Onshape recently added a feature to include variables, and it was the update I had been waiting to see, but not the one I asked for.
Entries in Instructables
This project began when a buddy of mine sent me a link to his then-new keychain.
My immediate thought: I could do that!
I am a big fan of archery. I have been since first taking up a bow during a P.E. class way back in high school (arguably the best part of my high school experience, P.E. or otherwise), feeling the tautness of the string as I drew the arrow back, and the sweet satisfaction of nailing the target upon release.