Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] How to calculate effective mil values from printer dpi

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-06-23

On Fri, 23 Jun 2006 02:56:28 +0200, Kamal Shankar
<kbshankar2000@...> wrote:

>
> Then I gently ruboff the paper in running water, and
> right now all thin traces (and some parts of ground
> plane) are saying bye bye ....
> What method do you use ? Will soaking it overnight
> work ?

I don't soak it long, no. I have never tried so i dunno if a paper will
come off overnight.
Your method sounds fine to me, i believe the toner does not adhere well
enough.

What board preparation/cleaning do you use? What method to iron/fuse?

> The funny thing is, the toner which sticks to the clad
> takes hell lot of effort to scrub off (I have since
> resorted to using acetone - Thanks mycroft!)

You can use a hard edge, like a steel scraper, and scrape it off. If you
don't scratch with the corner it will not damage the traces.
I then use acetone to clean the board and remove any tiny pieces left, but
the scraping makes quick work of the bulk of it.

ST