Author Topic: Show some EE Failures  (Read 20607 times)

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Offline chromeTopic starter

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Show some EE Failures
« on: February 22, 2012, 08:30:03 pm »

Click for larger


Note: This is not something I did, I found this on another forum a while back and found it in my pictures folder recently.
« Last Edit: February 23, 2012, 05:14:04 pm by chrome »
 

Offline robrenz

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Re: EE Failures
« Reply #1 on: February 22, 2012, 08:37:12 pm »
Looks good to me, Ship it! ;)

Offline wkb

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Re: EE Failures
« Reply #2 on: February 22, 2012, 08:53:04 pm »
I've seen 6 year olds do a lot better after 10 minutes of hands-on instruction..  ???
 

Offline G7PSK

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Re: EE Failures
« Reply #3 on: February 22, 2012, 08:55:07 pm »
That looks like chicken shit.
 

Offline M. András

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Re: EE Failures
« Reply #4 on: February 22, 2012, 08:57:24 pm »
dear god, how could that guy screw it up that badly? how hard was he trying?
 

Offline sacherjj

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Re: EE Failures
« Reply #5 on: February 22, 2012, 09:03:31 pm »
You should be able to fix that with a little spray on antenna.  :D


It looks like some of those bits of solder are pole dancing on the leads. 
 

Offline david77

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Re: EE Failures
« Reply #6 on: February 22, 2012, 09:15:13 pm »
Looks like someone spat a mouthfull of hot solder over that PCB  ;D.
Mind you, I wouldn't worry too much about the PCB if I had hot lead in my mouth.
 

Offline TerminalJack505

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Re: EE Failures
« Reply #7 on: February 22, 2012, 09:16:11 pm »
I've seen 6 year olds do a lot better after 10 minutes of hands-on instruction..  ???

Actually, I was wondering if this was the result of child labor.
 

Offline MarkS

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Re: EE Failures
« Reply #8 on: February 22, 2012, 09:28:40 pm »
 :o
 

Offline electrode

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Re: EE Failures
« Reply #9 on: February 22, 2012, 09:49:22 pm »
Somebody needs to learn that solder isn't hot glue.
 

alm

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Re: EE Failures
« Reply #10 on: February 22, 2012, 09:58:00 pm »
Exactly. You need to melt some solder on the tip of your iron, until a large drop forms on the tip. Then you wait until all the smoke clears, since that's contamination in the solder that would cause bad joints. Then you transfer this blob of solder from the tip to your component leg, do this as fast as possible, don't let the component get hot, that might damage it. If it does not work, add more solder, or just skip the joint. Half of those components were put there to inflate the budget, anyway, so soldering half of the joints should work just fine.
 

Offline 8086

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Re: EE Failures
« Reply #11 on: February 22, 2012, 10:17:11 pm »
I'm not sure I could solder that badly even if I was trying to. Blimey.
 

Offline nanofrog

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Re: EE Failures
« Reply #12 on: February 22, 2012, 10:19:16 pm »
I've seen 6 year olds do a lot better after 10 minutes of hands-on instruction..  ???

Actually, I was wondering if this was the result of child labor.
This is what I was wondering as well.
 

Offline wkb

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Re: EE Failures
« Reply #13 on: February 22, 2012, 10:19:54 pm »
I've seen 6 year olds do a lot better after 10 minutes of hands-on instruction..  ???

Actually, I was wondering if this was the result of child labor.

I intro-ed kids into electronics as a hobby and they were better than this.  By a lightyear or 2.
 

Offline nanofrog

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Re: EE Failures
« Reply #14 on: February 22, 2012, 10:25:09 pm »
I've seen 6 year olds do a lot better after 10 minutes of hands-on instruction..  ???

Actually, I was wondering if this was the result of child labor.

I intro-ed kids into electronics as a hobby and they were better than this.  By a lightyear or 2.
I presume you gave them some proper instruction first, not just handed them a PCB, some parts, a picure of where the parts go, an iron, and then said "Have at it".  ;)
 

Offline olsenn

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Re: EE Failures
« Reply #15 on: February 22, 2012, 11:38:55 pm »
He/she/it obviously had a $10 Radioshack soldering iron, an IQ less than 15, and was wearing a blindfold.
 

Offline Bored@Work

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Re: EE Failures
« Reply #16 on: February 22, 2012, 11:41:40 pm »
At least it has a CE mark. That'll do.
I delete PMs unread. If you have something to say, say it in public.
For all else: Profile->[Modify Profile]Buddies/Ignore List->Edit Ignore List
 

Online IanB

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Re: EE Failures
« Reply #17 on: February 22, 2012, 11:47:10 pm »
You can still do OK even with not so good tools. Just look at the iron this poor young lady has to use:



I bet she'd love a Hakko instead of the cheap iron she has there.
 

Offline Kibi

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Re: EE Failures
« Reply #18 on: February 23, 2012, 12:10:43 am »
At first look, it seemed to me that someone had tried to solder that board using a wheelbarrow. Who on this earth thought that was good enough for anything.
 

Offline damo

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Re: EE Failures
« Reply #19 on: February 23, 2012, 02:22:40 am »
You need to melt some solder on the tip of your iron, until a large drop forms on the tip. Then you wait until all the smoke clears, since that's contamination in the solder that would cause bad joints. Then you transfer this blob of solder from the tip to your component leg, do this as fast as possible, don't let the component get hot, that might damage it. If it does not work, add more solder, or just skip the joint. Half of those components were put there to inflate the budget, anyway, so soldering half of the joints should work just fine.
I hope you're being sarcastic here ;D

With regards to the soldering on the board, I've seen worse and I've seen a million times better.

My personal soldering iron is an old cheap Dickie Smith one which works fine. I've used all sorts of irons in my time, from the expensive Hakkos to really cheap $10 ones and I find that you don't really need to use an expensive iron if you know the correct technique of soldering (though the tip and wattage is important).
 

Offline MarkS

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Re: EE Failures
« Reply #20 on: February 23, 2012, 02:50:24 am »
Exactly. You need to melt some solder on the tip of your iron, until a large drop forms on the tip. Then you wait until all the smoke clears, since that's contamination in the solder that would cause bad joints. Then you transfer this blob of solder from the tip to your component leg, do this as fast as possible, don't let the component get hot, that might damage it. If it does not work, add more solder, or just skip the joint. Half of those components were put there to inflate the budget, anyway, so soldering half of the joints should work just fine.

 :o ;D
 

Offline vk6zgo

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Re: EE Failures
« Reply #21 on: February 23, 2012, 06:00:23 am »
The types of errors don't look like bad hand soldering to me.They look like flow soldering with something drastically wrong with the system.
I have run into some of these faults on otherwise perfect flow soldered PCBs.
 

Offline Psi

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Re: EE Failures
« Reply #22 on: February 23, 2012, 06:02:57 am »
yeah, it almost looks like the solder/paste contained zero flux
Greek letter 'Psi' (not Pounds per Square Inch)
 

Offline Jad.z

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Re: EE Failures
« Reply #23 on: February 23, 2012, 10:18:25 am »
chrome, are you messing with us  :-\
 

Offline dcel

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Re: EE Failures
« Reply #24 on: February 23, 2012, 12:46:21 pm »
A first attempt with lead-free solder and no flux and no nitrogen atmosphere and low watt iron.....

Yuk :P

Chris
 


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