Application Guide

  • Applications

  • Software

  • Resin

Dental Model

Application Guide for Printing Vertical Orientation

Application: Model
Subtype: Vertical
Resin: QuraMODEL 2.0
Software: Alpha 3D

Dental Model Orientations

Dental models may be printed a number of different ways:

A. Horizontal: Accurate, requires the least print preparation time, and prints the fastest for individual prints, but takes up the most build platform space

B. Angled (10-15°): Highest possible accuracy and smoothness, but requires the most print preparation and support cutting time

C. Vertical: Fastest printing method for mass production, but slowest for individual prints

When should I print vertically?

The vertical orientation is best used for mass production of models, such as when making models that will be thermoformed for aligners. The models can be hollow or solid.

When should I use a different orientation?

Do not use the vertical orientation when printing models that will be attached to articulator interfaces. Vertical printing is not ideal for prints that are used for die fitting or margin lines for crowns. When printing maxillary models vertically, ensure that the model does not include any material in the palate region.

1. Print Analysis

A. Critical Areas – Do Not Support

  • A- The teeth, any die holes, and the immediate gingival areas are the most important parts of the print, and all print orientations try to avoid putting supports on any of those locations. If supports on those areas are necessary due to minimum points, then the supports should be small, and may need some sanding afterwards.

B. Intended Support Area

  • B1- In the vertical print orientation, the back of the model, including the back side of the final molars, will have supports.
  • B2- If necessary, supports may be placed on the underside of the model to account for any local minimum points.

2. Orientation

A. Angle the print so that the back of the model is on the platform, but the front of the model is raised.

  • In Alpha 3D, select your part and go to Orientation tab. Use the indicators on the model to turn it to your desired angle.
  • Angle the part so that the model has no local minimum points on the teeth surfaces.
  • Angle : 80-85 °

B. Raise the part off the platform.

  • In Alpha 3D, you raise a part along with setting up its supports. Go to the Supports tab, and set the height in the parameters.
  • Support Height: 1.5 – 2.0 mm

3. Supports

When supporting this print, Ackuretta recommends doing the following:

  • A. Set up the Base Support parameters shown below.
  • B. Go to Manual Support, and use the slice slider to find the lowest points of the model. Add supports to those points.
  • C. Add further supports on the bottom of the model as shown in Base Supports.
  • D. Change your support settings to the Fill Support settings shown below.
  • E. Add supports to any local minimum points on the model, including in the middle section.
  • F. Add more supports to the backs of the last molars and to any areas where there are large overhangs, as shown in Fill Supports.

Base Supports

  • Point Size: 2.0 – 2.6 mm
  • Elbow Size: 2.3 – 3.0 mm
  • Bottom Size: 2.6 – 3.5
  • Support Density: 76%
  • Support Height: 1.5 – 2.0 mm

Note

The size may cause some supports to stick through the bottom of the build platform, and will appear blue. This is not a problem. Your print will still print normally.

Fill Supports

  • Point Size: 0.6- 1.0 mm
  • Elbow Size: 1.2 – 1.5 mm
  • Bottom Size: 1.6 – 2.2
  • Support Density: 80%
  • Support Height: 1.5 – 2.0 mm

4. Base

Ackuretta recommends adding a base to almost all supported prints. Adding a base allows the print to stick to the build platform securely, and it makes the print easier to remove during post processing.

  • If you use the General support setting, Alpha 3D automatically adds a small base to every support. This small base is sufficient for most prints.
  • Additionally, you can add a base around the entire print using the Base Thickness setting. This may make it easier to remove the print from the build platform.

Warning

A thicker base does not improve print performance. A base of 0.400 mm or thicker may even make a print less likely to succeed.

5. Print

Arrange all of the models that you want to print, and then go to the Print tab.

  • Select your Layer Thickness. Ackuretta recommends 100 microns.
  • Give your print a Job Name.
  • Click Save.

On your printer, make sure that your settings match what you need for your resin.

Diplo / Ackuray Print Settings

  • Buffer Layers: 5 layers
  • First Layer Curing: ×8

FreeShape 120 Settings

  • Burn-In Layers: 4 layers
  • Burn-In Layer Curing Time: ×3 curing time
  • Z-Axis Peel Speed: 950

6. Finishing

After printing, clean, dry, and cut your print supports.

  • Cleaning Alcohol: Ethyl alcohol (95%) or isopropyl alcohol (99%)
  • Ultrasonic Cleaner or Soak Time: 2 minutes
  • Suggested UV Oven: Ackuretta UV Oven
  • Suggested UV Oven Time: 2 minutes on the bottom side, flip, and then 4 minutes on the teeth side.

Tip

With the Ackuretta UV Oven, hold the start button to use flash curing instead of continuous curing. Flash curing will reduce the resin distortion.