topic Re: Convert BRep Face to T-Spline issue in Fusion Support Forum

Convert BRep Face to T-Spline issue

AnnieBx — Sun, 17 Mar 2024 05:46:15 GMT

I have been using this feature for a long time, and it has been working perfectly.

After the last couple of updates I am getting very strange results when converting really simple BReps' to T-Splines. See attached screenshot. I have made a simple body using the slot function in model, straight up and down, nothing fancy.

When I try to convert the curved face from BRep to T-Spline, it inverts the curve of the BRep going the opposite way (Blue colour is the face that is there in the BRep and should turn into a T-Spline, however, as you can see the T-Spline surface goes the other way.

Any workarounds or hints?

Thank you

Re: Convert BRep Face to T-Spline issue

jeff_strater — Sun, 17 Mar 2024 15:29:06 GMT

I don't seem to have that problem. Can you share the model where you see this?

Re: Convert BRep Face to T-Spline issue

AnnieBx — Mon, 18 Mar 2024 03:31:40 GMT

Hi Jeff,

Procedure:

1) Draw Slot
2) Extrude Slot
3) Surface - Create Form
4) Convert BRep to T-Spline
5) Select Curved part of Extruded body.

See result in model:

https://a360.co/3Prfe0q

Re: Convert BRep Face to T-Spline issue

AnnieBx — Wed, 20 Mar 2024 03:22:44 GMT

Yes, that was what I have been seeing and expecting as well, for a long time. I have made a PDF to demonstrate step-by-step. Believe me, I have made many complex shapes using T-Splines in F360, and always been happy. I find any workaround or solution to this. Model is shared here: https://a360.co/3Prfe0q

Re: Convert BRep Face to T-Spline issue

AnnieBx — Wed, 20 Mar 2024 03:26:15 GMT

You are making a slot in a cube, which is not what I have been doing. I am making a slot to make a body shaped like the slot. As I said, I have been doing this many times to get a basic shape for T-Spline/Surface modelling.

Re: Convert BRep Face to T-Spline issue

jeff_strater — Sat, 23 Mar 2024 23:22:32 GMT

ahhhh, thanks for that clarification. Missed that. Yes, that is a problem. I created bug FUS-152528 for this issue. Thank you for reporting it