Prints (0)


This summer, Formlabs hosted The Digital Factory, a conference about digital manufacturing, at the MIT Media Lab. We expected hundreds of guests, and a mass-produced 3D printed part seemed like an appropriate souvenir.

Since the digital factory of the future promises mass customization at no extra cost, we decided to parametrically generate a few hundred design options so each attendee could leave with a one-of-a-kind pen. The pens were designed with an eye toward a future where everyday objects are customized for individual users.

We've included 8 of our favorite parametrically generated designs as well as the Grasshopper definition so that you can customize and print one for yourself. These are made to use the cartridges from a standard Bic Ballpoint Pen. To learn more about the design and printing process, read Formlabs' Blog '7 Days, 700 Pens: Parametric Design for Customized Conference Swag'

Grasshopper Definition

The pens were generated using the Grasshopper plugin for Rhino. The following steps outline a way to access this definition: 

1. Download a free trial of Rhino. 

2. Install Grasshopper (free). 

3. Open the definition.

4. Use the built-in sliders to drag and preview the settings you want to change. 

5. Right click and Bake.

6. Select Model. 

7. File > Export Selected in STL format. 

8. Print with your favorite 3D printer. 

9. Share your model on Pinshape!

  • Design Files

    File Size

    169 KB
    29.1 KB
    9.25 MB
    10.1 MB
    9.79 MB
    10.5 MB
    10.2 MB
    10.1 MB
    10.2 MB
    10.2 MB
    3.65 MB
    5.11 MB


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