I CAN'T SOLVE THE CAPTCHA! I'm as dumb as a robot.
nikkipollard: I know it's crazy, but Floor() doesn't work and I tried floor() but that consistently crashes Turbocad. The only usable documentation I found is at http://www3.turbocadcommunity.com/tiki-index.php?page=Parametric+Part+Manager
and there isn't much to it.
Thanks Torfinn, but the issue I have is that I don't know the size ahead of time. The idea is for this to be a part of a much larger assembly, I'm getting the size by passing in another part and grabbing the Extents. We use tongue and groove construction, for example here is the working groove macro I wrote:
LeftGroove = SetProperties(
RightGroove = SetProperties(
TopGroove = SetProperties(
BottomGroove = SetProperties(