Soldering broken PCB pin

[ZKARAGOZ 0]

Hello guys. During a print head clog, one of the pins of my ultimaker 3 print head PCB broke off. Now the printer will not read anything in that slot.

 

Could I solder this back on? Ive got no soldering experience.  Thanks!

[Jasonjason 6]

Take it apart- then find someone who has experience to solder it.  That’s not the job to learn on.

Someone close to you will probably do it and post it back if you ask nicely.

[CrazyIvan2 1]

That looks like a hard job, even for a skilled worker.

 

First, what's the access like, it looks like it's down a hole.  Can the area be disassembled for free access?

 

The next thing is that electrical solder is very soft and we don't rely on it for mechanical strength – that's a sprung contact so when mated the solder joint will be under stress.  I'm sure the original part retained the contacts in the plastic moulding, and it has now broken out.  That wouldn't stop me trying to make a repair (nothing to lose by trying), but I would also be trying to source a replacement connector.

 

Don't be tempted to glue the contact in before soldering, the heat of soldering can break down the glue and release toxic fumes in the process (eg superglue releases cyanide when heated).

Edited September 12 by CrazyIvan2
Important safety information

[SimonG_SEC 1]

On 9/10/2023 at 3:20 PM, ZKARAGOZ said:

Could I solder this back on? Ive got no soldering experience.  Thanks!

I suspect the repaired soldered part will be weaker than the original and more liable to break again  . . . 

[gr5 2,071]

No way can you solder that and expect it not to break again on the first try.

 

You can buy that PCB pretty cheap.  Contact 3dshop.ca  Probably < 100 CAD

[gr5 2,071]

Also there are nice videos showing you how to take the head apart: https://www.ultimakernasupport.com/hc/en-us/articles/360039150672-Printhead