topic Re: Sketch on curved plane in Fusion Design, Validate & Document Forum

Sketch on curved plane

DanielZhuk — Sat, 10 Jan 2026 18:35:41 GMT

Hi all!

I am aiming to make something similar to this: a sort of profile attached to a spiral for a snack dispenser.

It seems like an easy enough design. I managed to make the base shape following the shape of the spiral. However, I am having difficulty making an adjustable "push" profile (the V shape in the picture).

Currently I am sketching the V-shaped profile onto the 'walls' by using a 3D sketch, and the using a sweep surface (perhaps a loft would be better so that the shape does not angle) and then a cut-body. But I have the feeling that it can be done a lot easier and more parametrically.

Any tips on how to tackle this would be more than welcome!

Thank you,
Danny

Re: Sketch on curved plane

kacper.suchomski — Sat, 10 Jan 2026 18:35:13 GMT

You can thicken the surface of the spiral (join to another body) and trim it (viewed from the front it is a regular circle).

Re: Sketch on curved plane

DanielZhuk — Sat, 10 Jan 2026 18:43:35 GMT

Thanks Kacper! However, I think we're talking about different things.

This is the profile I'm sketching, seen as a sweep plane.
But I have the feeling it can be done easier and more precise, as I do not have that much control over 3D-sketches.

Re: Sketch on curved plane

TheCADWhisperer — Sat, 10 Jan 2026 20:43:46 GMT

@DanielZhuk wrote:
I managed to make the base shape following the shape of the spiral.

@DanielZhuk

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: Sketch on curved plane

DanielZhuk — Sun, 11 Jan 2026 01:10:49 GMT

Hi! Thank you for your help! The shape is a tricky one however, as the "V" should point in the direction of the main axis of the spiral (so 90 degrees and curved from how it is in your screenshot).

I ended up using an alternative software, as I found that the loft function in Fusion also made the walls curve too much for my liking, and I did not have the time left to figure out why that kept happening.

It's a nice challenge! I am determined to figure out how to solve this in Fusion as well. I'll attach the file a bit later this week and keep you posted!

Thank you for your help again.

Re: Sketch on curved plane

KristianLaholm — Sun, 11 Jan 2026 08:27:46 GMT

If the goal is to keep the V-profile aligned with the spiral axis, Loft and 3D sketches are likely overcomplicating it.
A cylindrical Emboss workflow fits that intent much better.