I'm trying to sweep a profile curve along a path curve, where the path curve (the one to which I'll apply the bevel) is a simple set of straight lines and right angles.

When I set the path curve's Bevel Object to the profile curve, I get roughly the desired result, except that the size of the profile curve gets bigger as it approaches the ends of the path. Why is that, and what do I do about it? (I tried setting a straight taper curve, but that doesn't help.)

Here's a simple blend file showing the problem:

enter image description here


  • $\begingroup$ Usually if I am working with a Curve, I am able to select a control point and use Alt-S to Shrink/Fatten the curve at that point. Yours seems to be locked somehow. $\endgroup$ Commented Jan 5, 2017 at 2:08
  • 3
    $\begingroup$ Please edit your question add images of the issue. Do not make the question dependent on people downloading your file only. And in the future use blend-exchange.giantcowfilms.com/to make a permanent link to the file. If the link to your file disappears from the current host then your question will not be useful for other users who are facing a similar problem/ $\endgroup$
    – user1853
    Commented Jan 5, 2017 at 3:52
  • 2
    $\begingroup$ the profile doesn't get "bigger as it approaches the ends" it actually gets narrower in tight corners. It's a limitation of the current bevel system, see the comment above for more details. $\endgroup$ Commented Jan 5, 2017 at 3:58
  • $\begingroup$ See what happens when you turn on 2D in the Curve. $\endgroup$
    – hawkenfox
    Commented Jan 5, 2017 at 13:17
  • $\begingroup$ @ Craig D Jones ... yeah I was wondering why his curve couldn't do the Alt-S modification on the ends but I made a copy of the original curve and then it worked! Strange. $\endgroup$
    – hawkenfox
    Commented Jan 5, 2017 at 13:24


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