help required extruding simple solid

[ekim]

I am using Mastercam 9.1 on WinNT4 SP6 old stuff I know.

 

I am trying to extrude a simple solid shape using curves initially taken from a dxf file. I have checked the boundary curve are all ok no breaks etc but am now getting an error message I dont understand. "Parasolid Kernal Interface Error. PK error code: 942 curve crosses edge"

 

What does this mean and how can I solve the problem?

[Fig sign]

Welcome on board .Ekim

Sent me a file at [email protected] and I `ll help you

[Kannon]

and of course... I would be willing to take a look.

 

Welcome to the forum!

[Zero]

its most likely some bad geometry in your chain....try redrawing your chain with arcs and lines and delete the old one, see if this helps..if you could upload your file to the ftp some of us could check it out for you

[88Matt]

Make sure and delete duplicates. Check for overlaps. Also try squashing to make sure it is all on the same plane. HTH

[terry5357]

sometimes DXF comes as polylines, always makes things a pain. When in doubt redraw with lines and arcs

[ekim]

Thanks for your help and offers of help everyone. Kannon solved the problem for me it was a small overlap that I had missed. Must get some new glasses!

[Kannon]

actually wasnt that easy to catch..

chook findovlp didnt catch it either..squashing geometry..creating a surface flat boundry..then recreating a edge curve...non helped me find it.

 

I switched the chaining tolerance and then it showed a red/green arrow and where the troubled spot was.

 

I got lucky...

[Thad]

quote:

---

I switched the chaining tolerance and then it showed a red/green arrow and where the troubled spot was.

---

Analyze chain will show this too. If there are entities on top of each other, you'll get a "reached a branch point" message and the red arrow will mark the area to zoom in on. This is my Plan B whenever a quick visual and find overlap don't work. Rarely do I have to go any farther since analyze chain is usually successful.

 

 

Thad

[Fig sign]

Kannon .

I use one old trick -make xform-offset contour and you `ll see what I mean

[Kannon]

edit...

 

[ 07-30-2007, 02:55 PM: Message edited by: Kannon ]

[Kannon]

alright...got both to work.....thanks for the tips both you.

[Thad]

[bigjohn]

Thanks guys for the tips. You never stop learning.

<<<<<<<<<<>>>>>>>>>>

John