Hello @cypher-5, Along with playing in @apolymask IFC, I also work with the newbieresteem team. A couple of things to think about when making a post is what tags will get you the most exposure and help people of similar interest find you. You use your machine to "Design" things, so using the #design tag would be appropriate, You plan on showing people how it is done so the #howto tag could be used, and well it is a pretty new piece of technology so you could use the #technology tag.

For a community one of them you might want to look at is @steemstem
(Community Project to Promote Science Technology Engineering and Mathematics Postings on Steemit), they are the scientist and engineers type community. I don't know how much engineering you do on the machine but they may be a community to look into.