Check out the WIKI!
The -dev.jars are for development purposes. I will put them as additional files next time.
Currently supporting 1.7.10 & 1.12.2
If there are demand for other versions of Minecraft between these two, I will make them.
With this command-line based calculator, you will be able to compute all the materials you need, AND all the crazy machine crafting steps you have to go through in a split second!
The Calculator DOES NOT have a recipe (yet) because it's kind of useless in vanilla Minecraft. In other words, if you have some tech mods you should probably add a more reasonable recipe by yourself. The calculator can be found in the "Tools" creative tab.