How to change the MCS of the "Geometry" view
How to change the MCS of the "Geometry" view
(OP)
Hi, everyone,
Felt a bit confused about how to set the coordinates for "Geometry" view.
In the "Geometry" view, the origin of the MCS is on the top of the part.
In the "MCS_Mill", origin in on the bottom of the part.
I wonder if I can change the MCS to the bottom for the "Geometry" view.
Details are shown in the pics.
Thanks for helping


Felt a bit confused about how to set the coordinates for "Geometry" view.
In the "Geometry" view, the origin of the MCS is on the top of the part.
In the "MCS_Mill", origin in on the bottom of the part.
I wonder if I can change the MCS to the bottom for the "Geometry" view.
Details are shown in the pics.
Thanks for helping







RE: How to change the MCS of the "Geometry" view
Anthony Galante

Senior Support Engineer
NX3 to NX10 with almost every MR (21versions)
RE: How to change the MCS of the "Geometry" view
RE: How to change the MCS of the "Geometry" view
Anthony Galante

Senior Support Engineer
NX3 to NX10 with almost every MR (21versions)
RE: How to change the MCS of the "Geometry" view
If it is the absolute coordinate system, should it be labeled as X,Y,Z?
Wonder if that coordinate system (MCS of the "Geometry" view) will have effect on the manufacturing processes.
Thanks
RE: How to change the MCS of the "Geometry" view
It can be moved wherever you want it just like the WCS (Work Coordinate System). You CANNOT move the Absolute coordinates.
I appears to me that you need to have some training on the use of NX.. Have you reviewed the help docs?
John Joyce
N.C. Programming Supervisor
Barnes Aerospace, Windsor CT
NX7.5, NX9.0, NX10.0(Testing)
Vericut7.3.3
RE: How to change the MCS of the "Geometry" view
Do you mean that the "MCS" in the "Geometry" view is actually the "absolute coordinate system"?
But why it is labeled as "XM, YM, ZM", is the absolute one labeled as "X,Y,Z"?
I felt no one really directly answered my questions
Thanks for your patience, and your understanding
RE: How to change the MCS of the "Geometry" view
For a little experiment, create several MCS groups at different locations or orientations. Now create a simple milling operation and generate the path. Now drag it under each group, and the root node, and list it at each location. You will see different coordinates, even though the path has not been regenerated.
Mark Rief
NX CAM Customer Success
Siemens PLM Software
RE: How to change the MCS of the "Geometry" view
I need to manually set an offset for it in order to avoid the errors.
If I set the MCS of the workpiece on the bottom, and the MCS of the "Geometry" is on the top, there is an error. (I need to set an offset to correct it.)
If both MCS of the worpiece and "Geometry" are on the top, there is no error, and consequence is as expected.
Thanks a lot. I will try in your way.
Wonder if it is the problem of the simulation software that I am using.
RE: How to change the MCS of the "Geometry" view
Probably is, but why it is labeled the same as "MCS". The "X,Y,Z" is called the "datum coordinate system", and I can move it... so it is not the absolute coordinate system......
Just wonder if there is any way to change it
I tried to find in the help file, only found how to set it up. nothing specific related to the Geometry view "XM,YM,ZM"...
Thanks
http://files.engineering.com/getfile.aspx?folder=6...
RE: How to change the MCS of the "Geometry" view
There is one absolute CSYS. It cannot be moved. It is not displayed. It can be used as a reference (e.g. you can define a datum CSYS at absolute).
Datum CSYS and CSYS are entities that can be saved and referenced.
XC YC ZC is the WCS = Work Coordinate System, used for user input in NX. There is only one WCS at any time. Move it anywhere, or select a saved CSYS. It is not used for any CAM output.
XM YM ZM is the MCS = Machinine Coordinate System, used for CAM output. You can define as many as you want. The one used for ouput is based on where the operation is in the Geometry View of the Operation Navigator.
MCS can have options for its useage. For example you may have one main MCS for the origin, and several others for fixture offsets.
Mark Rief
NX CAM Customer Success
Siemens PLM Software
RE: How to change the MCS of the "Geometry" view
No matter how I set MCS, WCS, reference, it didn't matter. Although the outputs are different...
Weird results and thanks for helping
RE: How to change the MCS of the "Geometry" view
I understand exactly what you're talking about and I agree the behavior is a bit unexpected. At least in Program view. It goes back to absolute but that's really not where your mcs is set. If you select an existing operation you will see that it is set where you created the mcs and if you create new operations with that mcs they will display properly.
I understand what Mark is saying but I still feel that behavior is somewhat unexpected since the mcs is "specified" but it can display differently. That seems inconsistent to me but oh well.
NX9
Migrating to 10 when 10.2 is released.