Twisted Loft With Shape Shifting?

[phlyx]

I have an odd situation and I cannot seem to find how to do this.  I have a cube and a straight vertical slot sketched on one surface, and a straight plus curved slot on another parallel surface.  I want to loft from one sketch to the other and as you can see, both are 0.125" wide.  So I want the loft to remain 0.125" wide but twist and transition between the two shapes.

If I do a basic loft it morphs between the two shapes and as you can see in this section view, it does not hold the 0.125" width between the two.

I can do the twist with the coil command but I cannot morph between two shapes.  I drew 3D sketch lines between the points I want to project from and to, but I do not see a way to follow them.  Hopefully someone will just chime in and say use the ??????? command!  😁   Part could be recreated quick but attaching it to the post.

[CCarreiras]

Hi!

Disable "Automatic Mapping" in the "Transitions" tab, and set the transitions manually.

Tip: you can add or delete transitions.

It would help if you add one (or more) intermediate profiles, or create some guide lines.

[CCarreiras · Accepted solution]

Here's how to do it:

[phlyx]

Thanks!  Had not used the transition feature of loft.  That worked!!!  😁👍

[SBix26]

Here's another solution: loft a surface between centerlines, then thicken/cut and add rounds.

The attached file is Inventor 2026 format.

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Sam B

Inventor Pro 2027 RTM | Windows 11 Home 25H2