding the heater to continue heating at full power.
Finally, the Heater extruder not heating at expected rate is correctly thrown.

In all instances I’m aware of, this is due to some hardware defects in the respective heating system or due to an insufficient / defect power supply unit.

13

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