giha woo: constrained ball
‘constrained ball’
‘constrained ball’ is a drawing aid created by korean product designer giha woo. once attached to the pen, this device helps to draw straight lines without using a ruler. normally, a ball point pen rolls freely in accordance with the ball located at the tip of the pen. however, this writing tool prevents winding lines by helping to move the ball in one direction only. using the installed measuring wheel indicated on the product, users can draw the exact desired line length in both a horizontal and vertical direction, as well as strokes in 45 degree angles.
the mounting area is made with a flexible rubber material helping it adhere to the attached pen.
measurement of line is indicated on the product
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great!
i don’t see how it will help to draw straight lines. wouldn’t the pen tip and the wheel pivot randomly around each other? but the measurement tool is cool.
interesting, but it’ll work spontaneously inaccurate..
your writeup is incorrect. all this device does is remove one degree of freedom. consequently it’ll make it easier to draw straight lines but you can still draw curves or lines at any angle, not just 45° as you perplexity stated.
wow~ good job!!!
WHERE DO I BUY THIS OMG.
sounds fantastic, although when do you need it?
if it absolutely needs to be straight use a ruler, or it doesn’t so just draw freely?
practice practice practice
a video of this in action would add more credibility
ridiculous
you cannot draw a straight line with this device
very interesting! I am heartly wanted this!
maybe if it has two wheels it can
I still love to use my old ruler….
(- )and another more a senseless tool. using the ruler, or trust your hand as the most perfect tool. its more ecological (…without batterys for any display…or is it with solar?? and without plastics).
(+)the design is nice.
useless tool.
consider a situation where u use the rubber as the centre of a circle and you use the pen to draw a circle around that centre. your measurement is all wrong as the rubber never moves.
yes i do agree with this products inability to draw a straigh line as mentioned above. but it would be possible with a steady hand.
also it could it not be powered by some super small super savy dynamo inside…
I think that this tool is very useful….
very good idea!!
As ridiculous as an automatic shovel.
exellent idea!
@vlad
automatic shovel; fabulous idea.. maybe with a rubber shaft to reduce fatigue.
Having two wheels in a line will help in drawing straight lines.
its not multifunctional , few more features in the prodouct would make it popular
I think this is a nice idea but just in paper because it will not do what you really want.
Nothing is avoiding the devise to go around the pencil; you are relying in a rubber to keep it in place. This is my simple opinion.
It’s brilliant~~
why not? it’s possible enough~
foutus
Does it works? or its just a concept
It’s not useful idea…
What if I want draw line from point A to point B, which are far from each other … laser line is not here
This is completely retarded and fails to the ruler for many practical usages.
A ruler don’t break, is cheap, not constricting the pen, there’s just so so so much that I cba typing. Seriously think about using this for a project not just drawing a line.
Ruler FTW.
price point?
Because many posts are irrelevant, i recommend read Edward De Bono’s book about lateral thinking and come again. You can learn to appreciate these projects for what they represent.
very great idea !!!!!!
love it!
want one!
go straight?
if really… perfect!
So i have to change my grip to use it?
Idea has potential.
oh my god i need one of this!
Is this item commercially available for purchase?
Hi. could you please let me know how can i get the constrained ball
Thank you
This is actually a really good idea – I know that sometimes when I’m inking a straight line with a ruler, the ruler will smudge the lines and I’ll have to redo the page all over again. so in these kinds of circumstances having an aid to draw a straight line that won’t impact the line itself would be fantastic!
I think this is a great tool as I do art work and sign writing and sometimes rulers slip or get in the way. I know I would use it quite often
How do I buy this??