General > General Technical Chat
what's your recent fail?
artag:
Ordered some SMA right-angled sockets. Didn't notice until I'd soldered them in that they were the reverse sort with a pin where the hole should be. Evil things !
mindcrime:
Last night I was soldering headers on a new Arduino 33 IoT board. Got the first side done fine, then started on the other side. Got down to where I had about 4 more pins to solder when I realized that when I inserted the row of headers I misplaced it by one hole, so the D13 pad was empty, and one of my header pins was sticking through the mounting hole. :palm:
Luckily I was able to cut the "extra" pin off, and then successfully get it solder in place on D13. I tell ya what though... to me, soldering headers like that is one of the most challenging things I ever do, and that's doing a full row where the thing is supported once you tack a couple in place. But soldering a single header pin by itself like that? ^@#!@#&#$%@@#!!!!! Not fun. If you guys know the "trick" to doing that, please share.
exe:
--- Quote from: mindcrime on April 22, 2021, 06:20:25 pm ---If you guys know the "trick" to doing that, please share.
--- End quote ---
I insert headers into the breadboard, this way it's trivial to solder. This also guarantees that after soldering pin headers will fit the breadboard.
It might be difficult to remove the the device after soldering. For this I use IC puller/remover.
If the board is too big to fit the breadboard then I insert only one side, and make a support for the other side.
duckduck:
Posted my fail (with "after" picture) 5 days before you asked:
https://www.eevblog.com/forum/beginners/should-i-power-a-device-with-the-leads-hooked-up-backwards-on-the-power-supply/msg3549908/#msg3549908
Oh, the replacement signal generator didn't work. Damn cheap crap off of Amazon...
exe:
--- Quote from: duckduck on April 22, 2021, 07:35:52 pm ---Posted my fail (with "after" picture) 5 days before you asked:
--- End quote ---
Wow, that's quite some explosion!
--- Quote from: David Hess on April 22, 2021, 12:21:05 am ---while I decided whether to refurbish it
--- End quote ---
I guess the decision has been made :)
Meanwhile my probe slipped and I shorted poor's lt1468 pins to a power rail. Now it's really dead, huh :(. Ordering four more just in case...
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