I milled out a few more boards today and soldered together a few boards. They work, but hand soldering in vias is a PITA! But, hey it is a small price to pay to go from idea to board in a few hours. The biggest challenge is getting solder to wick up the DB9 pins as the through holes are not plated. A slightly larger hole and lots of flux did the trick though.
On the second board I put together I was not paying attention and soldered the connector on the wrong side of the board! :-[
It turned out to be a happy accident though. I laid the board out intending to use a female DB9. It turns out you can mount a male DB9 from the bottom of the board and all the pin numbers work out correctly! This means you can use the same PCB with either connector.
I’ll fix up the silk screen to indicate which side of the board each connector type should be soldered from and then get a batch of them made up.This would be a good DIY board as there are only two components that need to be soldered on.
Edit: Forgot the image :