ProE Import problems.

When doing a drawing of a part imported from ProE I'm seeing lines coming of the part. The part seemed to import all right but the TOOLS/CHECK reveals 3 general faults. Anyone have this problem/solutions.

Reply to
AlanC
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You have to manually remove the faults and replace those surface(s) and knit the solid back to gether and turn it into asolid.

Regards, Scott

Reply to
Scott

Alan,

Allot depends on the accuracy of the Pro-E part. Solidworks does everything to a fixed internal accuracy, this is not user configurable. Pro-E uses a variable accuracy (part/feature size dependent) as the default. The user can choose to use a fixed accuracy, and can specify the value. Most users use the default mode because it's faster. In many cases, parts saved in this format aren't accurate enough for parasolid to solve.

Regards

Mark

Reply to
MM

Curiosity question: What is the tolerance value used?

Ditto on that. Might also be a good idea to have them make sure they can regen the model to an appropriate (?) abs tol without creating Geometry Checks.

Reply to
Jeff Howard

Jeff,

Solidworks uses double precision 64 bit math, with an accuracy of 10e-8 units

Regards

Mark

Reply to
MM

Many thanks, Mark.

Do you (or anyone) know what accuracy is used for polynomial / NURBS intersections? This is usually a value somewhat larger than absolute (vertex) tolerance, I think, used for complex surface intersections, variable radius fillet edges, etc. ACIS uses a variable called ResFit (typically 1e-3) for these calcs. Mostly a curiosity thing, but maybe useful info for someone using Pro/E, Rhino, etc. that allow tolerance setting.

Maybe a better question would be: What edge coincidence tolerance is recommended for reliable translations to SW?

Thanks, again.

Reply to
Jeff Howard

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