madbeanpedals::forum

General => Open Discussion => Topic started by: Gledison on November 23, 2013, 03:30:42 PM

Title: Etched board little problems!
Post by: Gledison on November 23, 2013, 03:30:42 PM

Sorry this post is related with my last one but there wasnt much views and i really need assistence on this:)
After etched, the little 'crispy' points let by the tone transfer resulted in spots on the pcb! You can see better on the picture! Is this a big problem?
Thanks for any help!
(http://img.tapatalk.com/d/13/11/23/qeda8e4e.jpg)
Title: Re: Etched board little problems!
Post by: jimilee on November 23, 2013, 03:39:59 PM
Quote from: Gledison on November 23, 2013, 03:30:42 PM
Sorry this post is related with my last one but there wasnt much views and i really need assistence on this:)
After etched, the little 'crispy' points let by the tone transfer resulted in spots on the pcb! You can see better on the picture! Is this a big problem?
Thanks for any help!
Was it just on the ground plane?
Title: Re: Etched board little problems!
Post by: Gledison on November 23, 2013, 03:59:54 PM
Quote from: jimilee on November 23, 2013, 03:39:59 PM
Quote from: Gledison on November 23, 2013, 03:30:42 PM
Sorry this post is related with my last one but there wasnt much views and i really need assistence on this:)
After etched, the little 'crispy' points let by the tone transfer resulted in spots on the pcb! You can see better on the picture! Is this a big problem?
Thanks for any help!
Was it just on the ground plane?
Sorry Jimmi, what do u mean?
Title: Re: Etched board little problems!
Post by: croquet hoop on November 23, 2013, 04:07:24 PM
Quote from: Gledison on November 23, 2013, 03:30:42 PMIs this a big problem?

Use your multimeter to check for shorts or breaks in conductance. If there are some, yes, there is a problem. If there are none, you are fine.
Title: Re: Etched board little problems!
Post by: Gledison on November 23, 2013, 04:11:21 PM
Quote from: croquet hoop on November 23, 2013, 04:07:24 PM
Quote from: Gledison on November 23, 2013, 03:30:42 PMIs this a big problem?

Use your multimeter to check for shorts or breaks in conductance. If there are some, yes, there is a problem. If there are none, you are fine.
Well, i already did that! The cinductivity between 2 pads and the ground is ok! Only if i scratch the areas with the small dots i can hear that there is no conductivity! Thats my question, would this uneven track(with conductivity) bring some trouble?
Thanks for helping
Title: Re: Etched board little problems!
Post by: Ettore_M on November 23, 2013, 04:46:48 PM
I can't see clearly what kind of spots are they, but if it's what I think, they will not cause a problem! I would just rub the board with thin wire or sandpaper. If, then, you have a clear copper surface, you are just fine! ;)

Hector
Title: Re: Etched board little problems!
Post by: Gledison on November 23, 2013, 05:16:37 PM
Quote from: Ettore_M on November 23, 2013, 04:46:48 PM
I can't see clearly what kind of spots are they, but if it's what I think, they will not cause a problem! I would just rub the board with thin wire or sandpaper. If, then, you have a clear copper surface, you are just fine! ;)

Hector
Hey Hector! It got much better after rubbing with steel wires! Im pretty sure that are very little spots that weren't protected by the tone, and during the etching is not totally etched but indeed oxidised!
Thanks for the tip!
Title: Re: Etched board little problems!
Post by: wolfingsworth on November 24, 2013, 07:03:14 AM
Anytime I have a poorly etched (or broken) trace, if it works, I'll try and leave the end of the component lead long and just connect it to where it needs to go (like perfboard). Although it seems like a failure sometimes if the etch doesn't come out perfect, the layout is there and  if it works in the end, who cares right? Happy soldering!
Title: Re: Etched board little problems!
Post by: Ettore_M on November 24, 2013, 09:50:08 AM
Quote from: Gledison on November 23, 2013, 05:16:37 PM
Hey Hector! It got much better after rubbing with steel wires! Im pretty sure that are very little spots that weren't protected by the tone, and during the etching is not totally etched but indeed oxidised!
Thanks for the tip!
You're welcome! :) This has happened to me a couple of times, and I tried the steel wire and it did its job very well. ;)

Hector