Eagle: How to convert a 2 layer board to 4 layer?

Question

I have a 2 layer design in Eagle 7.7.0 I want to convert it to 4 layer - basically insert 2 inner layers (power, ground). Can this be done, and if so, how is it done? Thanks, -Dave

autodeskguest · Accepted Answer

On 10/21/2016 12:28 PM, Dave Chambers wrote: OK, that helps a bit. played with the layer setup editor, and I understand what "*" and "+" mean, but the ascending rule is a bit odd. I want to be able to connect 1 and 2, 1 and 3, 1 and 4. No need to connect 2 or 3 or 4 to each other. How do I specify that? -- To view any images and attachments in this post, visit: https://www.element14.com/community/message/207844 Hi Dave, It is important to understand that you likely don't need to have to many different via configurations. The default through hole via, can reach all the layers. EAGLE will automatically isolate the via from any layers it is not supposed to connect to. Using blind and buried vias increases the cost of the board substantially. So unless you have a super tight layout I would discourage their use. hth, Jorge Garcia