Sculpt: spline convert/finish form self-intersecting surfaces

[Anonymous]

Hi,

I apologize for posting another question about this topic... I see many other posts concerning this issue, but I'm fairly new to Fusion360 so the responses are a little over my head. I'm hoping I can quickly get working again with my simple example.

I have a script that can import spline curves (are these sketches?), where each spline has 3 points and I'm using sketch.sketchCurves.sketchFittedSplines.add(points) to draw each curve.

Then in Fusion360 I go into sculpt and manually select all lines (drag window around object) and make them all into pipes.

Now I want to finish the form so I can save it off as an STL. But I'm getting this error message about self-intersecting surfaces.

I have read that I need to modify the curves so I don't get these errors, but this is a very small sample I'm showing here. My intent is to load many more of these lines to form a large object, so the task of cleanup would be daunting.

I have tried Utilities->Repair Body, and selected "auto repair", but it doesn't seem to do anything. I click "OK" from that dialog box, and then clicking 'Finish Form' gives the same error message.

I suspect the root cause is because the pipes are overlapping at the start/end points on the curves.

I'm hoping there's some way I can just tell Fusion360 to merge these bodies together and finish the form.

Is there an easy fix to this? Or maybe a different process to get to the same end goal?

I've attached the model in Sculpt state below.

Thanks!

Sean

[TrippyLighting]

Is there any particular reason you need these to be T-Splines as opposed to using solid geometry pipes ?

[Anonymous]

Hi,

I'm attempting to make a voronoi-type object, so was drawn to the spline pipes as they blend smoothly between sections.

I tried using solid pipes (when in model mode, right?) but the pipes weren't smooth.

And when using spline pipes in Sculpt, I am able to draw a select window around the object (when just curves, before making pipes) and select all the curves, so they are all made into pipes in one operation. But when using solid pipes in Model mode, I could not select all curves at once - I had to select each curve at a time. Additionally it got confused a few times as it wanted to make pipes only around a voronoi "face" and didn't want to draw pipes at intersections with those faces.

Sorry I don't have pictures to add right now that would make this more clear.

But if you feel solid pipes can be made to blend between sections (as I showed with the Sculpt pipe pictures), I'd be more than happy to try.

Can you outline a few steps I can try so I'm not going off in a wrong direction?

Thanks,

Sean

[Anonymous]

Hi,

I'm attempting to make a voronoi-type object, so was drawn to the spline pipes as they blend smoothly between sections.

I tried using solid pipes (when in model mode, right?) but the pipes weren't smooth.

And when using spline pipes in Sculpt, I am able to draw a select window around the object (when just curves, before making pipes) and select all the curves, so they are all made into pipes in one operation. But when using solid pipes in Model mode, I could not select all curves at once - I had to select each curve at a time. Additionally it got confused a few times as it wanted to make pipes only around a voronoi "face" and didn't want to draw pipes at intersections with those faces.

Sorry I don't have pictures to add right now that would make this more clear.

But if you feel solid pipes can be made to blend between sections (as I showed with the Sculpt pipe pictures), I'd be more than happy to try.

Can you outline a few steps I can try so I'm not going off in a wrong direction?

Thanks,

Sean

[jeff_strater]

@Anonymous, I replied on the other duplicate thread:  sculpt-spline-convert-finish-form-self-intersecting-surfaces.  Trying to do all these in one pipe will certainly produce self-intersecting surfaces.  It seems as if it may be possible to do it in separate bodies, but I'd have to try it on your model

Jeff