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Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or off

Valued Contributor
Valued Contributor

Hi i want to machine corner radius with a corner radius tool as shown in the screen shot marked with red colour. I know the proper way for such type of machining is machining with the Ball nose cutter but here i want to machine it  with corner radius cutter for time saving purpose.

 

For said purpose i must need to drive the cutter along the curve.

In MASTERCAM the option for driving the cutter along the curve exist but in NX CAM i dont know where the option is.

Is it possilbe to drive the cutter along a simple 2D or 3D  curve or contour by selecting only curves or contours not surfaces? 

For illustration pupose i have attached my .prt file and screenshots here.

Master Cam 1.JPG

 

Curve and Face.JPGMaster cam2.JPGOnly Curve.JPG

 

 

 

6 REPLIES

Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

You can use a "fake" tool (e.g. use an end mill) in FASC (fixed axis surface contouring) to cut the part, but NX won't properly show the material removal. 

If you used a step drill (holemaking) you can define a bunch of small tapered sections to approximate the radius being cut, but that may be a bit of a PITA, depending on how closely you want to do it.

 

You can define the correct tool as a "mill user-defined", but as the only operation type that allows that tool is "mill-planar profile" you can't cut a 3D contour.

 

 

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


Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Genius
Genius

Sorry, Can't open NX12.

 

There is a way to make a planner profile tool move in a 3X motion. Requires a little slide of hand.

You program with a generic endmill per Ken's instructions.

Then you export the tool path... so you can import it into a planner toolpath done with your User defined tool.

Now the user defined tool does the 3x toolpath. I've seen it, it's possible.

 

@Michael_Mannino is the expert on this one...

 

 

{Paul Schneider}, {CNC Programmer}, {DRT-Rochester}


Production: {NX11.0.2,MP5, NX12.0.1, MP2}

Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Legend
Legend

Use an endmill to define your tool diameter and then use tool assembly to get the correct 3d verification of material removal

 

Here is a tutortial that shows how

https://ncmatic.com/technical-tuesday/creating-3d-solid-tool-nx-part-1/

https://ncmatic.com/technical-tuesday/3d-solid-tool-nx-easy-way-part-2/#more-575


Dennis Rathi
Creations Unlimited

Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Siemens Legend Siemens Legend
Siemens Legend

If you are looking for an operation that simply follows the curve while in a fixed axis position then use  Profile 3D from the mill_contour template. If you want to follow a curve on a plane then use Planar Profile from the mill_planar template. In this case you can create and use a MILL_USER_DEFINED tool that has an inward radius like a router bit.

 

If you need the axis to follow the shape of the top contoured faces of the part then you will need to use a Variable Contour operation with a MILL tool as indicated by Ken_A.

Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Siemens Legend Siemens Legend
Siemens Legend

I have attached a zip file that contains instructions on how to substitute tool path in an operation with a sample file, and also your file with tool path.

ScreenHunter_08 Apr. 03 10.56.gif

Re: Need Help! Drive the cutter along a simple 2D or 3D curve or contour with compensation on or of

Genius
Genius

Yes... That's it. Thanks @Michael_Mannino

 

Paul S.

 

Capture.JPG

{Paul Schneider}, {CNC Programmer}, {DRT-Rochester}


Production: {NX11.0.2,MP5, NX12.0.1, MP2}

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