A Room-Sized Spirograph Machine

[webby]

who needs a small kids toy, when you could build this

 

[KennyGS]

I wonder what brand of pen they prefer.

 

[Nomar06]

looks like a Bic for the last couple of seconds of the vid.

 

[webby]

 

[KennyGS]

Thanks. That is quite the glob of ink.