May I know how Solidworks generate the offset geametry of a curve? What is the algorithm used behind? Because when i offset a curve, there is always a limited offset distance and im so curious to know how this limit can be determined.
Can anybody help me over here?
It is user discoverable. Try it, if it does not fail then that is what it is. Solidworks never seems to say what the features actually are intended to do.
Its usually fairly logical actually, when offsetting fails i find that one of the elements (usually a fillet) has been completely eliminated hence the error, the software does not know what to put in for that element. My usual solution is a partial offset of the bits that are possible and then i filll in the gaps manually. Remember SolidWorks is not (quite) self aware. give it a few years ;-)
Thanks for you explaination. Yes it makes sense that fillet offset may have this limit. But what i used is actually a spline curve, how should this be explained then?
If you create an offset of your spline, and modify the distance until you are at the limit of failure.
The limit is the sharpest curve on the offset.
Zoom right in and you will see a very jagged profile.
I don't know what calculation SW uses for the offset, but I think the limit of failure must be when the offset line is no longer valid (self intersecting or similar)
Thnks for your answer. I totally agreed with wat u said. I ll keep trying to find out the equations.
Remember SW will not allow a single sketch entity cross over itself, so if an offset spline fails this is the cause, we call this fish tailing, we see this alot as machinist using CAM software where the cutter goes past where it supposed stop and then it cuts the backside of the geom, like a rad, making it look like a fish tail
Thanks for your reminder.
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