This link below will allow you to make a copy of the spreadsheet that both Aren Hill and myself have developed and used over the last couple years.
It isn’t quite as polished as I would like, but it gets the job done. Feel free to poke around and leave a comment if you find anything that seems wrong, have any questions, or any suggestions for future revisions.
Here is an index of what is included in the sheet currently:
Motor Combiner 1
Motor Combiner 2
Single Speed Drive
Available Drive Components
Momentum Vs Traction
Link to create a copy of the sheet: