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Suspicious value for tolerance setting

Solution Partner Pioneer Solution Partner Pioneer
Solution Partner Pioneer

I have input different value for program but the value is very much different. What is the cause of this value?


0.01 - The R is near 10000 which cause the machine to be error.

0.001 - the max R is around 1000

0.02 - The R value is not even 100


Re: Suspicious value for tolerance setting

Gears Phenom Gears Phenom
Gears Phenom

In my opinion,

you just found different R and not in the same place.

I see no problem in outputing  R1000., R10000. etc... diferent tolerances - one time it see arc and with other tolerances it doesnt.

Different tolerance in operation  can caused different paths. Normal.


1*Just check the R address if there is maximum/minimum and it is set like you want.

I suggest keep it "open" for biggest number.



2*Check also format the R is using.


3*If you machine dont accept such big values -there is minimum and maximum R value that can be generated.

Set here the maximum R your machine accept.



4*Also check this value in postprocesor:



You have to have these settings on your mind and mix it together well.


If there is no bug, I believe Ive mentioned all what you can adjust for your R output.

Smiley Happy



#♫ PB, 5ax, itnc, nx, vericut ♫ #

Re: Suspicious value for tolerance setting

Keep in mind that very small minimum radius values and very large maximum radius values can cause errors because they can result in very small interpolations which the machine is not capable of.  Also, if your part model has some issues, this can increase the likelyhood of arc errors at the machine. 


At other companies I have seen posts configured to be more tolerant of machine behavior and bad geometry.  They minimum radius set to .010" and max set to 500." which eliminated all of their arc problems.  The settings seem drastic to me but it works for them.  

NX 12.0.2

Re: Suspicious value for tolerance setting

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

Note in Step "3*", the dialog to set the machine's min/max radius is (for Post Builder):

Program & Tool path -> Motion -> Circular move

Ken Akerboom Sr CAx Systems Engr, Moog, Inc.
Production: NX10.0.3.5 MP16/TC11.2
I'd rather be e-steamed than e-diseaseled

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