Troubleshooting NexaX

NexaX says my file is corrupted. What should I do?


NexaX will notify you if your .stl file has mesh errors as there is a chance it will not be able to slice it properly which will lead to a print failure. When you come across this, you have 3 options:

  • Adjust the export settings on your CAD or 3D modeling program and try again.
  • Slice the file anyway but inspect the individual slices using the preview box after it has saved. 
  • Repair the .stl file and then slice it.

The best option is likely to repair the .stl file. You can do this in Nexa X Pro's Edit menu. If using the Basic version you will need to resort to third party software. Some great, free solutions include: 

Why is NexaX slow?

NexaX has to run some complex calculations, especially when hollowing a part, generating support and creating the job file. Please make sure you meet at least the minimum recommended specs below. If you would like even better performance, you may need to upgrade well past these specs. 

  • RAM: 8 GB

    OS: Windows 10

    Graphics Card: NVIDIA GeForce GTX 1060 or AMD Radeon R9 Fury

    Free Disk Space: 30 GB

In some cases, computers with both integrated and dedicated graphics cards may default to using the integrated card for energy efficiency reasons. This will significantly slow down NexaX so it is best to configure your system to forcibly use the dedicate card for this program. For example, you can follow these steps for an NVIDIA card. 

  1. Right click on the desktop and select NVIDIA Control Panel

  2. Click on Manage 3D Settings

  3. Switch from Global Settings to Program Settings

  4. Click on Add next to the program select dropdown

  5. Select NexaX 2.0 from the list

  6. Select 'High-performance NVIDIA processor' from the second dropdown


License Won't Activate

NexaX uses Cryptlex Licensing, and users of Nexa X may need to ask their network administrator to whitelist the ports to the Cryptlex licensing server used to authenticate the license.  Please see this article for more information. If you still struggle to activate the license, submit a support ticket and include your license code so the support team can check the status of your license and available activations.  If you would like to deactivate one PC to allow activation on another, please include the license code and the network systemID in the request.

Cryptlex also has a certain allowable time offset that determines whether your license can be activated. You will have to have a synced time with the network to activate these licenses. Please follow these steps:

  1. Go to "Date & time" settings page of your PC.
  2. Underneath "Set time automatically" option, turn the option off and on again.
  3. Try syncing time if your clock is out of sync. This option will be available if your clock is not matching with the network time.



If you run into any further issues other than what is listed above, submit a ticket to our support team or reach out to Screen shots, logs, and detailed descriptions of any errors would be most helpful for diagnosis!


The logs that can be found in the following folder path: "C:\Users\<your username here>\.Nexa3D\".


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