net surface X4

[Mark Reuszer]

Can someone explain the proper chain order for creating a net surface using 3 splines and a point. Every combination I try fails, out of order.

 

This image shows how I use to do it in version 9. What did they change, why doesn't this work anymore?

[Thad]

Coons surface all the way. 

[Mark Reuszer]

I thought they replaced the coons with the new net surface, but a little digging and I found it.

 

CoonsSurf C-Hook

CoonsSurf C-Hook
Use this C-Hook to create a surface from a grid of curves, called a Coons surface. The curves should intersect at corners to produce 4-sided patches. Each side of each patch is a separate curve that needs to be chained separately. 

Start the C-Hook by selecting Settings, Run user application, CoonsSurf.DLL.

Mastercam prompts you to enter the number of patches to use in the 'along' direction.

Enter the number of patches to use in the 'across' direction.

Mastercam displays the Chaining dialog box so that you can select the curves. Mastercam automatically calculates how many curves in each direction you need to select, based on the number of patches. Follow the prompts to select the "along" and "across" curves. 

Click OK when the chaining is completed. 

Mastercam displays a dialog box where you can select the blending method it will use to construct the surface. Select the blending method from the list.

Click Apply to preview the surface. 

Click OK to close the C-Hook, or choose the Select button to select a new set of curves for a new surface.

 
 

[Thad]

I believe net was supposed to replace coons, or at least be a new, hipper version of it...but as you can see, it was left in the software as a chook. I've had net fail when coons doesn't so I just go straight to coons every time.

[Pete Rimkus from CNC Software Inc.]

In Net Surface you don't need to pick the point. (Selection-wise its a lot more 21st-century than Coons)

I made a part here with just a line an arc and a spline that form a closed 'triangle'. All I had to do was selected the 3 of them.

[jlw™]

Pete, can you put up some pics?

[Pete Rimkus from CNC Software Inc.]

[Fred @ Slate Industries]

BTW The New Power surface

In 2019 is a one click deal