Prototype museum started
Aug. 30th, 2011 08:49 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
johnridleyI got those machined pin sockets in today and got my Duck 20 prototype blinkie working again. I wanted to have it in running condition for historical reasons, and also if I wanted to do a talk on development at some point in the future.
For a few months I have been thinking that in the future I'd lay out my circuit boards so that as much as possible the traces would be on the bottom layer and the top would be only vias, so that they'd be easy to jumper or even replace the whole layer with jumpers. Then while reading a RepRap page about home-etched RepRap electronics, I discovered this has a name - 1.5 layer boards. IE can be professionally produced as a 2 layer board, but can also be easily home-etched as a 1 layer board and the top layer replaced with jumpers.
For a few months I have been thinking that in the future I'd lay out my circuit boards so that as much as possible the traces would be on the bottom layer and the top would be only vias, so that they'd be easy to jumper or even replace the whole layer with jumpers. Then while reading a RepRap page about home-etched RepRap electronics, I discovered this has a name - 1.5 layer boards. IE can be professionally produced as a 2 layer board, but can also be easily home-etched as a 1 layer board and the top layer replaced with jumpers.
