The recipe for basic Assembling Machine includes the number 1. Taking a peek down the tech tree, I'm not going to get ability to make 1's until yellow science. Am I missing something here, or am I expected to handcraft everything until then?
This was in fact, a bug (it also affected like half of all recipes). Version 0.2.0 fixes this issue.
I don't really know how that one slipped past me, but thank you for bringing it to my attention ^w^
