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Printed curcuit boards

How to get rid of those pesky components

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Erfolg22/07/2011 15:38:11
11706 forum posts
1309 photos
I recently read a BEB call for where to obtain PCB board.
At the same time my printer failed. No tear was shed, as it did not work fully with Windows 7.
Not being as fussy as many, I am more than willing to recycle what is other wise waste. So I have removed the PCB boards from the printer.
There is a fly in the ointment though. The double sided board is stuffed with various components.
The question is, has any one a technique to quickly remove these items, other than desoldering?
Bob Cotsford22/07/2011 15:39:46
8382 forum posts
463 photos
If they are surface mount, a blast with a gas torch and a wipe with a damp cloth will probably do the trick.
birdy22/07/2011 18:27:34
1423 forum posts
110 photos
You could try putting it in the oven with a tray underneath it and hope the componts fall down into the tray. Then turn over and repeat. Don't really know if it will work, but I know that you can melt the solder by putting it in the oven. I'd also be careful of dripping solder so it would be worth putting foil over to tray.
This is probably a terrible idea.

Edited By birdy on 22/07/2011 18:28:56

Alan Cantwell22/07/2011 20:29:37
3039 forum posts
run windows vista through it, ite melting me down
PatMc22/07/2011 21:48:11
4379 forum posts
524 photos
I've only done it with single sided board but pretty well what Bob said then I scrape most of the components off with a 1" wide wood chisel. This usually leaves a few hanging on but they're easily removed using a soldering iron & a pair of pliers. The excess heat that's been applied in the process makes the copper lands easy to peel away.
Doug Ireland22/07/2011 21:52:21
2088 forum posts
42 photos
Eerm, why would you want to remove the components anyway Erfolg? Most modern PCB's are multi-layered so I can't see what you would wish to salvage in the first place.
John Privett22/07/2011 22:58:38
6039 forum posts
241 photos
Doug, I assume he wants the board to make control horns or similar.
Ian Jones22/07/2011 23:53:05
3220 forum posts
1397 photos
Haven't looked for ages but when I used to make PCBs I got the boards from various sources including Maplin and RS Componants.
PatMc23/07/2011 00:04:19
4379 forum posts
524 photos
Doug & Ian, as John says they can be recycled to make control horns etc.
I now dump the plastic kit items & replace with recycled epoxy board.
Ian Jones23/07/2011 00:25:27
3220 forum posts
1397 photos
Ah, sorry missed the point didn't I
Myron Beaumont23/07/2011 00:53:50
5797 forum posts
51 photos
I feel better about myself now . I'm not the only dimwit on here .(Only joking)
Back to making my wings -don't want to go to bed -really enjoying myself .
Kozmyk23/07/2011 01:19:34
151 forum posts
4 photos
A heat gun should do it if all you want to do is strip the board for cannibalisation. Hang it off some wire and jiggle it when the solder shines, SMD components should should all fall off.
Erfolg29/07/2011 14:19:10
11706 forum posts
1309 photos
I used a gas torch, although the heat gun suggestion would possibly have been more appropriate.
As suggested the surface mounted IC's just dropped of. The sockets came of with a little persuasion, as also suggested. Just banging the board on the ground lost some of the sockets and switches and diodes etc.
I did need to file the board as there were little solder mole hills left as the components left the board.
The biggest issue will be the removal of the copper tracks. I think I will just cut the horns out of the board and deal with each horn by horn.

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