splines

[JSAussem]

I just recently started to run X MR1. One function that I haven’t been able to find and I used to use quite often in 9.1 is the curve to arcs. I would use this to convert splines to an arc. I just brought in an iges file and I ended up with a bunch of nurb splines. When milling contour the mill jerks it way through all the little moves. Any suggestions on how to smooth it out would be appreciated.

[Cuda84]

It's under edit simplfy.

[toolall1]

i think break many will also work .

under edit...

filter the tool path will smooth it out

[Thad]

If you want the old Modify-Break-Splines to arcs, use Break Many Pieces.

 

If you want the old Modify-Convert to arcs, use Edit-Simplify.

 

The "V9 to X Function Mapping" .pdf located in the documentation folder is a good tool to find where things are at now. Some things are a little vague, but for the most part, it's pretty good.

 

Thad

 

[ 02-24-2006, 09:29 AM: Message edited by: Thad ]

[JSAussem]

Thanks David,

That was it.

[JSAussem]

Thanks one and all,

Ill will also take a look at the pdf.

Thad

 

John

[AllenT]

hi all

 

I did exactly what you said, edit simplify....I got the message " no splines were converted" it's been like that since V9, some of the splines can be converted, some can not, any ideals?

Thanks

[Yogesh K. Raman]

does increasing the tolerance help?

[Thad]

quote:

---

I did exactly what you said......any ideals?

---

Try my recommendation.

 

Thad

[AllenT]

Nope, I tried it, did not work out either, thanks anyway

Allen

[Thad]

It'll either work or you'll get a "spline does not reside in construction plane" type error. Did you get that error? If not, what exactly did you try?

 

Thad

[AllenT]

hi Thad

what I did was, Edit-Simplify, pick the spline (just a rectangle with 4 rad)tolerance .0002,the other option to " delete" old spline, hit Ok, nothing happended, the spline's still there

[AllenT]

My MR1 and SP2....:-) have to wait for service from In-House solution, don't know why I still have the error " error reading dialog" when I start MC

[Thad]

I listed 2 options above. So far, you've only tried one.

 

Edit-Simplify will do what the old "Modify-convert to arcs" used to do in V9. Every once in a while a circle or arc (hole) will come in as a spline. Edit-Simplify will convert it to an arc. This won't work in your case because you don't have an arc that is represented as a spline.

 

Break Many Pieces will do what the old "Modify-Break-Splines to arcs" used to do in V9. This is under the second trim function in MCX. This is used when you have a spline that you want to break into lines. This will work in your case. Instead of arcs in the corners, you'll get a bunch of tiny line segments. To avoid this, try the "new and improved" option 3.

 

A third option is to create a dummy contour toolpath, with no comp, around the spline that you want to convert. Backplot this toolpath and select "save as geometry" in the backplot config settings. Now you should get arcs in the corners. Adjust your tolerance to suit. Also, make sure you have "create arcs in XY plane" checked off. It slips my mind at the moment where that's at, but it's in the contour parameters.

 

Let me know if that works, Allen.

 

 

Thad

[Andy]

Allen,

Do exactly as Thad said:

Break/many pieces.

This is what you want NOT Edit simplify

[Andy]

Oops,

beat me too it Thad

[Thad]

How's it going, Andy?

 

Thad

[Andy]

Its late and I should go to bed. Working tooooo late lately every night but the forum is a break for me.

Hope all is well with you. At least you sound energetic.

Cheers.

[AllenT]

A big thank to Thad and Andy it works!:-) I never tried it before, I'll have more control in contour than in spline, It would be better if I can break the spline at a location of my choice, like intersection, midpoint,quadrant....but it workds better than I expected, once again, thank you very much

Allen

[Thad]

quote:

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It would be better if I can break the spline at a location of my choice, like intersection, midpoint,quadrant

---

Ahhh, but you can. Break is under the trim funtion in MCX. Select Edit-Trim/Break. On the right side of the ribbon bar you can select Break. Then on the left side of the ribbon bar, select "trim to point." Now select your entity. Select your break point.

 

Thad