RHINO SPLINE HELP PLEASE!!!!!!!

[jerms]

Hello,

I am looking for some answers. I work for a lrg. boat company. The engineers use Rhino. I have had some major issues with the splines, when i regen. the system locks up or takes 10-15 minutes to compute. I cannot back plot either. Does any one else have the same results? Do i have the system config set wrong. Every thing i have read about rhino is that it works great with MCX. Is there anything i should know?

 

thanks for your help

 

[email protected]

[kunfuzed]

Sorry, I don't have any ideas. But if you can post a problem file to the ftp site and explain what your trying to do when it when the problem occurs, someone might be able to help.

[Jimmy Wakeford from Barefoot CNC]

jerms

It sounds like the splines are "heavy". In Rhino you can rebuild splines to a tolerance (edit-rebuild, then pick problem splines). If I use a digitizer in drag mode it will create a spline with thousands of control points, then after rebuilding it it may have 25 points and still within .001 of original curve.

 

Analyze the problem spline in mastercam and see how many control points it has. Mastercam also has a tool for simplifing splines.

[Colin Gilchrist]

Run the Chook, RMNodes. This will simplify your splines with a tolerance you specify.

[jerms]

thanks guys. i have tried several different scenarios. i found that if i import the file using the "default" iges translator it helps. i converted the splines to lines, put a contour to it then saved the back plot geo, then offset the contour. with that i had the arcs and lines i was looking for. i also had an issue with the post, it would not create the g2/g3 code so after 3 hrs of compring posts i got the result that i needed. it was imperative that i had the arcs because the splines would slow down so much that the material that i'm cutting would catch fire. sweet!

 

well thanks you all for your support

jerms

[MultiAxGod]

quote:

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it was imperative that i had the arcs because the splines would slow down so much that the material that i'm cutting would catch fire.

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Does your machine have high speed processing?