• COMP*PASS (Ver3.0)
    COMP*PASS (Ver3.0)
  • Smartphone software connecting with COMP*PASS
    Smartphone software connecting with COMP*PASS
  • Copying a rectangle
    Copying a rectangle
  • Duplicating a rectangle
    Duplicating a rectangle
  • Copying and Pasting Cuboids
    Copying and Pasting Cuboids
  • Duplicating Free-Form Curves
    Duplicating Free-Form Curves
  • Prototype Ver0.0
    Prototype Ver0.0
  • Prototype Ver1.0
    Prototype Ver1.0
  • Prototype Ver2.0
    Prototype Ver2.0
  • User's experience in an exhibition
    User's experience in an exhibition
Demo Movie of COMP*PASS
What It Does

COMP*PASS is a drawing tool that can draw various kinds of figures on physical papers. By regulating the radius of the pen, users can draw digital controlled figures only by twisting. Also, by referring ordinary compass’s function of “measuring distances,” COMP*PASS enables users to record and duplicate figures. The drawing supporting functions of CAD systems is released from displays to physical environment and integrated into a daily tool seamlessly.

The Inspiration

Down the ages, people have been utilizing various stationeries such as rulers or compasses to draw precise figures by own hands. On the other hand, as computers developed, CAD software has enabled us to draw precise figures and duplicate them easily on the display. But these systems lack the intuitiveness comparing to drawing on physical papers.
Under such backgrounds, I believe that we need to design drawing which includes both advantage of digital and manual. To realize this goal, I have released the digital drawing system from displays and seamlessly integrated into one of our daily tools, “compass.”

How It Works

The function of COMP*PASS can be mainly divided into 2 types; the drawing function and the duplicating function.
With the drawing function, users can draw various kinds of figures only by rotating. By connecting COMP*PASS with smartphone application, user can choose or edit figure data to draw. It also allows drawing tools to be changed, permitting various types of pens to be attached. Specifically, by attaching cutters from cutting machines, it can cut out papers according to digital figure data.
With the duplicating function, it enables us to copy and paste figures on physical environment by referring the ordinary compass’s use of “measuring distance.” I have designed recording modes for rectangles, cuboids and free-form curves.

Stages of Development

I have spent a year to develop COMP*PASS, trying various kinds of forms and functions. At the beginning, I adopted the shape of ordinal compass for the device design, but I have found out that it is difficult to rotate with such shape when the pen dynamically moves. Thus, I have referred the shape of a beam-compass for the interface to stabilize the regulation of radius.
We plan to commercialize this product as a daily stationery and propose various scenes using it such as daily fabrication, education or processional architectonics.


I have published papers in both Japanese and international academic conferences.

ex) ACM CHI2014