Question

has anyone ever drawn a perfect circle on an etch a sketch?

Answer 1

nope

Answer 2

nope :/

Answer 3

No one has ever

Answer 4

probably isn't as hard as you think it is. Get two servo motors, and program them to spin, one (horizontal) with v_x(t)=cos t and the other (vertical) with v_y(t)= sin t. Attach the servos, and you're good to go with a circle drawer.

Answer 5

Some internet hacks have you breaking the etch a sketch open, but honestly, that fine aluminum dust can make you seriously ill.

Answer 6

Here's an example of my (apparently old) idea in action: http://www.instructables.com/id/EtchABot-a-Versatile-CNC-Etch-a-Sketch/

Answer 7

pure mathematicians would say that drawing a perfect circle on anything is impossible: https://www.quora.com/Geometry-Is-it-really-impossible-to-construct-a-perfect-circle

Answer 8

^Exactly @jtvatsim