Broken Arc filter?

[Greg_J]

Hello,
I noticed this for awhile now but have never posted to ask this question.

I would make a Flowline toolpath and want to reduce the size of the program by adjusting my filter and as I  move the cut tolerance to a smaller value the program went from cutting a linear arc to stair steps, very odd. This use to work in the past if I needed to reduce the program size then I would adjust the arc filter but with Flowline it doesn't seem to be working correctly. No matter what I do to the arc filter I am unable to make it create arcs so there must be something with the solid face I selected that is trying to cut the radius with small linear moves.  I was able program the way I wanted with arcs using Surface Finish Parallel and get the smaller program size too but I use to use Flowline.

Any ideas?

Thanks,

Greg

 

[crazy^millman]

Old School Wireframe it and you will get nice arcs.

[pullo]

I was able to get that stairway to heaven effect ,  I am metric  so with a total tolerance of 0.025 mm and with Cut tol/LineArc tol split 50/50 all looked fine , but going

above 50   30/70 started to give me these steps 

Although that is a strange reaction to changing the tolerance split in favor of line/arc creation, the solution to your problem at hand is that just as I , you probably

had the default of Cut control set to Distance (in my case 2 mm ) . Once you turn that off , the point creation along is based on tolerance and then the arcs kick in.

So , Cut control set to distance creates in my case 41K of nci and if I post it , it's only lines, there are 456 lines of code and that is 11K of file size.

Now , TURN OFF Distance in Cut control , so your tolerance settings take over , arcs can be created and I end up with 11K of nci , The NC-file is only 2K in size , contains arcs

contains 101 lines of code (a Heidenhain arc takes up 2 lines of code)

 

 

[Greg_J]

Turning of that check box solved my problem, thanks.