EC51 -Extruder Stepper 1 NOK

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Thelaunster
Posts: 7
Joined: 24 Apr 2019, 00:11

EC51 -Extruder Stepper 1 NOK

Post by Thelaunster » 27 May 2019, 06:44

Extruder 1 on my B2X300 printer started a loud clicking sound mid-print. So I aborted the print in Cura then ran the Self-Test Wizard. Extruder 1 NOK.
I triple checked the wiring, everything is correct. (It was printing well earlier) Unplugged and re-plugged the connections in question, restarted the unit and Self-Test multiple times to no success. I am running the latest firmware update.

Any tips to further troubleshoot this? Could I have received a faulty motor?

Thelaunster
Posts: 7
Joined: 24 Apr 2019, 00:11

Re: EC51 -Extruder Stepper 1 NOK

Post by Thelaunster » 27 May 2019, 07:07

After reading up on the other EC51 code experienced by TracyJonSargeant, I checked and rechecked the connections under the motherboard blower, the flat cables, and swapped the E0 and E1 Stepper motors plugs for testing. EC51 occurs regardless of which stepper motor is plugged in E1 during self test wizard.

DomingosRodrigues
Posts: 93
Joined: 12 Dec 2017, 11:44

Re: EC51 -Extruder Stepper 1 NOK

Post by DomingosRodrigues » 27 May 2019, 10:06

Hello Thelaunster ,

The EC51 error just means a stepper driver is off, next to the error there should be a message saying which stepper driver is NOK, if the error is always on the same stepper driver even after replacing the E1 stepper for the E2 stepper then it appears the communication board/cables are to blame for the problem. Posting a images of what appears on screen during the error when using the stepper in the normal order and after replacing one will help on the diagnosis

Most likely the problem is caused by a faulty stepper driver chip that we will replaced if defective, please contact customer_service@beeverycreative.com

Best regards :)

Thelaunster
Posts: 7
Joined: 24 Apr 2019, 00:11

Re: EC51 -Extruder Stepper 1 NOK

Post by Thelaunster » 27 May 2019, 15:27

I found the culprit, looks like this chip blew a contact. (Black dot of burned solder)
I'll contact customer service. Thank you for the help!
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Thelaunster
Posts: 7
Joined: 24 Apr 2019, 00:11

Re: EC51 -Extruder Stepper 1 NOK

Post by Thelaunster » 27 May 2019, 15:45

Side Note: If your printer freezes on this screen when testing the trinamic drivers in the self test wizard, check these chips after checking your connections.
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DomingosRodrigues
Posts: 93
Joined: 12 Dec 2017, 11:44

Re: EC51 -Extruder Stepper 1 NOK

Post by DomingosRodrigues » 28 May 2019, 11:59

Hi there Thelaunster,

That screen should not get stuck like that it should say the error and which stepper driver is NOK.

What version of firmware are you using? Please show me a picture of what is on your about screen to know the exact version/commit. And which stepper driver failed?

With that info I will try to replicate the problem and solve the firmware bug that causes the screen to freeze so no one needs to see such a blank screen again :)

Best regards

Thelaunster
Posts: 7
Joined: 24 Apr 2019, 00:11

Re: EC51 -Extruder Stepper 1 NOK

Post by Thelaunster » 29 May 2019, 01:42

I was running this iteration. I have since updated the firmware and it is behaving properly.
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