No label defined (Q91774)

Could there be anything more fun than drawing 3D surface plots? Yes, you can 3D print 3D surface plots and hold them in your own hands! (Indeed, I wrote this OpenSCAD program in 2011 for a math teacher who wanted some tangible 3D plots for a blind student.) And, it would be REALLY COOL to mod this somehow for dualstrusion to produce AWESOME contour plots. For example, print every fifth layer in a contrasting color. The one in the photo was done manually using the Jetty Firmware's "Pause at Z-height" and changing out the filament in a single extruder. At any rate, be the first carbon-based life unit on your block with a Lego(tm) set which includes z(x,y) = cos(sqrt(x^2+y^2))/(1+x^2+y^2) Or, print your own doll house washboard with z(x,y) = cos(|x|+|y|).