Daily Equation #11 - y = sin(cos(x/7)+sin(x))*x

This is Day 11 of my collection of printable equations. To see the whole collection, go to: http://www.thingiverse.com/thing:227210

Based on plastic's request in the comments, (http://www.thingiverse.com/thing:231587/#comments), for today's equation, I'm doing y = sin(cos(x/7)+sin(x))*x. I've included the Openscad file in case someone wants to modify the text or stand.

Details:

• There's a surprise guest in the pictures.
• units are in mm
• y scaled by 0.5 and x scaled by 1/9 to keep size reasonable
• Range(x) = 0 to 200
• I'm still using the original algorithm for creating the thick curve, which can produce artifacts at rapid changes in slope. I'm working on an improved algorithm that will filter out the artifacts, but haven't had time to finish it.

As always, I'm going to continue to post one equation per day until get bored or people lose interest. If there's a particular equation you'd like to see, leave a comment and I'll give it a shot.