Easigami User Study

  • Principal Investigator: Professor and Dr. Michael Eisenberg, Dept. of Computer Science, University of Colorado Boulder

  • Research Assistant: Yingdan Huang, PhD Candidate, Dept. of Computer Science, University of Colorado Boulder, yingdan.huang@colorado.edu


With the advent of affordable three-dimensional printing and fabrication devices, the design of 3D objects has become an increasingly central activity in creative computational work. A recurring issue in this sort of design, however, is overcoming the "two-dimensional bottleneck" of the standard computer screen and associated conventional input devices: that is, it is difficult to create and visualize tangible objects using such hardware combination and (generally complex) modeling software. As a consequence, there is a growing need for a variety of innovative 3D input tools and techniques that allow users to create, customize, and visualize spatial objects and information "by hand". Easigami is such a tangible 3D sketching tool, which permits users to assemble a wide variety of polyhedral objects by connecting and folding polygonal pieces. The physical arrangement of Easigami pieces is read into a computer and displayed interactively, in real time. Thus Easigami, by its design, blends the natural physical ability of folding paper-like materials with the power of computational representation.

User Study Procedures

Participation in the study is strictly voluntary. If you agree to take part in this study, you will be asked to:

A.    Introduction to the Easigami System (including both the Easigami user interface and the software) and 3D printers – about 10 minutes.

B.     Session 1: learning by doing - about 10 minutes

i.        following a tutorial, create a simple 3D virtual model using Easigami

ii.      exercise on thinking aloud method – say whatever you are looking at, thinking, doing and feeling as you go about the task, and researchers audio/video record this process

C.     Session 2: free exploration - about 30 minutes

i.        create a self-defined, more complex 3D model using Easigami

ii.      think aloud as you work on the task and researchers audio/video record this process

iii.    send a self-defined 3D model to a 3D printer and see how it is being printed

D.    Administration of post-questionnaire about the overall feelings about using Easigami – about 5 minutes

The user study will take about 1 hour of your time.

Easigami User Study Payment

You will be paid $15.00 for participation in this study in the form of cash.

 If you choose to withdraw before the conclusion of this study you will receive partial payment (see the Payment Schedule for Participants below).

 Payment Schedule for Participants




Full participation

1 hour (typical length)


1.5 hour


Early withdrawal

30 – 50 minutes


10 – 29 minutes



Easigami User Study Time an Location:

we allow interested students to schedule their participation with the researcher at the student's convenience. The location of the user studies will be conducted in the Craft Technology Lab in Discovery Learning Center (1B10) on CU Boulder campus.