Was that drawing created from that model?. Im OCD too and wonder where the radius near the top fell off the model. from the top you have a 1/4wide flat dia, a cove, another flat and then a radius... that radius isnt in the model
Chris, in SketchUp when I create a round column I start w/ a flat, 2D drawing of half the profile, then use "follow me" to fill out the column. If you're not familiar w/ creating a column in SU, this may sound confusing. Dave can probably explain it better than I did.
For the dimensions, I take that flat, half profile and turn it into a full profile. I then apply my dimensions to that. To turn the half profile into a full profile, copy and move the half the distance of your overall diameter, then flip it along the axes (in my case, the red axis). Again, Dave can probably explain this better.
As for that undimensioned radius, that is a transition from one known dimension (3d) to another (2d). Once I have the two diameters established, it is a simple matter to freehand that radius. Actually, all the dimensions on the left side are diameters. SU will actually give you the radius, but once I get to that point, I go w/ whatever is visually pleasing to the eye.
Out of curiosity, will you be leave the transition from square to round sharp as you show it in your model?
Good catch, Dave. No, I'll fade the transition up about 3/8 - 1/2". I just didn't know how to show that in SketchUp. :wconfused: