Answers for industry. Siemens PLM Software NX CAM 9.0.2: Automatic Follow Periphery Pattern Direction Optimizing follow periphery cut patterns for maximum efficiency.
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Answers for industry.
Siemens PLM Software
NX CAM 9.0.2:
Automatic Follow Periphery
Pattern Direction Optimizing follow periphery cut patterns for maximum efficiency.
2
About NX CAM
NXTM CAM software has helped many of the world’s leading manufacturers and job shops produce better
parts faster. You can also achieve similar benefits by making use of the unique advantages NX CAM
offers.
This is one of many hands-on demonstrations designed to introduce you to the powerful capabilities in
NX CAM 9.0.2. In order to run this demonstration, you will need access to NX CAM 9.0.2.
Visit the NX Manufacturing Forum to learn more, ask questions, and share comments about NX CAM.
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Hands-on Demonstration: Automatic Follow Periphery Pattern Direction
The new Automatic pattern direction alternates between Inward and Outward per cut level and cut region
condition for Follow Periphery cut patterns in Cavity Mill operations. It utilizes open sides and predrilled
holes whenever possible to access the cut levels and avoid ramping when possible.
Do you have a question?
Post your questions or comments at the bottom of this Tech Tip article in the NX Manufacturing Forum.
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Prerequisites:
1. You will need access to NX CAM 9.0.2 in order to run this demonstration.
2. If you haven’t done so already, download and unzip Automatic Follow Periphery Pattern
Direction.7z. You will find the .7z file attached directly to this Tech Tip article in the NX
Manufacturing Forum.
Demo:
1. Open automatic_pattern_direction.prt in NX.
You will begin by observing the behavior of the existing Inward and Outward pattern directions. Then
you will observe the behavior of the new Automatic pattern direction.
Inward Pattern Direction
2. In the Program Order View of the Operation Navigator, double-click CAVITY_MILL to edit the
operation.
3. Click Cutting Parameters.
Notice that Pattern Direction is currently set to Inward.
4. Click Cancel.
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5. Click Verify.
6. Select the 3D Dynamic tab.
7. Select Current Level from the Tool Path list.
8. Slow the Animation Speed down to 1.
9. Click Play.
The problem with using Inward for this operation is that it produces very long slotting motions in
the second and third levels.
10. Click OK to complete the tool path visualization
Outward Pattern Direction
11. Click Cutting Parameters.
12. Select Outward from the Pattern Direction list.
13. Click OK.
14. Click Generate.
15. Click Verify.
16. Click Play.
The problem with using Outward for this operation is that it ramps in on all levels.
17. Click OK to complete the tool path visualization.
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Automatic Pattern Direction
You will see how the new Automatic pattern direction optimizes the tool path at each cut level,
eliminating ramping whenever possible.
18. Click Cutting Parameters.
19. Select Automatic from the Pattern Direction list.
20. Click OK.
21. Click Generate.
22. Click Verify.
23. Click Display Options.
24. Select the Pause at Each Level check box.
25. Click OK.
26. Click Play to cut the first level.
The first cut level performs an inward cut from the open side on the first level with no slotting or
ramping.
27. Click Play to cut the second level.
The second cut level slots from the open side to the center and then cuts outward.
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28. Click Play to cut the third level.
On the closed pocket the tool is forced to ramp in.
29. Click OK to complete the tool path visualization.
30. Click OK to complete the operation.
The Automatic cut pattern utilizes predrilled holes to access the cut levels and avoid ramping
whenever possible.
31. Double-click CAVITY_MILL_1 to edit the operation.
32. Click Cutting Parameters.
33. Select Automatic from the Pattern Direction list.
34. Click OK.
35. Click Generate.
36. Click Verify.
37. Click Display Options.
38. Select the Pause at Each Level check box.
39. Click OK.
40. Click Play to cut the first level.
41. Click Play to cut the second level.
The second cut level plunges into the hole and cuts outward since it is closer than cutting from
the open side.
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42. Click Play to cut the third level.
The third cut level plunges into the hole and cuts outward to avoid ramping.
43. Click OK to complete the tool path visualization.
44. Click OK to complete the operation.
45. Compare the behavior of Automatic to the Inward and Outward pattern directions which ignore
the hole completely.
Inward Outward
Level 2
Slotting from open side
Ramping
Level 3
Ramping
Ramping
Another enhancement is that Inward and Outward pattern directions no longer generate
unnecessary cleanup passes around predrilled holes
46. Double-click CAVITY_MILL_INWARD to edit the operation.
47. Click Replay.
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Previously, a wall cleanup pass is created around both the boss (1) and the predrilled hole (2).
48. Click Generate.
Now, the cleanup pass is no longer generated around the hole.
49. Click Cancel to dismiss the operation dialog box.
50. Repeat these steps for CAVITY_MILL_OUTWARD to see that unnecessary cleanup passes are
no longer generated for predrilled holes when an Outward pattern direction is used.
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Lastly, you will see how Automatic changes the cut strategy based on the shape of the cut region.
Recall how the second cut level in the CAVITY_MILL operation generated a long slot from the open
side to the center before cutting outward when using Automatic.
Automatic will ramp when the slotting length is greater than 10 times the tool diameter.
51. In the Border Bar, select MenuInsertSynchronous ModelingMove Face.
52. Select the face on the end of the part and drag it or type in a distance greater than 100 mm. This
distance is greater than 10 times the tool diameter.
53. Click OK in the Move Face dialog box.
54. Double-click CAVITY_MILL to edit the operation.
55. Click Cutting Parameters.
56. Select Automatic from the Pattern Direction list.
57. Click OK.
58. Click Generate.
59. Click Verify.
60. Click Display Options.
61. Select the Pause at Each Level check box.
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62. Click OK.
63. Click Play to cut the first level.
64. Click Play to cut the second level.
The second cut level now ramps because the slotting length is greater than 10 times the tool
diameter.
65. Click Play to cut the third level.
66. Click OK to complete the tool path visualization.
67. Click OK to complete the operation.
68. Close the part without saving.
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About Siemens PLM Software
Siemens PLM Software, a business unit of the
Siemens Industry Automation Division, is a leading global
provider of product lifecycle management (PLM) software
and services with seven million licensed seats and more than
71,000 customers worldwide. Headquartered in Plano,
Texas, Siemens PLM Software works collaboratively with
companies to deliver open solutions that help them turn
more ideas into successful products. For more information
on Siemens PLM Software products and services, visit
www.siemens.com/plm.
© 2013 Siemens Product Lifecycle Management
Software Inc. Siemens and the Siemens logo are registered
trademarks of Siemens AG. D-Cubed, Femap, Geolus,
GO PLM, I-deas, Insight, JT, NX, Parasolid, Solid Edge,
Teamcenter, Tecnomatix and Velocity Series are trademarks
or registered trademarks of Siemens Product Lifecycle
Management Software Inc. or its subsidiaries in the United
States and in other countries. All other logos, trademarks,
registered trademarks or service marks used herein are the
property of their respective holders.
8/13
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