HELP any idea on creating a solid from the sketch?

[Anonymous]

Hey all,

I draw two profiles 1st concave and 2nd rectangle on two planes.

Then I've connected the edges with 4 splines.

Tried creating loft using the profiles and 4 splines as rails and failed.

I undestood it fails because the rail can't be tangent to a profile.

Any ideas on how to create a solid out of those sketches that would have the same shape as the imagined loft?

[TrippyLighting]

The thing is that this should be an easy to create loft in Fusion 360. However the sketches behave rather odd and thngs behave wildly when you drag stuff around.

It looks like you've properly projected the Rectangle and Curved profiel corner point to the rails sketches and constrained the splines to them.

I don't tsee how this should be sef intersecting. Looks like a fat bug to me!

[Anonymous]

Hi, there is a problem with the lines of one of your profiles overlapping, and at least one of your rails that I tested not precisely intersecting (these things are picky).  I made a screencast showing this and one way to to use include 3d geometry to quickly make rails.  When the screencast is done uploading and processing can be watched here http://autode.sk/1m7G7q0   Note the video starts lagging the audio by like a few minutes, but hopefully you get the idea.

Good luck!

Jesse

[TrippyLighting]

Oh shucks! I really only tested two of the rails and they looked fine. Yes, that whole construct is very fragile. If you pull around on the profile sketches the supposedly constarined rails sketches flip all over the pace.

[Anonymous · Accepted solution]

Hi Jesse,

thanks a lot for your time and making the screencast.

Obviously I made a sloppy sketch. My bad.

I got the loft working by redrawing the sketches, making sure that the points snap to sketch and not the grid, which in few instances turned out to be the case. Thanks for the tip on using include 3d geometry.