madbeanpedals::forum

General => Open Discussion => Topic started by: pickdropper on November 12, 2014, 06:41:32 PM

Title: Cool PCB rework
Post by: pickdropper on November 12, 2014, 06:41:32 PM
I've seen some cool PCB reworks, but this is a bit beyond what I am used to:

https://home.comcast.net/~rburn/PCB-rework/

The dremel work is pretty impressive.  I'd be curious to see how well this holds up over time.
Title: Re: Cool PCB rework
Post by: cooder on November 12, 2014, 06:47:16 PM
 :o far out! What a save! That burned pcb looked totally shot!
Title: Re: Cool PCB rework
Post by: Shrtyska9 on November 12, 2014, 06:51:26 PM
Thats pretty amazing stuff! I'm not sure I would have gone through all of that trouble of patching it when he had the art to etch the entire board. Certainly makes for a great story and some real street cred.
Title: Re: Cool PCB rework
Post by: davent on November 12, 2014, 08:07:51 PM
A small transfer punch followed by a chasing hammer and you can set those eyelets perfectly.

Mind boggling, incredible challenge, really couldn't imagine better,  i break a major sweat if a pad lifts... have to keep this is mind!

Thanks Dave!
dave
Title: Re: Cool PCB rework
Post by: pickdropper on November 12, 2014, 08:15:12 PM
I thought the solder wick as a bridge was clever as well.
Title: Re: Cool PCB rework
Post by: wgc on November 12, 2014, 08:30:55 PM
pretty cool, should work fine.  lots of patience on this one

I forget how many damaged traces and pads were allowed for mil spec repairs, it might have been 2-3 in a square inch or something like that.  Commercial stuff was more forgiving.

I think we used to scrape out any charred material and then fill with epoxy, then there was copper foil that would be cut an pasted in, much the same as here, only with wire bridges.

My favorite ones to do were multi layer pcbs with bad via connections.  Didn't happen often but super challenging.

Title: Re: Cool PCB rework
Post by: selfdestroyer on November 12, 2014, 11:02:07 PM
That was crazy awesome.

Cody
Title: Re: Cool PCB rework
Post by: gordo on November 12, 2014, 11:16:09 PM
You, sir, are entirely out of your mind. What an awesome recovery. Class act all the way through.
Title: Re: Cool PCB rework
Post by: pickdropper on November 12, 2014, 11:17:07 PM
Quote from: gordo on November 12, 2014, 11:16:09 PM
You, sir, are entirely out of your mind. What an awesome recovery. Class act all the way through.

Just to be clear, that isn't me.  That is somebody who clearly has much more free time than I do.   ;D
Title: Re: Cool PCB rework
Post by: chuckbuick on November 12, 2014, 11:27:41 PM
I like a good PCB challenge, too.  But I would've tapped out somewhere between the 2nd and 3rd pics.  Awesome work, though.