ian wrote:Nice work. I notice SparkFun's staggered pin header footprint in there. Have you used it before? Do you like it? I open have a problem with header staying straight, but I use lots of sticky-tack (poster putty?) to hold stuff down when I solder and that seems to work.
I love these staggered headers from SparkFun. I used them for the 6-pin header on the BPv3-FTDI-0.2, and for all of the headers on the 0.3 version. The 0.2 was the first board I had produced by a fab house, and the staggered header was perfect, it held the header in just the right place without any real difficulty placing it in. This is especially handy for right-angle headers (which I think might have been the original reason the dude at SparkFun developed them.
I've used them on all of my homebrew boards, but honestly, my drilling process (drill-press with squinting-eyeball-based alignment) is not precise enough to say for sure whether it makes any difference. Certainly most of my home-drilled headers are snug, some of them, I have to enlarge (by "drilling" with one blade of my flush cutters on each side until the hole is enlarged enough)
Sjaak wrote:For soldering headers I use a breadboard where I put the header in, pcb on top, and then solder the header.
I like to do this, but depending on the placement of other components or headers, there is not always room, that's why the staggered headers are nice. I use them for everything now.