Section cuts of revolved assemblies cannot exclude parts
Section cuts of revolved assemblies cannot exclude parts
(OP)
I am generally having problems with section cuts of a simple assembly of revolved parts with holes (flanges, covers and screws).
When I use the "aligned section view", using a simple sketch of 2 or 3 lines, the resulting view
has parasite lines and does not show the screw threads, even when I insert them using "insert model items".
My original goal was to have a 3-segment section line with a concentric arc in it, because I want to show items which are located at different angles
and things get even worse. No thread lines and it becomes impossible to exclude certain items using the "section scope" feature - they are relocated or simply disappear.
This is very repeatable and looks very much like a bug in the software. Any ideas?






RE: Section cuts of revolved assemblies cannot exclude parts
SW07-SP3
RE: Section cuts of revolved assemblies cannot exclude parts
RE: Section cuts of revolved assemblies cannot exclude parts
I want to make a section view in a drawing from a complete 3D part.
I have a rather simple assembly of about 6 parts, all axisymmetrically arranged and parallel but in different quantities or angular locations (2 M12 screws at Rad 50, 12 and 6 o'clock, 16 springs at rad 40, 4 x M5 screws at Rad 30 2/5/7/10 o'clock). I want to show all of them in one section view.
So ideally I should do a section view with a section line made up of 3 segments: one from 12 o'clock to center, one from center to let's say 4 o'clock, one concentric curve from 4 to 5 and one from 5 to outside (still intersecting the center).
This works if you use a suitable sketch and does not look too bad (note that it only works with section view - NOT with aligned section view).
Problems arise however when you start excluding the fasteners - then they disappear or are relocated. And the threads are only shown for half the section, if at all.
Note that all this works OK in a section view made up with 2 lines only, intersecting at the centre.
I have also tried replacing the concentric arc with a straight line, but then I get parasite lines and strange cutoffs.
I am kind of surprised that I could not find any references to such problems on the net. This stuff looks kind of basic to me!
Hope this clarifies my predicament!
Enrique
RE: Section cuts of revolved assemblies cannot exclude parts
Also, from SW Help:
Chris
SolidWorks 07 3.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 03-26-07)
RE: Section cuts of revolved assemblies cannot exclude parts
http
SW07-SP3
RE: Section cuts of revolved assemblies cannot exclude parts
RE: Section cuts of revolved assemblies cannot exclude parts
Only I want to show this in an assembly with several parts and washers. Apparently ISO demands that fasteners not be sectioned (hence the "exclude fasteners" function in SW). This looks however like a disaster when complicated section lines are used...