Filling up small cracks between solids
Filling up small cracks between solids
(OP)
Hello All,
I am trying to align 2 solid bodies so they intersect without forming small-area faces.
Then my goal is to combine them in a single volume and avoid "cracks" or short sticking-out edges.
What is your strategy on that?
I thought of:
1) build edges that coincide with the crack edges (here is a problem, because some of these edges are curved)
2) fill surfaces
3) close all fill-surfaces and create a solid volume inside the crack like a "tooth filling"
4) combine all voulmes
Any ideas?...
I am trying to align 2 solid bodies so they intersect without forming small-area faces.
Then my goal is to combine them in a single volume and avoid "cracks" or short sticking-out edges.
What is your strategy on that?
I thought of:
1) build edges that coincide with the crack edges (here is a problem, because some of these edges are curved)
2) fill surfaces
3) close all fill-surfaces and create a solid volume inside the crack like a "tooth filling"
4) combine all voulmes
Any ideas?...






RE: Filling up small cracks between solids
Jeff Mowry
www.industrialdesignhaus.com
A people who value security over freedom will soon find they have neither.
RE: Filling up small cracks between solids
The voids are along the edges. If one solid is extruded, I guess it has to intersect the other but without leaving its boundaries (this will create short edges and small faces atht stick out)
RE: Filling up small cracks between solids
I'm not sure I fully understand your situation, but you might have good results with the Delete Face command (Insert, Face, Delete). You can use this with the "Delete and Patch" (default) option checked to remove little slivers of material or to fill in voids.
May not be applicable in your situation - can't tell without a screen shot.
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
All the time I do Tools/Check in SW and get no error messages from SW. GAMBIT is more sensitive though.
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
Mostly I see the short edges appear between 2 solid bodies I am trying to join
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
Once I do Tools/Check/Short egdges 0.001m then they show up.
RE: Filling up small cracks between solids
Jeff Mowry
www.industrialdesignhaus.com
A people who value security over freedom will soon find they have neither.
RE: Filling up small cracks between solids
You might just have to resort to rebuilding your geometry in a fashion that eliminates the short edges/slivers, as painful as that might be. You will probably end up with subtle differences in the geometry, but you're going to end up with an approximation of your geometry once you mesh it anyway.
Do you have any cleanup tools (merge edges, etc.) within GAMBIT? That might be your best bet altogether if the option is there.
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: Filling up small cracks between solids
Why is there misalignment? What is causing it?
Perhaps I'm missing the problem and over-simplifying, but the intersecting portions could be trimmed off with a plane or surface passing through the common intersecting points.
RE: Filling up small cracks between solids
I managed to avoid cracks by changing my model and then formed an assembly, used mating to constrain the positions of the bodies. In particular, I chose 1 face on each solid and forced these faces to be "coincident" with opposing normal vectors. Then by using the magnifier I was able to adjust the needed edges so that they became coincident with high degree of precision.
Mostly, the answer of the issue was:
1) form an assembly
2) do mating
Thank you for all suggestions.
RE: Filling up small cracks between solids
How were you aligning parts?
Why do you need to use the magnifier to "to adjust the needed edges so that they became coincident with high degree of precision"?
RE: Filling up small cracks between solids
RE: Filling up small cracks between solids