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

----- Original Message -----
From: "lnrrfan" <spfell@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, February 27, 2007 3:28 AM
Subject: [Homebrew_PCBs] Trying to learn about substrates


> Hi All!
>
> I am new to the list trying to learn about different PC board
> substrates. I think CEM-1 may be what I want but am trying to
> confirm. I've scoured the net today, as well as searched this list's
> archives, but haven't seen exactly what I am trying to find out ...my
> apologies if I've missed it somewhere.
>
> I have some PC board stock (purchased in 2002) that measures .056 in
> thickness and is single-sided board. It is an off-white/light tan
> color on the unclad side and appears whitish on the cut sides. Under
> magnification the cut edges appear to be almost an open cell type resin
> (possibly a paper/resin combo?). It's definitely not a stranded fiber
> as is some other stock that I have. Anyone have any ideas on what this
> substrate is?
>
> I want to get some more of this, or similar board, and am planning to
> cut it into very small sizes. It looks like .062 single sided board
> would work for me and be relatively easy to cut. I plan to cut using
> either my small hobby table saw with suitable blade or possibly my band
> saw with metal cutting blade.
>
> Easy (relatively) cutting is my main objectives, other structural and
> electrical properties are not critical for my needs. Any help in
> determining the best material for my needs is appreciated.

I use CEM-1 pre-coated board. It's easy to cut it by scoring it on both
sides with a Stanley knife and snapping it.

Leon
--
Leon Heller
Amateur radio call-sign G1HSM
Yaesu FT-817ND transceiver
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leon355@...
http://www.geocities.com/leon_heller