Simon Gregg laid down the challenge to make a strandbeest leg.[br][br]Strandbeests are movable sculptures by Theo Jansen - find out more from [br][url]http://www.strandbeest.com/[/url] or [url]http://www.ted.com/talks/theo_jansen_creates_new_creatures[/url][br][br]It's quite fun to play with the constants to change the leg. Small changes can make huge differences. Even though Theo's isn't, I wanted C, D', F, E to be a rhombus, but finally added te nudge for F because it really changes the walk.[br][br]Here's a beest by the inventor of GeoGebra, Markus Hohenwarter: [url]https://www.geogebra.org/material/show/id/17499[/url] [br]Simon's is a proper Theo Jansen design: [url]http://tube.geogebra.org/material/show/id/754985[/url][br][br]Hope you have some fun playing!