The pipe feature is excellent, but in trying to design an exhaust system I found a major limitation. There is no ability to 'flare' the pipe diameter in certain areas. If the program was able to create a sculpt-able web of points on the pipe, which could then be manipulated in 3D space allowing for flaring of the pipe in certain areas. In designing two stroke exhausts this would be unbelievably helpful! See this video for the type of design work that otherwise has to be done (the video is on solidworks since that's the only example I could find)
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