Newbie 2ne 3D print: bed does not heat up after new FW

Snapmaker 2.0
1

Hello all
I’m a retirted newbie with a little computer experience.
I bougt a Snapmaker 2.0 A350 a few years ago. Yesterday I could finally print my first piece, which went wonderful. Unfortunately I didn’t look for the installed FW.
Then I upgraded the FW to the newest version V1.18.1_20231103.
Today I wanted to print my second piece, but the heated bed will nit heat up. The display showed a temp of -14°C in a flat of room temp of 20°C ??? But the print started to run !
I even could not heat it manually. No reaction if I unplug the bed from the controller …
Specs:
Luban V4.10.1
Snapmaker 2.0 A350
Firmware V1.18.1_20231103
Touchscreen V1.18.5
Controller V4.6.3

How I can get the printer to print?

Thank you

2

Is the heated bed shown with a green dot on the touchscreen main screen?
Connector proper seated in the correct port?
May share the logs?

3

Hi xchrisd
there is a yellow dot
I disconnected the Cable from the controller and reconnected it. (The first print yesterday went very OK, then I did the FW-Update).
How do I get the logs? I can’t upload the logs.
During start it gets handwarm (I hope this is a right expression) then it cools down.

4

I hope you got the Logs. Fred

(Attachment FW_0.log is missing)

(Attachment SC_0.log is missing)

I tried to send them via email …

5

Next try

FW_0 – Notepad.pdf (42 KB)

SC_0 – Notepad.pdf (182 KB)

6

If your machine is new and you are under warranty you need to open a service request
Support Ticket Form or email support@snapmaker.com.

As I see your old firmware was V1.10.0_20210125.bin, you could download it from the forum if you want to test the old version to double check if it’s a firmware fault.

Maybe some reading takes you further:

Let us know your solution.

7

Thank you, I will try it.

Unfortunately, I bougt this SM 2 Jears ago, so it’s not new …

I’ve took it apart and looked for the soldering on the heated bed - they look OK.

8

UPS, I installed the “old” FW - the same result.
Then I unplugged the heated bed and measured the output voltage to the bed - 24V.
My conclusion: the heated bed died - or the temp sensor.

Do you know, if I can replace only the sensor? (I can solder) What type is it?

Thank you for your help.

9

I don’t know if replaceable or not, here is some more information and the potential thermistor type:

10

Thank you xchrisd, I’ll try to find and order one - let’s see if i works

11

This happened to me recently. I figured out that I customized the color and type of filament I was using. It was one I hadn’t used before. While customizing, I didn’t set it up right and I had to set the nozzle temps as well as the heated bed temperature.

12

Hi all
it lasted a little while until I got the needed parts. I needed a thermistor 100kOhms, a theperature resistent tape and insulation silicone. After replacing - it’'s running.
Thank you for all the help-

1 Like
13

Can you detail what you did?