topic Anyone know how to change the direction of these U/V curves? in Fusion Design, Validate & Document Forum

Anyone know how to change the direction of these U/V curves?

FrodoLoggins — Mon, 06 Nov 2023 18:35:56 GMT

They don't all run in the same direction:

Re: Anyone know how to change the direction of these U/V curves?

TrippyLighting — Tue, 07 Nov 2023 17:06:03 GMT

Why would that be important in a fillet, or chamfer?

Generally in solid modeling we don't have any control of the direction of U and V. This applies generally in CAD applications, not just in Fusion 360. In fact, it is mostly only important to people who possess advanced surface modeling skills.

Re: Anyone know how to change the direction of these U/V curves?

FrodoLoggins — Wed, 08 Nov 2023 13:18:18 GMT

The Flow machining strategy calculates its toolpath direction based off the U/V curves. If a machining strategy is dependent on which direction the U/V curves flow it would probably be a good idea to have a way to change the U/V curve direction. Or at the very least have the ability to flip them so the U curves become V curves and vice versa.

Re: Anyone know how to change the direction of these U/V curves?

TrippyLighting — Wed, 08 Nov 2023 13:38:37 GMT

@FrodoLoggins wrote:

The Flow machining strategy calculates its toolpath direction based off the U/V curves. versa.

Aha!

I was not aware of that. I am not familiar with the CAM environment, so let me tag @seth.madore and see if he can provide some feedback.

Re: Anyone know how to change the direction of these U/V curves?

seth.madore — Wed, 08 Nov 2023 14:55:55 GMT

At present, there is no easy method of flipping a U for a V. One can sometimes solve for this by changing their modeling habits, substituting Sweep for Chamfer or vice versa.

We do have tickets open to bring back functionality to the new Flow toolpath which will add the U/V arrows like old Flow. No word yet on when those will make an appearance..

Re: Anyone know how to change the direction of these U/V curves?

matthewrjacobs — Wed, 08 Nov 2023 21:23:24 GMT

You can remodel that section with T-splines to get the UV curves to align better. There is an AutoDesk University Lecture that covers this, but I don't have a link to it.

I love the Flow Toolpath but this is a serious drawback when using it.

Re: Anyone know how to change the direction of these U/V curves?

matthewrjacobs — Wed, 08 Nov 2023 22:51:45 GMT

Found my link to the video. About 40minutes in he covers this.

https://www.autodesk.com/autodesk-university/class/Understanding-CAM-Programming-Fusion-360-2019#video