[Spark]

I've found that it's helpful to CAD enough of the bot so you get a general idea to explain to others, but unless you cut an actual part on a CNC it's a waste of time to CAD beyond that. One of the greatest traps you can get stuck in is wasting lots of time on unnecessary details, such as putting in every single bolt, nut, and bushing. Unless there is really limited space there is no need to get realistic CAD models for most things. Using cubes and cylinders when possible, such as representing electrical components, does the job just fine and takes two-thirds less time.