Giant Spiky Perko Knot

thingiverse

This knot was created by exporting a model from KnotPlot and then adding extrusions to each mesh face in TopMod, followed by printing with an Ultimaker 3 using dissolvable PVA supports (the second picture shows the newly-printed knot in a bucket being filled with water). Inspiration and KnotPlot model are credited to my student Jonathan Gerhard; you can read about his related project on his blog Mathematical ADD here: The Perko Praxinoscope and the Shrikhande Graph. For information about how this model was designed and 3D printed in PLA with dissolvable PVA supports, see our article at Hacktastic: Giant Spiky Perko Knot. **UPDATE:** Follow along with a reprint of this model in PLA with breakaway supports at our new article at Hacktastic: Perko Knot Reprint: Dissolvable vs. Breakaway Supports. You can buy a much smaller version of this knot in our Shapeways shop. <iframe width="625" height="652" frameborder="0" allowfullscreen allowtransparency src="//www.shapeways.com/fragments/product?spin=E3JWWSJE3"></iframe> Twitter: twitter.com/mathgrrl Hacktastic blog: www.mathgrrl.com/hacktastic Shapeways geekhaus store: www.shapeways.com/shops/mathgrrl *This design and all associated pictures and files are licensed under the Creative Commons Attribution Non-Commercial Share Alike license. If you want to use designs, images, or files outside of the terms of this license, please email request@mathgrrl.com.*