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Download Burr Puzzles with a Single Removable Piece - Printable Files And Instructions

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Skeleton Key, Locked Sword and Moai's Tomb are 3D printed puzzles. The goal of these puzzles is to remove the top piece from the frame. The other pieces are held captive in the frame and can not be removed.

Now you can print and build a copies for yourself.  Included in the download are: PDF build instructions, 3D printable STL files, PuzzleCAD files, and the BurrTools file solution.  The build will still allow you to solve the puzzles.  

The Gold Skeleton Key is one of my favorite 3D printed puzzles to date. It accomplished something very few of my previous puzzle designs has. I often leave puzzles out when non-puzzling friends come over, and the puzzles generally go untouched. They claim they are 'too difficult' or they just have no interest. I have been trying unsuccessfully for years to design a puzzle that these people would just want to try and not be 'scared' of messing up somehow.  I also wanted that same design to appeal to those who do enjoy puzzling. So, how to come up with a puzzle that is both approachable to those new to puzzles and enjoyable for the puzzle aficionados. Enter the Gold Skeleton Key! This puzzle gets picked up by everyone who sees it. They have to move the key around and push the buttons. Some can solve it, others just like fiddling with it. The best part is that when some of them did solve it, they were so excited I thought I had made new converts to the puzzling world. Alas! They didn't want to try any of my other designs. Oh well.

Skeleton Key has four buttons (burr type pieces) which can not be removed from the frame. Part of what makes it attractive to new puzzlers... You won't forget where the button pieces go, because they only can be in one location. They can move in, out, and sideways a little bit, but only the Golden Key can be removed from the puzzle... And it takes 28 moves to get the key out or back in. So it isn't exactly easy... but it is approachable since there is only 1 piece to keep track of during the solve.

What about Locked Sword, want to free the sword from the case? Locked Sword will take 27 moves for the sword to come free. None of the other pieces can be removed from the frame.

Want to see what lies beneath the Moai's head? Well you will have to maneuver the Moai and the other pieces to free him and see! Moai's Tomb takes 14 moves to free the Moai. None of the other pieces can be removed from the frame.






There are several sets of the files with various inset amounts for the pieces and the joints (in order to account for variability between different printers and different filaments).

Also included is a set of test prints to determine whether you should print the "tight", "regular", or "loose" versions of the puzzle.

The PuzzleCAD file used to generate each STL are also included, along with a link to where to download PuzzleCAD in the 'README' file. 

If you have any troubles with the files please contact me. Please do not share these files.