Comment by ehnto

I had a similar thought years ago. Recently I built a CNC machine and it was a great blend of hands on, practical building work and software work. The software domain being a new challenge was fun too. It felt great to excercise existing skills in a new domain, to reach a new totally novel goal for me.

Now I barely use it, which does suggest that building it is what I really wanted to do all along and that kind of validates that robotics is probably a hobby I'd enjoy.