FourKnot is a five-piece assembly puzzle. The object is to put the pieces together, such that they form a continuous loop. The solution is a knot shape that has four crossings, according to knot theory
. This makes it the second simplest knot. The knot pieces loop like rope with five stands. The piece are held together by ten 5x5x5-mm magnets
. The puzzle is quite confusing. Other than making the knot, one can fold various rope shapes.
Watch the YouTube video
Watch the 3D-printer in action
Download the CAD model and print it yourself
Read more at the Shapeways Forum
Read more at the Non-Twisty Puzzles Forum
Please order a 3D-printed do-it-yourself puzzle kit from Shapeways at this page (check with Oskar about material, dye and magnets), or contact Oskar
directly if you are interested in obtaining a fully colored and assembled sample of this puzzle.