3.66 hrs 2 pcs f 0.20 mm k 0.40 mm h 1 59.00 g d Prusa MK3/S Print Files (.gcode) DOWNLOAD ALL FILES Summary There are 363 ways to fit the 16 pieces into the frame. Good for all ages. Hint: The solution is engraved in on the backside, so you can't lose the solution. :-) Enjoy your time! Toys & Games > Puzzles & Brain-teasers valentinesday puzzle heart brainteaser Print at least from two colors. Creative MinerX Heart puzzle - Brain teaser VIEW IN BROWSER updated 7. 4. 2020 | published 7. 4. 2020