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Subject: Re: [Homebrew_PCBs] 4 Layer

From: "Jeremy Taylor" <jeremy@...>
Date: 2004-06-20

Thanks for the reply. I have PTH, Tin/lead electro, and cnc. I was hoping it could be done, What particular brand of epoxy did you use, and did you need a layer of insulating material between boards, or did you use single sided outer boards, with an inner double?
Did you put your vise~glue~boards sandwich in the oven, or did it air dry. How does it hold up??

JT
----- Original Message -----
From: Markus Zingg
To: Homebrew_PCBs@yahoogroups.com
Sent: Sunday, June 20, 2004 5:28 AM
Subject: Re: [Homebrew_PCBs] 4 Layer


>What is needed to make 4 layer boards, a press (hot or not) and some sort of
>glue?
>
>JT

I sucessfully did this with 5 minute epoxy and a homebrew little
simple press consisting of two vices.

The most important part though is that you definately will need a
through plating station or else you will not be able to connect the
inner layers to the outer ones - errr, or then you have a method I'm
sure others would be interested to hear about.

Markus



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