Hi Matt, thanks and welcome to the forum and to MoI - I'm glad that you were able to be productive with MoI so quickly, that is really cool!

Rhino is a pretty useful tool to have along with MoI, since it is kind of like a swiss army knife with a whole bunch of different tools, and you can share models back and forth between Moi and Rhino by Copy/Paste between them as well. But yeah Rhino is basically set up to be similar to AutoCAD in many ways. That makes it easy to use if you happen to have a background in AutoCAD but if you don't then all that AutoCAD-type stuff can be pretty strange especially when you're trying to learn it initially.

Many of the kind of overall strategies for how to build things are pretty similar between MoI and Rhino though (like when you would do a sweep, when you would do an extrude, when you would boolean, etc...) so I would not be surprised if Rhino would start to make some more sense to you after you've spent some more time in MoI as well.

Looks like you are off to a great start! It would be great to see some of your results that you cut on your CNC router after you get it all set up!

- Michael