Thanks for the replies. I have several sharpies in my desk drawer. Unfortunately, since my last post, I noticed another issue. I don't have a laser printer here at home, so I printed the layout to a file and loaded it to my jump drive for a remote print. I discovered that the resulting printout from the file shrunk the layout a bit. The mounting holes no longer line up, and everything is squeezed together accordingly. It wasn't immediately apparent due to the small difference, but when compared side by side with a printout from my home printer through the PCB software, it seems to have shrunk maybe 5% or so. Looks like I will have to try the transfer again, printing it out on my printer on some good paper, then borrow a copy machine to make the transfer.
Nels
----- Original Message ----
From: Mike <
k4gmh@...>
To:
Homebrew_PCBs@yahoogroups.comSent: Tuesday, January 9, 2007 5:24:57 PM
Subject: Re: [Homebrew_PCBs] Toner transfer touch-up?
Hello Nels,
I've had reasonable results using a Sharpie Permanent Marker to fill
in toner transfer voids. They can be obtained at just about any
store including larger grocery stores. I've found them with a fine
tip at one end and a "ultra fine" tip at the other. Makes it nice to
have both tips on a single pen.
Sometimes when a quick board with a small amount of components for a
home project is need, I just draw it on the PCB with the
pen. Electrons don't care if the lines have size variation, etc.
At 11:48 AM 1/9/2007, you wrote:
>I am attempting my first toner transfer home board etch. The
>transfer went better than I had expected for a first try, but there
>are two voids in some filled pad areas that I would like to touch up
>before going to the etch tank. I know Radio Shack has a resist
>marker available, but I was curious if there are any other options
>that would save me the 10 mile round trip to the local RS? I
>suppose I could strip the board and try another fresh transfer, but
>the rest of it looks very good, if these two spots could be touched
>up. Is touch-up a viable option, or a bad idea?
>
>Nels
>
>
>
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73,
Mike, K4GMH
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