cutting object with SPLINE?

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  12 December 2012
cutting object with SPLINE?


I'm trying to cut a simple cylindrical like shape (top and bottom deleted) with a simple open spline. I've tried using ShapeMerge* but it doesn't work. I've tried closing the shape but no luck. I'm guessing the fact that the cutter goes well outside the object creates this problem...

What am I doing wrong?

*edit: I said ProCutter but meant ShapeMerge.

Last edited by olivierth : 12 December 2012 at 10:46 PM.
  12 December 2012
You should apply the extrude modifier toyour spline so it intersects the mesh. Then use procutter.

  12 December 2012
Hi Nickolay411,

Sorry, I meant to say that I used "ShapeMerge" not "ProCutter".

This being said, I also tried extruding the spline like you said to use it with ProCutter. I also made sure the "cylinder" shape didn't have holes at the top and bottom but it doesnt work....

Could it be the objects are too complicated for ProCutter?

  12 December 2012
Pro Cutter should work. Make sure you are doing the correct boolean operations.

Attached is an image.
Attached Images
File Type: jpg procutter.jpg (84.8 KB, 18 views)
  12 December 2012
It's been a while since I did this. I seem to remember that it's important what transforms are on the spline and maybe the object too. If you do both created in the top view then it cuts the top of the object. If you rotate the spline 90 degrees it cuts the side. So it looks like it's projecting down the local Z axis. Whether this means it'll work around a cylinder or not I don't know. Probably not. ProCutter might be a better approach.

Be aware that this also cuts all the hidden edges which can leave a messy object. You might need to clean up a lot of extra verts because of that.
  12 December 2012
Thank you Nickolay411 for taking the time and trouble to create the image. I ended up just using ProBoolean instead to do the job.

Hi robinb! If you're talking about ShapeMerge, you need to align the view so the shape is aligned with the object. In my case, the right view. I don't think any transform/pivot rotation matters.
  12 December 2012
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