Hollow Models

Some massing and site models do not require any strength and are merely formal representations. If these meet certain requirements, they can easily be printed hollow

0.0 When to Use These Settings

For models which don't require any strength, settings can be used to reduce the print time and material usage. This is helpful if print time is excessive or if a very large volume of objects need to be processed.

You should consider using the Foam Cutters in the Forbo Model Making Space before proceeding. This is probably the quickest and most cost-effective method for creating massing models.

Figure 0.0 - This massing model is perfect for these hollow settings

0.1 Design Requirements

These objects need to have a singular roof line in order to print successfully. These settings are not appropriate for objects with sloping or uneven roofs, nor are they appropriate for objects with multiple or varying roof lines.

Figure 0.1 - These objects are NOT appropriate for these settings. Roofs are variable heights and sloping.

1.0 Settings Overview

The following settings will effectively print the shells and floors of designed parts. As a result, students will need to flip each object in Makerbot print, placing the "roof" of each part facing down on the print bed. You can download them here.

1.1 Limitations

  • The following parts are quite fragile, so they cannot take any weight

  • The parts will have a rough roof finish, as the model's roofs will need to be removed from the raft

Figure 1.1 - Roofs are placed on the Print Bed

1.2 Default Settings


Recommended Setting

Print Mode


Infill Density


Roof Solid Thickness *

0 mm

Roof Surface Thickness

0 mm

Floor Thickness **

0.8 mm

Number of Shells ***


Layer Height (Shell)

0.3 mm

Layer Height (Infill)

0.3 mm

* This refers to the original model's base after flipping the model upside-down. ** 1.2 mm recommended if the student intends to sand the part. *** 3 Shells are recommended if the student intends to sand the part.

Downloadable Print Settings

Download the print mode using the below link. Import the mode in Makerbot Print by going to:

Settings > Custom Settings > Import Print Mode