O-Rings: How do you mate them into an assembly?
O-Rings: How do you mate them into an assembly?
(OP)
Folks,
I have generated o-rings using the SWEEP function and want to mate them into my assembly.
As mates can only be generated on a planar, cylindrical, spherical, conical surfaces - what tricks do you guys use to locate o-rings in assemblies?
I know this sounds like an assignment question - be assured it's not!
Thanks
I have generated o-rings using the SWEEP function and want to mate them into my assembly.
As mates can only be generated on a planar, cylindrical, spherical, conical surfaces - what tricks do you guys use to locate o-rings in assemblies?
I know this sounds like an assignment question - be assured it's not!
Thanks






RE: O-Rings: How do you mate them into an assembly?
RE: O-Rings: How do you mate them into an assembly?
Best Regards,
Heckler
Sr. Mechanical Engineer
SW2005 SP 2.0 & Pro/E 2001
Dell Precision 370
P4 3.6 GHz, 1GB RAM
XP Pro SP2.0
NIVIDA Quadro FX 1400
Do you trust your intuition or go with the flow?
RE: O-Rings: How do you mate them into an assembly?
Mike Elias
Wellstream International Ltd.
RE: O-Rings: How do you mate them into an assembly?
A few best-practice tips:
Create the o-ring centered on the origin (in a sweep, that's the path, not the profile). This will place the origin and reference planes in a perfect location for mating without needing distance mates. Every time you locate something using a dimension, that's one more variable to change if the design changes. I try to only use distance mates if the distance is an important, driving dimension.
Create the o-ring as a revolve instead of a sweep (unless it's not circular!). Revolves rebuild faster than sweeps.
RE: O-Rings: How do you mate them into an assembly?
Making the best use of this Forum. FAQ559-716
How to get answers to your SW questions. FAQ559-1091
Helpful SW websites every user should be aware of. FAQ559-520
RE: O-Rings: How do you mate them into an assembly?
Macduff
Meggitt Airdynamics Inc.
Senior Designer/Checker
Dell Precision 370
SW2005 Pro SP 1.1
XP Pro SP2.0
NIVIDA Quadro FX 1300
RE: O-Rings: How do you mate them into an assembly?
Making the best use of this Forum. FAQ559-716
How to get answers to your SW questions. FAQ559-1091
Helpful SW websites every user should be aware of. FAQ559-520
RE: O-Rings: How do you mate them into an assembly?
Making the o-ring using the sweep function isn't "the way to go"
Can't believe I went to all that trouble when a revolve was the obvious answer.
What a great site - you are never on your own!
Pat
RE: O-Rings: How do you mate them into an assembly?
We start with a very small dia. revolve sized to be inside each configuration to use as a base. Then the relaxed state revolve is added over the base revolve. Each additional configuration then adds a new revolved sketch which mimics the shape of which they are to be inserted into.
O-Rings in a working/compressed state will always have at least one flat surface (if ever so small) (kinda like a rectangle with rounded edges in the simplest case) that we use for mating purposes. That way, one concentric and one coincident mate takes care of everything.
Remember...
"If you don't use your head,
your going to have to use your feet."
RE: O-Rings: How do you mate them into an assembly?