VEXPro 2014: After The Season

[DampRobot]

Originally Posted by Thad House

2 more suggestions, and they are both about CAD.
2. Fix the hexes. Maybe this is something only I do, but usually I like constraining hex shaft to the hex bores. For some reason, the hex bores in all the VexPro parts are all over the place in dimensions, so it is next to impossible to directly constrain hexes.

This is probably because the nominal size of the hexes varies. For example, I'm pretty sure the bearing fits are .500", the gears, sprockets, and pulleys are about .502" nominal, and the spacers are probably a bit larger than that.

I'd rather have the VP CADs be the correct size. I like hexed things based on features concentric to the shaft (like the hub OD) and then make one part of the hex on each of the two parts parallel rather than making two parts in each of the hexes coincident.