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Rapid Prototyping Lab

Ready-To-Print 3D Designs

You can search for pre-existing CAD on the internet to print.

  • Thingiverse: MakerBot's searchable design library community
  • 3D Warehouse: Sketchup's searchable design library 
  • Cubehero: Cubehero hosts your 3D printed and hardware projects to make it easier to work together with others

Design your own Model

If you wish to design your own CADs we recommend any of the following free software:

  • ​Tinkercad:  A browser-based 3D design platform, now part of Autodesk
  • ​OpenSCAD: free software for creating solid 3D CAD models. Useful for creating models of machine parts
  • ​SketchUpcomes in free or pro versions.


3D printing allows users to bring their visions to life by turning them into tangible three-dimensional objects. 3D printing takes a computer-aided design (CAD) file and creates a physical model layer by layer using selected material(s) (commonly using polymers such as PLA and ABS).

** 3D printing is free for all SJSU students, faculty and staff.


1. There is a maximum limit of 1 print per month per person.

2. Due to high demand, we limit the duration of each print to 6 hours maximum.

3. You must use your valid SJSU email to use this service.

*You may call us at (408) 808-2435 or email us at 
for additional information about printers, 
compatible files, and other technical questions.   

Print Profile (layer height)

The print profile determines the quality of the print. We choose between  

  • Extra Fine (0.06 mm)
  • Fine (0.1 mm)
  • Normal (0.15 mm)
  • Fast (0.2 mm). 

These values specify the height of each filament layer in your print. Prints made with thinner layers will create more detailed parts with a smoother surface. By default we go with 'Normal', however, if your print exceeds the booking time we will change the settings to 'Fast'. You may request for your print to be completed with the settings of 'Extra Fine' or 'Fine'These settings do increase the print time substantially (6 hour limitation still applies). 


Infill Density 

Fill density is a measure of how much material will be printed inside the outer shell of the object. The percentage can be modified to conserve material and speed up print times. We typically have the value set to 10%.

  • 10%
  • 20%
  • 30%


Note: Our print schedule is Monday thru Thursday 9:00 a.m. - 3:00 p.m.

1. All files must be submitted with proper dimensions (we only print at a 1:1 ration).

2. There is a maximum limit of 1 print per month per person.

3. We are currently limiting our booking slots to one per printer per day. Maximum print duration allowed is 6 hours. 

4. You must use a valid SJSU email to access this service.

Select an available date and time range by either clicking the, 'Schedule your print' tab. After selecting an open time slot you will be prompted to enter your namestudent/employee ID, and a valid SJSU email to complete the reservation. 

File Submission

1. Upload your file using this request formYour file(s) must be in a .STL format. 

*Make sure your browsers is signed into your SJSU account. The form is restricted to SJSU domains only. 

2. You will receive an email from when your part is ready for pickup!

* You are not required to be around for the printing process.

*You may email us at for additional information about printer filaments, compatible files, and other technical questions.

Helpful Tips for Fast Turnaround

  • We suggest downloading the free and easy to use Cura software to determine how long your file will take to produce prior to requesting time. This software is available for both Mac OS and Windows. Download it here.  
  • Double check to make sure you are submitting an .STL file, have all parts attached, and have selected the color. 
  • If you have any questions or are unsure about something, feel free to email us at


How to Use Cura to Check Print Time