Journey's End

Evolution of a circuit layout

[](http://www.flickr.com/photos/sentientintelligence/2646562132/ "photo sharing") [evolution of a circuit layout](http://www.flickr.com/photos/sentientintelligence/2646562132/) Originally uploaded by [sentientintelligence](http://www.flickr.com/people/sentientintelligence/)

Half way mark to a 4 channel motion controller. Version 3 of the layout seems to work well and was relatively easy to duplicate by eye. In fact I hardly used the schematic at all.

The new lead free solder (1mm) I am using is much too thick for my liking, I ended up using more solder than I normally would, and made some unintentional bridges which caused problems. That and one of the diodes were wired in reverse.

I really need to find some sub millimeter lead free solder - no one seems to stock them here in Australia :-|

Cheers,
Steve