Modeling Helical and Bevel Gear Teeth- NX 3

[smwdrum]

I am having trouble modeling gear teeth in NX. Spend many hours yesterday trying to get it to work. I have a .grip program but when I use the 3-D function it gives me hollow teeth that are not a solid body? you also cannot edge break the teeth then.

I also tried putting them in using the profile option of the grip program and then using a sweep function to cut it out. The issue is it does not keep a consistent tooth form across the face width. It gets narrow as it goes. Is there any easy way to do this for helical and bevel teeth? Geometry does not need to be 100% accurate just need to to visual look right for operation sketches sin a manufacturing process.

 

[Toost]

Can you upload an example ? -very difficult understanding the problem.
( upload the grip code ?)

For programs to create gears in NX, the best recommendation is Google...
The topic has been discussed quite a few times and there should be some more modern code than GRIP available somewhere.
( NX has code that creates gears , but that code is only available in China...)

Regards,
Tomas

 

[PSI-CAD]

Hi,
I have a NX1903 part file with full parametric right gear, if you want ?

Regards
Didier Psaltopoulos

http://www.psi-cad.fr

 

[smwdrum]

DidierPSICAD - Yes if you have a file to share that would be great!!

 

[PSI-CAD]

Hi,

Is NX1903 version OK for you ?

Regards
Didier Psaltopoulos

http://www.psi-cad.fr

 

[smwdrum]

What revision is that? I have NX9.0

 

[PSI-CAD]

Hi,

It seems that you are not aware about NX versions after NX12

NX series 1847, NX series 1872, NX series 1899 (1903,...)

Regards
Didier Psaltopoulos

http://www.psi-cad.fr

 

[smwdrum]

Yea sorry I do not know what those are. We are currently running 9.0 and switching to 12.0 in the near future.

 

[smwdrum]

What about NX "GC Toolkit" looks like that can create a simple gear for helical, bevel, and spur. Geometry might not be 100% but would be close enough for what I am trying to do.

 

[Toost]

If you can use the GC toolkit, go ahead.
older NX versions did not require a license for the GC toolkit, newer NX versions do. - I do not remember when this change happened.
I guess that you can find instructions to enable when searching the web.

Regards,
Tomas

 

[NutAce]

Isn't it so that the CGToolkit is only available for Asian Licenses?
Or did they change this?

Ronald van den Broek
Senior Application Engineer
Winterthur Gas & Diesel Ltd
NX9 / TC10.1.2

Building new PLM environment from Scratch using NX12 / TC11

 

[smwdrum]

I am not sure, I am going to send a note to my IT group and ask them to try and see of they can enable it. From watching some yyou tube clips it seems like the simplest way to do it.

 

[Toost]

I did a quick search on the GC toolkit
and , from this thread :

https://www.eng-tips.com/viewthread.cfm?qid=378962

PhoeNX (Mechanical)28 Jan 15 00:36
From NX9, you would need NX30624 (NX Greater China Toolkit) added to your license to be able to use it now.
You would have to get access to the source code for the libgctool.dll that is used, or write code from scratch.

( This means you have to have that license key to run it.)

and , from this thread :

https://www.eng-tips.com/viewthread.cfm?qid=362767

A guy called "Toost" wrote : ( )

Toost (Mechanical)22 Apr 14 12:06
1) Read Johns posts above.
2) set UGII_COUNTRY = PRC in the Windows control panel.

So, if you run a NX version older than NX9
then set the windws variable UGII_COUNTRY = PRC
and you should be on your way.

Regards,
Tomas

 

[PSI-CAD]

Hi,

Where is it possible to download libgctool.dll to be able able to test GM Toolkit with NX8.5 ?

TIA



Regards
Didier Psaltopoulos

http://www.psi-cad.fr

 

[mmauldin]

This is a parametric bevel gear that I think was created in NX7.5. Not sure about that, but the posting date suggests that it could be.

As the post says "Not perfect but fairly close approximation of bevel gears for NX."

https://grabcad.com/library/parametric-bevel-gear-set-for-nx-1

 

[Toost]

Didier, don't you have an old NX version to run ?
I have a NX7.5 install which doesn't start, i assume it's because of the computer is Win 10.
As i remember it, one did not need to install any addons, it was in the "complete" NX install.





Regards,
Tomas

 

[smwdrum]

So when I tried they "Toolkit" it tells me that I need NX China license. Do you know if this option comes with NX 12 or do you still need separate license? I have NX9.0 and doesn't work without a separate license. This seems way harder than it has to be to model some teeth.

 

[SDETERS]

what version of Nx file do you need for your gear?

 

[SDETERS]

Here is a quick simple spur gear for you to try, It was modeled in NX7.5. Go into the Tool expressions. Fill out the variables that start with "inputs"

Now this is important, if your Base Diameter of your gear is greater than your root Diameter the Gear will Fail. You will have to go into the Sketch before the Instanced Extrude and fix the sketch. Connect the gear teeth curves to the Root Diameter.

Hopes this helps a bit.

Thanks

 

[smwdrum]

I have NX9.0, will be upgrading to 12.0 at some point but don't know exactly when that will be yet.