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Forum Index : Electronics : Desoldering Made Easy - Mr Solder Fix YouTube

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disco4now

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Joined: 18/12/2014
Location: Australia
Posts: 896

Posted: 10:53pm 12 Jun 2023

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I came across this video about removing components from PCBs. Looks like some good tips for getting out those larger components.

desoldering components

He mentions rework flux, is that just liquid flux or something special.

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pd--
Senior Member

Joined: 11/12/2020
Location: Australia
Posts: 122

Posted: 11:30pm 12 Jun 2023

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Thats neat

i use this stuff
https://www.ebay.com.au/itm/172590054356

if i was just striping components from boards then just a tub of Rosin would be fine
and a lot cheaper

Godoh
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Joined: 26/09/2020
Location: Australia
Posts: 458

Posted: 01:24am 13 Jun 2023

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Thanks for the post, that looks great. Getting multi pin components out is a difficult job at times that method makes it look easy.
Pete

Grogster

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Joined: 31/12/2012
Location: New Zealand
Posts: 9306

Posted: 05:43am 13 Jun 2023

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Thanks for this. Very clever!
I will have to start using this method - it is way better then my old method.

Smoke makes things work. When the smoke gets out, it stops!

Pete Locke
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Joined: 26/06/2013
Location: New Zealand
Posts: 181

Posted: 06:08am 13 Jun 2023

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Yes, this is a technique I've used over the years, and works very well. Far less destructive than walking a multi leg component off the board.
Cheers
Pete'.

Murphy's friend

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Joined: 04/10/2019
Location: Australia
Posts: 648

Posted: 09:59am 13 Jun 2023

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Thanks for posting that link, at last somebody who knows how to do a decent youtube.

I use a variation of his to unsolder big multipin parts.
I have an older style 60W barrel heater Weller soldering iron where the tip barrel is a 10mm diameter hole.
A 10mm piece of brass had a M6 thread turned on its end to replace the original tip. (why brass? its what I had and it does not appear to solder itself at the thread, easy to unscrew once the tip is cold)

Various size copper bars, 3mm thick and M6 tapped in the center can be screwed onto that brass tip.

I chose one that can heat all pins at once and proceed heating them as in the video.

Rather than waiting for the part to drop out I assist by pulling a little to shorten the heating time.

Cleaning the holes with a solder sucker works better if the sucker is applied at the component side and the iron tip at the solder side.

Now I have to get some of that liquid resoldering flux so I can try his solder wick idea too

andymc70

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Joined: 30/06/2019
Location: Australia
Posts: 43

Posted: 07:57am 18 Jun 2023

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Hello All
Great channel, defiantly will help with future projects.
Does anyone know how to make flux that flowing or what to add to flux to get in more fluid.
The stuff I have from jaycar is a pain to use either not enough or to much is clumps.
Andy

pd--
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Joined: 11/12/2020
Location: Australia
Posts: 122

Posted: 09:44am 18 Jun 2023

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Ad a bit of isopropyl

The flux i mentioned above
https://www.ebay.com.au/itm/172590054356
is very liquid when worm

i just place a couple of blobs in the area im working on then when i preheat the board it just flows like a liquid.

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