unilateral GD&T

[malis]

Is solidworks capable of putting in unilateral GD&T callout on a drawing. I cant find it?

Thanks,

jeff

 

[Heckler]

I believe you will have to use Bilateral +.005 / -.000

 

[malis]

Its for profiling a line.

 

[TheTick]

OK, I'm stumped. What's "unilateral GD&T"? I thought GD&T callouts were unilateral unless otherwise specified.

 

[ctopher]

Why not dim to curves or points, then use the Profile symbol with tol?

Chris
Systems Analyst, I.S.
SolidWorks 06 4.1/PDMWorks 06
AutoCAD 06
ctopher's home (updated 06-21-05)

 

[GTCadGuy]

You will have to do a workaround. I usually offset the entites and then add a dimension and remove the text to show the direction of the tolerance.

SolidWorks 2006 - SP3.0
UG NX3
Pro/Engineer Wildfire 2.0

 

[EniEddie]

SolidWorks 2007plus or SolidWorks 2008

 

[malis]

Thanks for the info. Hope SW adds that feature.

 

[ewh]

IAW ASME 14.41-2003 DIGITAL PRODUCT DEFINITION DATA PRACTICES, a unilateral profile tolerance no longer requires a curve to define its extent and is called out as follows:

profile symbol | tolerance; outward symbol ("U" in a circle); tolerance applied outward |datum(s)

If the tolerance is inward, the "tolerance applied outward" is negative.

Apparently it was not enough of a change to update ASME Y14.5, so it was included in 14.41. Of course, most of us are governed by Y14.5 at this time, but there are other options out there.

 

[Sporkman]

If you're trying to do something like apply a tolerance on a bore size wherein you want, say, +.0002 minimum oversize to +.0008 maximum oversize, then just place a plus (+) sign in front of the MINUS tolerance value. It ends up showing correctly in the drawing with both max and min tolerance showing a plus prefix.

Mark Stapleton
Watermark Design, LLC
Charlotte, NC

http://www.h2omarkdesign.com