On Monday 12 April 2004 06:43 pm, Dan Devine scribbled: > I have been doing that with Eagle too.... I've found that the maximum > "free" size of Eagle is very usable for most of my projects. I will be > purchasing the professional version, but more for the added layers than > the bigger size. Also been thinking I might like to (or need to) do a 4-layer board someti= me=20 soon. > I've built a number of projects where I've stacked the boards. > Processor board (PIC of course ;-), I/O board, Amplifier board, LCD, > etc. I've been using single and dual row headers to interconnect to a > female socket on the mating board. Works well, and can be pulled apart > for rework/testing. I've done a bunch of stacked boards like this, but I soldered the headers= to=20 both boards, with the intention of saving space (thickness). That is, of= =20 course, until I needed to make the first repair :-( Cheers, -Neil. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.