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Question about draft on surfaces

Question about draft on surfaces

Question about draft on surfaces

(OP)
I'm asking this for a buddy of mine.

He's new to UG (NX) and is having problems drafting surfaces.  As far as he knows, he can only select a plane or an edge as the neutral reference for the drafting angle. He wants to know if it's possible to select a surface as the neutral reference.

Can anyone give us some help?

RE: Question about draft on surfaces

Which version of NX?
NX2 has got more options to draft and can draft from a parting surface I suppose.

Thanks

RE: Question about draft on surfaces

If I understand the question correctly you are talking about the draw direction (step one: pick surface or edge of a surface to taper, step two: pick draw direction). If this is the case you can use the pull down menu to use any vector construction method you wish (an existing line, two points that you specify, X axis, etc etc). Of the options available, I like to set up a datum axis as my draw direction. One big advantage of this is your tapers will be associated to the datum axis, so if you need to tweak your draw direction all the associated tapers update automatically.

Even if it lets you pick a surface as a reference, I advise against that. I doubt that it is possible unless the surface is planar because it would not specify a vector (use the u direction? v direction? surface normal? - at what point on the surface?). The datum axis gives you control; just be sure that it is ordered before the tapers (create it before the tapers or simply reorder it in the feature list).

RE: Question about draft on surfaces

Hi.
Sorry I can't answer your question However I understand exactly what you want. I.e controlling rib thickness where joining to main surface is important to avoid sinkmarks in plastics.
In Catia v4 & V5 you can pich a neutral surface or even a skin of surfaces(v4) as a neutral plane and then simply define your draft direction by line or plane.
I would be surprised and dissappointed if UG doesn't have that capability since it's regarded as a far better solid system than Catia v4.
 

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