Cancel
Showing results for 
Search instead for 
Did you mean: 

Lower Limit Plane

Siemens Legend Siemens Legend
Siemens Legend

Hello all,

I'd like to get some feedback on your use of Lower Limit Plane which is in the Cutting Parameters of planar operations such as Floor Wall, Cavity Mill and Planar Mill. If you use it regularly in your workflow, which of the three actions parameters do you normally choose? What do you normally use the function for, machine limits, fixture protection, or something else?

5 REPLIES

Re: Lower Limit Plane

PLM World Member Valued Contributor PLM World Member Valued Contributor
PLM World Member Valued Contributor

I've never used it.  I guess I don't really know what it does.  I would be intersted in knowing more about it though.

Jeff Sauers, Lead CNC Programmer, Oberg Industries

Production: NX 10.0.3.5, Vericut 8.0


Re: Lower Limit Plane

Legend
Legend
I also have never had a need for it. My floor is where the path stops anyway. I tried using it once and it prevents the path from dropping below the plane. Almost like a secondary floor. It became one of those options I learned to look through like it isn't there.
Glenn Balon
Production: NX 12.0.1.7 MP1 Primarily CAM

Re: Lower Limit Plane

Gears Legend Gears Legend
Gears Legend

In my 22 years using UG/NX, I've used it about 10 to 15 times and only in planar mill. Last used is a couple of years ago.
It can be a good option in very specific cases, but trough out the NX versions there came better options to achive what lower limit plane does.
Usually the reason to use it was, Tool length limit or part protection (using the planar mill, multiple depth passes, landing on a inclined floor)

 

lowerlimit1.png

 

Patrick Delisse
KMWE - DutchAero
NX 12.0, TC 11.2, CAMPOST V22, Vericut 8.1, TDM 4.8
C#, VB, .NET

Re: Lower Limit Plane

Legend
Legend
Once Z_level_profile came along it almost eliminated the need for this. I did not know about using it on a tapered floor though. Good to know.
Glenn Balon
Production: NX 12.0.1.7 MP1 Primarily CAM

Re: Lower Limit Plane

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

The lower limit plane can be specified inside of an MCS group to be inherited by all contained operations.

If I remember correctly only the level-based operation types support it, contour operations don't support it, but that would be great.

The only use-case I would have would be to have a general limit for machining from both sides.

Stefan Pendl, Systemmanager CAx, HAIDLMAIR GmbH
Production: NX10.0.3, VERICUT 8.1, FBM, MRL 3.1.7 | TcUA 10.1 MP7 Patch 0 (10.1.7.0) | TcVis 11.4
Development: C (ITK), .NET, Tcl/Tk Testing: NX12.0 | AWC 3.4 Preparing: NX12.0

Employees of the customers, together we are strong Smiley Wink
How to Get the Most from Your Signature in the Community
NX Customization - Best Practice Guide

Learn online





Solution Information