NX File/Open JT loads wrong Geometry - "derived" part is not AUTOMATICALLY updated.

2021-10-06T23:27:31Z
NX for Design

Summary


Details

We receive Model Revision 2 but the file_jt.prt does not get updated.
Use Case in DMU Dept.:======================DAY#1 :- We receive the 3D Model Rev.1 in JT format from CAD Engineers.- let's say 123.jt representing a Block just for this simple example.- we analyze it, then we delete it.
DAY#2 :- We receive the same 3D Model Rev.2 in JT format from CAD Engineers.- let's say 123.jt representing a Cylinder just for this simple example.
- now we take a normal prt containing the original CAD prt of the block, not "derived" from any JT. This is the native part and we rename it to 123_jt.prt (by hoping that xxx_jt.prt is good enough for the Update)- and we copy it into Test directory, where also the Rev.1 123.jt is saved.- in NX12 we File/Open 123.jt and we expect to see a cylinder.- ISSUE : we see a Block, and NX has opened automatically 123_jt.prt. The NX Part has not been AUTOMATICALLY updated as we expected.- EXPECTATION : we expect to see the new 3D Model Rev.2 - The Cylinder


Solution

This is working as designed, because 123_jt.prt is not a real/correct "derived" part.Therefore the Workflow is not correct, and you also need a Customer Default
In order to follow the correct Workflow please use this one :1) DAY#1 : - start up NX12 - Menu/File/Utilities/Customer Defaults - Hit "Find Default" button - Search for "Automatically Update out-of-date JT Derived Parts" - check its checkbox - hit OK - File Exit- start up NX12- File/Open 123.jt in NX12 from Test directory- File/Save - (now the correct "derived" part is created and the associativity with 123.jt has been memorized in the 123_jt.prt, created right now inside Test dir.)
2) DAY#2 :- Delete the old 123.jt (Block) from Test directory.- download the new 123.jt (Cylinder) into the Test directory- File/Open 123.jt in NX12 from Test directory- now you see 3D Model Rev.2 - The "derived" part has been AUTOMATICALLY updated- As expected.
- Optionally use File/Save if you wish to maintain/save Model Rev.2 on hard disk.


Notes and References


Hardware/Software Configuration

Platform: INTEL
OS: windows
OS Version: 10_1809
Product: NX
Application: GATEWAY
Version: V12.0.2
Function: OPEN_JT

Ref: 001-8434947

KB Article ID# PL8016246

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