Constrained Ball
By Ben on Fri Aug 27 2010
Constrained Ball

Constrained Ball

Constrained Ball
Gear  |  Design
"Constrained Ball" is a drawing aid created by Korean designer Giha Woo. Once attached to the pen, this device helps to draw straight lines without using a ruler, measuring the drawn distance at the same time.

Via noquedanblog, designboom
  
#1 Post by Gus, on Fri Aug 27 2010 4:21 PM
Finally someone thought about it! Seems to work fine:)Cool!
#2 Post by asdf, on Fri Aug 27 2010 11:8 PM
dude, thats awesome. i want one!
#3 Post by ello, on Sat Aug 28 2010 3:3 AM
i want one too!  where to buy?!
#4 Post by triyaksena, on Mon Sep 27 2010 12:11 AM
wow+
#5 Post by Sean, on Sat Oct 23 2010 11:48 AM
Where can this be purchased, if available?
#6 Post by dhanar, on Tue May 17 2011 2:0 PM
interesting idea...this is cool invention:))
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