Constrained Ball

I love stationery, and Korean Product Designer Giha Woo‘s latest creation, the Constrained Ball, was simply too good not to mention.

We not only write with pens, we draw with them too.  Sometimes curved lines or scribbles, but often it’s that illusive straight line we’re aiming for.  Now, I know you can use a ruler (or in my case, the edge of a notepad) but they can often smudge ink or obscure the page, and they’re not always to hand.

By applying a simple controlling constraint to your pen nib it rolls in one direction only, no more wobbling or uneven lines that convey more of a similarity to a sin wave than the table you are quickly trying to draw up.

Whilst this is great for people who cannot typically draw a straight line freehand, the real smart feature of it allows those already accustomed to drawing straight lines, such architects and interior designers, to accurately measure whilst they draw them too.  The total length of the line drawn is measured by the wheel (a mini digital trundle wheel comes to mind) and displayed right by your finger tip.  I’ve not used one myself but it looks like you’ll be able to get pretty good control down to mm scale accuracy for horizontal, vertical and 45 degree lines.


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3 Responses to “Constrained Ball”


  1. 1 DS October 23, 2010 at 4:35 am

    Wow, constrained ball, any idea how to purchase?


  1. 1 Tweets that mention Constrained Ball « Inspirational Geek -- Topsy.com Trackback on October 18, 2010 at 2:48 pm

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