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Help! Blown out Bed Connector / Meltdown  

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Alvaro G
(@alvaro-g)
Active Member
Help! Blown out Bed Connector / Meltdown

Hi to everyone. I am in the middle of a very long printing job, and my two Original Prusa have been printing different parts barely 24 hours a day for about 8 days now. Well, one has been, the other one died with a bed thermal runaway. When i checked if it was a simple connector disconnection, i found something a little bit more serius.
The connector had melted, and the soldering was burned. I have an spare connector somewhere, but i really don´t like using the words Melted / Burned when talking about my 3D printer. I really need to put the machine up and running again ASAP, but I wanted to know if there´s something I should check in the Rambo Board before reconnecting the bed using the new connector.
I was printing PLA so the heatbed wasn´t under huge stress: 55Cº.
I even have a hole bed assembly ( bed + wiring ) as a spare part, but i really want to check the Board First.

I have already sent contact form to prusa on Monday but i haven´t got any response yet and i really need this machine working.

Posted : 01/08/2018 4:39 am
alexander.s27
(@alexander-s27)
Estimable Member
Re: Help! Blown out Bed Connector / Meltdown

Crap that conector. Cut the cables and just solder them to the back of the pcb. Works for nearly a year now at my printer.

Posted : 01/08/2018 6:04 am
Alvaro G
(@alvaro-g)
Active Member
Topic starter answered:
Re: Help! Blown out Bed Connector / Meltdown

Thanks, i will try, it definitely seems better idea than keeping the faulty connector

Posted : 01/08/2018 3:51 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: Help! Blown out Bed Connector / Meltdown

When I soldered mine, I just added tails plus these connectors: https://www.banggood.com/Excellway-ET25-235-Pins-Spring-Terminal-Block-Electric-Cable-Wire-Connectors-5Pcs-p-1129219.html?rmmds=search&cur_warehouse=CN just in case I needed to swap the wires over again or dismantle the printer.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Posted : 01/08/2018 5:15 pm
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