Trivest CAM - Instructions for Use with exocad design settings.

Your complete digital workflow for refractory dies starts here.  

TriVest Milling 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 2 connectors below the prep in the upper 1/3 of the die. 
3. Minimize differences by adjusting the axis alignment if necessary
4. You can mill Trivest CAM ¨wet¨ or ¨dry¨ with a 1-1 ratio (there is no shrinkage factor).
5. Use your same diamond coated milling burrs that you use with Zirconia.  
6. For the "feed-speed" setting, you may want to choose a "soft" or "slow" setting.  
7. Use your same milling strategy as you do with Zirconia. You can use PMMA, Wax or Composite strategy as an alternative. 
8. 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. 
9. If the TriVest dies have too much friction, to reduce the friction of the milled die, you can smooth the surface with a goat hair brush / cotton buff at 2,000 – 2,500 rpm.friction

TriVest Milling & Printing "fit check" STL files to determine your desired settings

1. With a variety of Milling Machines, Printers and Resins, it is best that you use the attached STL files to establish your best fit test before you get started with your first case.  
2. The below STL file contains the following:
   • Print the Test Cube with your printer and desired settings appropriate for your model resin.
   • Choose the appropriate TriVest CAM test die.  Each of them have a value on top of the die that represents the "Shaft Gap" Space between the TriVest CAM Die and the model that is holding the die. The value on top of the die represents the space between the TriVest CAM die and the model that is holding it.  
     • The "0,1" die means there is 0.1mm of space between the die and the model in the shaft.
     • The "0,02" die means there is 0.02mm of space between the die and the model in the shaft. 

TriVest CAM tips for Firing Porcelain

1. You don´t need to do a degas firing; we did it for you.
2. The recommended CTE for your porcelain layering is between 9-14
3. 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!
4. Soak the die for a few seconds until no more bubbles rise. Then start with a very thin wash bake.  Important! Always make sure that your wash bake shows a smooth, closed surface without cracks. If in doubt, it is better to do the basic firing twice. 
5. Always layer and fire in small portions to avoid cracks. 
   
6. We recommend 2-3 thin firings
   
7. To detach the veneer from the die, sandblast with 50um glass beads at maximum 2 bar. 

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? No, we do not recommend DLC tools, CVD is much better.

• 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. 

V1.7 - Last updated: October 20th, 2025