Bent wire shape: Profile of a line ?
Bent wire shape: Profile of a line ?
(OP)
I need to specify a wire part that is bent in three dimensions. After the wire is formed by Supplier A, it is coated with Plastisol by Supplier B.
The Supplier A will use a check fixture for the unfinished part. The wire geometry matters. We don't care how thick or even the coating is, as long as it meets a minimum thickness.
The simplest way to specify the part seems to be identifying an ideal 3-D path for the centerline of the wire and allow some variation vs. that ideal shape.
Specifying the profile of the edge of the coated part isn't what we need to control. Can I specify a line profile for the centerline of the wire?
If not, how do you recommend I specify the geometry of the bare wire underneath the coating?
Mark Anderson
Senior Mechanical Engineer
Anesthesia Machines
The Supplier A will use a check fixture for the unfinished part. The wire geometry matters. We don't care how thick or even the coating is, as long as it meets a minimum thickness.
The simplest way to specify the part seems to be identifying an ideal 3-D path for the centerline of the wire and allow some variation vs. that ideal shape.
Specifying the profile of the edge of the coated part isn't what we need to control. Can I specify a line profile for the centerline of the wire?
If not, how do you recommend I specify the geometry of the bare wire underneath the coating?
Mark Anderson
Senior Mechanical Engineer
Anesthesia Machines





RE: Bent wire shape: Profile of a line ?
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
http://www.gdtseminars.com
RE: Bent wire shape: Profile of a line ?
The wire needs to thread a 3-D path between and around stationary obstacles that sit in the same 3-D space. It's a 3/8" diameter wire guard that protects electrical connectors from being bumped and broken off.
Any "boundary" I define would have to snake around in 3-D space. I could specify a surface profile, but that would be tied to the surface of the coated part (or surface of the bare part). It seems much more intuitive to specify the path of the centerline of the wire.
If this can be done with a "position" symbol, please provide more detail.
-- Mark
RE: Bent wire shape: Profile of a line ?
http://www.eng-tips.com/viewthread.cfm?qid=313733
Peter Truitt
Minnesota
RE: Bent wire shape: Profile of a line ?
RE: Bent wire shape: Profile of a line ?
Jim Sykes, P.Eng, GDTP-S
Profile Services www.profileservices.ca
TecEase, Inc. www.tec-ease.com