3D PRINTING POLICY

There are three reasons why students may want to use our 3D printers:

  1. They must create and test a prototype in the Design Lab class.
  2. They choose to create a product for a different class assignment (History, Science, ELA, Math, etc.)
  3. They want to make a product for personal use.

Regardless of the reason, our goal is to provide all students with access to both the school 3D printers and filament!

Printing Student-Designed Models

At this time, there are no limits to how many models students can have 3D printed, as long as they design the models using software such as Tinkercad or Fusion 360. They must simply meet the 3D printing criteria and constraints listed below.

Printing Models Found Online

There are endless print-ready 3D models available online. Students are allowed to submit one 3D model for printing each cycle that they find online. The models must be school appropriate and not violate any copyright laws. It must also adhere to the 3D printing criteria and constraints listed below.

If you would like to print more 3D models or if the print time exceeds 4 hours, you may submit your file to be printed at the Shrewsbury Public Library. They have many filament colors to choose from and charge $0.15/gram.

3D Printing Criteria and Constraints

  1. Students must complete the Designing 3D Models in Tinkercad online course in order to send student-designed models to the 3D printers. This is to make sure students learn how to properly design a model that can be printed without errors.
  2. Print jobs cannot exceed 4 hours. (Students can use PrusaSlicer software in the 339 Lab to get a print time estimate.) This time limit is primarily to ensure all students have a chance to print their models, but it’s also because we do not want to print models after school when no one is there to monitor them.

    ** For Maker Mondays/Personal use: If a model needs to take more than 4 hours to print, the student can split it into multiple components, then add them as separate jobs.
  3. 3D models cannot exceed the build volume of our 3D printers: 250 mm x 210 mm x 210 mm (9.8″ x 8.3″ x 8.3″). The model should be MUCH smaller than this though. (A model that size would probably take 24 hours to print!)
  4. Please be mindful about the specific design criteria listed below:
  • Overhangs and bridging
  • Tolerance (especially when designing holes or parts that fit together)
  • Orientation of the model
  • Bed adhesion