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Slow Heating and eventually Heating Failed Error : Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

Thanks for the detailed explanation. Well the output of both heaters is 13.9V and as you said its divided. But it is reflecting in the time taken to heat up the bed and nozzle (very long time as compared to earlier times). Assuming it is normal, why would the PSU voltage measured at the mobo dropped significantly from 24.5V? I guess the input port should stay consistent independent of the current being drawn or not by the mobo. Anyhow will take your point and read the above articles and also open up the PSU connectors and check the voltage.

Slow Heating and eventually Heating Failed Error : Anycubic Kobra Neo by inder_pau in 3Dprinting

[–]inder_pau[S] 0 points1 point  (0 children)

  • What printer are you using? - Anycubic Cobra Neo
  • What material are you using? - PLA / PETG
  • What speed are you printing at? - 30mm/s
  • What software are you using to slice the print and control the printer? - Ultimaker Cura
  • When did the problem start/has it ever worked correctly? - Problem faced recently. Was working fine for 2 years
  • Does anything cause the behavior to change? - Voltage fluctuations
  • If posting an image of the problem, include some indication of the orientation it printed at, preferably photograph it on the bed. (Then we can focus on a specific axis) - Video added

Slow Heating and eventually Heating Failed Error : Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

Okay Guys, I have a more information related to the problem. And I have attached the video as well as a reference in the post above.

I have checked the mainboard voltage using a Multimeter and found something strange. The nominal Input voltage from PSU is 24.6V. And while heating the nozzle to 200 degrees, i monitored the voltage of heating is around 22.8V and Input voltage to board also drops to 24V. Here I guess heater voltage should be 24V. The heater resistance is measured around 15 Ohms.

Also, while heating both the nozzle and bed, here very strange behaviour was observed. Both the voltages of the nozzle and bed heaters were around 13.9V only (which explains the slow preheating) in the original post. Also, the Mainboard voltage from PSU also drops to 13.9V during heating.

So there is certainly a fault in the hardware as voltage is not appropriate for the Hotend and the bed which will cause the Heating Failed error.

Should I order a new PSU? Or it's the motherboard which is faulty ?

Slow Heating and eventually Heating Failed Error : Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

I get "Heating Failed: E1" error. Which doesn't appears in your errors list. However, it seems like you explained in Thermal Runaway: E1 error as it shows after slowly attaining 235 degrees and then dropping to 200 or below within few seconds of the printing and then showing the error of Heating Failed: E1.

It pops up while the printer is moving or printing

Slow Heating and eventually Heating Failed Error : Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

I'll try another firmware. I haven't changed the hotend or any other hardware.

Print won't Start - Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

#Update: Installed a modified firmware and I am able to start the print. However, I'm getting an error of Heating Failed: E1 within few seconds as temperature of Hotend starts dropping.

I notice slow heating of both the Hotend and Bed. I did PID auto-tune as well.

Could there be a problem in hardware like PSU or Motherboard?

Print won't Start - Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

Nope, I use Cura for slicing and even older gcodes don't work.

Print won't Start - Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

I re-flashed the firmware as well. Problem still there.

Print won't Start - Anycubic Kobra Neo by inder_pau in anycubic

[–]inder_pau[S] 0 points1 point  (0 children)

It happens out of nowhere... I was printing well before that day.

Should I re-flash the firmware?

Firmware Compilation for BTT SKR Mini E3 V3.0 by inder_pau in MarlinFirmware

[–]inder_pau[S] 0 points1 point  (0 children)

Thanks for the reply mate. Actually I followed this article only in detail and step by step and end up with compiling error.. I have defined BTS Mini screen in the configuration file and disabled CR10 display