Trivest CAM - Instructions for Use with exocad design settings.

Your complete digital workflow for refractory dies starts here.  

TriVest Workflow Steps After you finish your design:

1. Design the digital die model without undercut extension of the prep margin for 3D printing. (No Die Ditching under Margin)
2. Place your dies in your CAM software and create at least 3 connectors per die.
3. You can mill Trivest CAM ¨wet¨ or ¨dry¨ with a 1-1 ratio (there is no shrinkage factor).
4. Use your same diamond coated milling burrs that you use with Zirconia.  
5. For the "feed-speed" setting, you may want to choose a "soft" or "slow" setting.  
6. Use your same milling strategy as you do with Zirconia. You can use PMMA, Wax or Composite strategy as an alternative. 
7. Once the milling process is done, cut the dies, smooth the connectors, and place the dies in the model.  If your die doesn't fully seat, you may need to adjust the anti rotation rim. 
8. If the TriVest dies have too much friction, you can use a cotton wheel at 10,000 ~ 12,000 RPM to smoothen the surface of the dies to decrease the retention and achieve a smoother fit. 
9. You don´t need to do a degas firing; we did it for you.
10. The recommended CTE for your porcelain layering is between 9-14
11. Start your very thin foundation firing and continue with thin layers of ceramic - usual procedure with refractory dies to create your awesome veneer.  Do not go to solid in one bake to avoid cracks!
12. To detach the veneer from the die, sandblast with glass beads.

FAQ

1. What if my CAM software does not allow a 0% enlargement with Zirconia milling strategy?

• Some CAM software does not allow zirconia milling strategy to be set to 0% enlargement factor.  If this happens, you may use another 1-1 milling strategy with the same "speed and feed" rate as zirconia and the same diamond coated tools as zirconia.  Some customers have used a PMMA, Composite or Wax milling strategy with new CVD diamond coated burs and found success. 

2. Can I use DLC (Diamond Like Carbon) tools instead of CVD (Chemical Vapor Deposition) Diamond Tools?

• If you use DLC tools, they will wear out quickly.  It is recommended to use high quality CVD Diamond tools for use with TriVest CAM dies. 

V1.5 - Last updated: June 25th, 2025