[Lab] Questions: 1) DIY PCB etching and 2) O-scope in lab?

[eric.schmidt at rogers.com]

Thanks Darcy;

Yes, messy and fraught with the possibility of screwups, but I wanted us to do the "full DIY" process at least once.

Who would you suggest for the mail-order route, though? I'm curious about the cost of that option.

cheers,
Eric



________________________________
 From: Darcy Whyte <darcy at siteware.com>
To: eric.schmidt at rogers.com 
Sent: Wednesday, January 11, 2012 12:08:17 PM
Subject: Re: [Lab] Questions: 1) DIY PCB etching and 2) O-scope in lab?
 

I noticed an scope in the lab
Are you bringing the project to the next modlab?
etching sounds messy
Perhaps mail order can solve that one?
Or perhaps a DNC machine? Not the best method but it might be easier 
On Jan 11, 2012 12:01 PM,  <eric.schmidt at rogers.com> wrote:

So, I've bitten the bullet after lots of lurking on the list, and have initiated our first "dad and kids" electronics project (ok, it'll be vastly "dad with kids looking on")
>
>We're going to make this metal detector: http://makeprojects.com/Project/Treasure-Finder/1113/1
>
>
>I'm just wondering how many of you have done PCB etching using the toner-transfer method.
>After going through a bunch of youtube videos on the etching process, some of them mention the stinkyness/toxicity of the fumes from the acid bath. I bought FeCl3 etchant from Active, but now I'm thinking that maybe HCL+H202 would be better, as described here:
>http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/
>
>
>
>Regardless of etchant, though, in mid-winter, doing it in the garage is probably out of the question due to the cold (or is it?) but I assume I have to ventilate the heck out of whatever space we use.
>
>
>any guidance on the etching process?
>
>
>Next question: for this project, you need to tune the reference coil using either an oscilloscope or a frequency-counting multimeter. Does the Lab have either of these? Cuz I don't...
>
>
>thanks in advance for any wisdom.
>
>
>
>cheers,
>Eric
>
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