Killing an obround
Killing an obround
(OP)
A sheet metal drawing I'm regenerating in SW has an odd cruciform detail, clearly formed by hitting the part with obround punches on crossed axes. Modeling it in SW has turned out to be, uh, interesting.
The screenshot I've attached was taken after this sequence of events:
- Extruded Cut from Sheet Metal toolbar.
- Place Centerpoint Straight Slot from Sketcher, twice, one horizontal, one vertical, at the same location, in this case 0.82" from the edge at the top of the screen.
- Size the obrounds so both have a radius of 0.17, and they measure 0.57 and 0.67 over the semicircles.
- Trim out all the gook from the insides. This produces two error messages to the effect that you are 'destroying the obround' or some such. Okay, find, I don't care whether they're still obrounds internally or not. I just want to produce a continuous perimeter.
- Change the edge dimension from 0.82 to 0.62, which should move everything associated with the dimension.. or would, if they were still obrounds.
Notice that there is a cruciform of centerlines and two semicircles, all in a light umber color, remaining in the original location. There are also four very short black lines tangent to the ends of the umber arcs, where there were short line segments remaining in one of the obrounds after the interior was trimmed.
I cannot find a way to select and erase them.
Did I miss another lesson here?
The screenshot I've attached was taken after this sequence of events:
- Extruded Cut from Sheet Metal toolbar.
- Place Centerpoint Straight Slot from Sketcher, twice, one horizontal, one vertical, at the same location, in this case 0.82" from the edge at the top of the screen.
- Size the obrounds so both have a radius of 0.17, and they measure 0.57 and 0.67 over the semicircles.
- Trim out all the gook from the insides. This produces two error messages to the effect that you are 'destroying the obround' or some such. Okay, find, I don't care whether they're still obrounds internally or not. I just want to produce a continuous perimeter.
- Change the edge dimension from 0.82 to 0.62, which should move everything associated with the dimension.. or would, if they were still obrounds.
Notice that there is a cruciform of centerlines and two semicircles, all in a light umber color, remaining in the original location. There are also four very short black lines tangent to the ends of the umber arcs, where there were short line segments remaining in one of the obrounds after the interior was trimmed.
I cannot find a way to select and erase them.
Did I miss another lesson here?
Mike Halloran
Pembroke Pines, FL, USA






RE: Killing an obround
The umber stuff appears to be some kind of intermediate layer that eventually disappears.
I moved the rest of the cruciform into the proper position, reconstructed the short lines to connect the arcs, saved the whole mess as a block, and used it.
Mike Halloran
Pembroke Pines, FL, USA
RE: Killing an obround
RE: Killing an obround
Mike Halloran
Pembroke Pines, FL, USA