Notifications
Clear all

Heatbed cable cover melted down  

  RSS
Polan
(@polan)
Active Member
Heatbed cable cover melted down

Hello, recently I've had an issue with heatbed cable cover melting down. Printer failed with thermal runaway so I've tried to disassembly the part and it seems that the cable was damaged by the meltdown and lost some isolation as it fused with the cover. I'm not electrician but it seems that plastic getting into cable is not a good thing.

I think just replacing that cable and covers will fix it, but as you can see on the photos, heatbed connectors look very messy due to all the burnt plastic. Has anyone had anything similar happen to them? Do you think I will also need to replace heatbed?

Printer self assembled model 3, later upgraded to s.

 

Melted down heatbed with cables

Melted down heatbed without cables Melted down heatbed cover

Best Answer by JoanTabb:

Your heatbed power connections were assembled incorrectly. 
the loop terminals should have been above the heatbed. 


you would be best  cleaning up the heatbed connections, replacing the wires and connectors  printing a new connector cover set, and replacing that too

regards Joan. 

Posted : 20/04/2020 11:22 am
JoanTabb
(@joantabb)
Moderator
RE: Heatbed cable cover melted down

Your heatbed power connections were assembled incorrectly. 
the loop terminals should have been above the heatbed. 


you would be best  cleaning up the heatbed connections, replacing the wires and connectors  printing a new connector cover set, and replacing that too

regards Joan. 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 20/04/2020 5:00 pm
Polan liked
Polan
(@polan)
Active Member
Topic starter answered:
RE: Heatbed cable cover melted down

Follow up for anyone who ends up with the same mistake as me:

Replacing cable was not enough, printer was still failing selfcheck when testing hotbed. After replacing hotbed it works again.

 

Posted : 13/05/2020 2:20 pm
JoanTabb
(@joantabb)
Moderator
RE: Heatbed cable cover melted down

That was very unfortunate! 
regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 14/05/2020 12:42 am
Share: