Building Pad Problem

[rudolfweyers346383]

See attached pic. I have 2 building pads next to each other beneath the paving, but at different angles. For some reason there is a thin slither created on the common edge of the 2 pads. why?????

[patricks]

This has been an issue ever since pads were allowed to be sloped. I always have the same issue when I try to do a building pad under a slab and then another pad under a ramp coming up to that slab. It's very annoying and there is no fix that I'm aware of.

*edit* I just tried it in 2012 and it seems to work without that sliver. What version are you in?

[Mike Sealander]

Split your surfaces. I've started to split the surface at the foundation footprint, and then place a pad on that surface to model the foundation backfill (assuming that's what's being built).

[patricks]

Oops I didn't see the 2012 prefix on the thread title. Odd that it didn't happen when I tried it just now. However that seems like a good idea about splitting the surfaces.

Sometimes I will model a thin pad as a vapor barrier under my slab to make building sections look correct, and then do another narrow strip of a pad under the wall itself, down at footing level, so that in my building elevations I get a hard line where the topo meets the building walls. But then when I run into ramps I've had problems in the past with the thin sliver sticking up, despite picking the lines of the adjacent slab or pad when sketching the sloped pad.

[nancy.mcclure]

We've tried using suuuuuuper thin pads, too, in the hope that the sliver at the angle wouldn't appear - no dice.

Spliting the topo works, but then you have to manage grading alignment between the sections. With some projects, that's too time consuming. I've resorted to no sloped pads - set as horizontal at the lowest needed elevation, and use a filled region in the section views. Better than sacrificing seeing the surrounding topo in 3D views.

[rudolfweyers346383]

Ive offset the common edge between the 2 pads by 1mm and that seem to have done the trick in this instance.

[Mike Sealander]

Interesting, and good to see you figured it out.