The goal of this classic marble puzzle is to be able to rest the marbles in the holes on each side of the block. Upon first contact with this puzzle, many observers will try to tilt the block to deposit the marbles in the holes. Quickly they will discover that the slope of each hole will not allow this to happen.

Commonly this puzzle has a divider in the middle to keep the marbles from touching. I found that I enjoy the sound that the marbles make when clacking together and the absence of this divider makes the puzzle more difficult.

Please read on to discover how to make your own double marble puzzle

<p>I also did a remake of your design in Fusion360 for 3D printing. Came out great and gave me more practice for learning Fusion360. I didn't add a top and in hind-sight might not have been a great idea as the marbles can pop out. So this requires just the right 'touch' to solve it.</p><p>My son was able to solve it by blowing on the marbles - it only took him two weeks to solve in that fashion. I kept telling him I could do it in under 3 seconds!</p><p>Thanks for the idea! Great woodworking also.</p>
<p>I made it! But with a 3D printer! An awesome idea for a quick gift!</p><p>The model is avaliable at thingiverse and this tutorial properly referenced. thank you for the awesome post and keep up the good work!</p><p>thing files avaliable here:</p><p>http://www.thingiverse.com/thing:1996723</p>
<p>Great little project, will have to make a few before Christmas. Nice job and they look great. </p>
<p>Cool! Definitely going to make this. Thank you for posting!</p>
<p>This is going on &quot;the list&quot;. I've never seen anything like this before. </p><p>Awesome project, write-up, photo's and puzzle. </p>
Nice! I really like this...it has the same principle as my trick opening box. Well done and great job! #ilovepuzzles!
<p>very cool </p><p>I love puzzles that make you think outside the box. </p>
<p>thanks for updating the template. Just to clairify, the two holes are pretty much drilled ninety degree,and you achieve the angle primarily with the angle that you position the dowels in the holes? </p><p>You put in two marbles, only two marbles are required, or, is there another way to do this with the extra marbles shown? You dont actually show adding the marbles as a step. Your finished piece is really sharp looking. </p>
<p>yes only two marbles are required but (1) good luck trying to find a package of just one or two marbles for sale... and (2) just like Lays Patato Chips, good luck on being satisified with just one</p>
<p>Good one <a href="https://www.instructables.com/member/tomatoskins" rel="nofollow">tomatoskins</a>, I like everything except hammering nails on to the plastic. Given that we use what we have lying about some folk will use plastic that can't take the knocks and may have edges that are a lot of work to get nice - imagine I use he strip of rough sawn Perspex I have lying about? May I suggest making the sides a little higher to take a rebate that the plastic could sit in, a lot nicer and safer finish imho?</p>
<p>You can definitely make yours like that. Keep in mind that I only hammered the nails till the touched the cover. I'm sure that hammering any further into the block would have split the plastic. </p>
<p>I think you could make the marble holes more easily by cutting notches in the center piece of wood before gluing. Getting the lip angle just right would be a bit tricky, but you could clamp the three pieces together to test and tweak with a rasp accordingly.</p>
<p>That's a great idea! If I make another I'll see what I can do!</p>
<p>You forgot step 13.5 where you put the marbles into the puzzle just before nailing the polycarbonate into place. :)</p><p>Good job on everything else though. I will make a few for presents.</p>
<p>Where did you buy the polycarbonate?</p>
<p>Polycarbonate can be found at most hardware / home improvement stores. You can ask for it by it's more common names of Plexi-Glass or Lexan.</p>
<p>It doesn't really matter for this application, but Polycarbonate, which is also sold under the brand names Lexan and Makrolon is a different material than PMMA (Polymethylmethacrylate), sold under the names Plexiglas, Acrylite, Perspex, etc. aren't the same material.</p>
I made a similar one few years back by taking two transparent plastic disposable cups, putting 2 table tennis balls in them and joining their open ends with clear plastic tape. The goal was to get a table tennis ball on each side of the cups and this was achieved by spinning the contraption. Remarkably Same, But cheaper and with less hard work ;)
<p>looks cool</p>

About This Instructable




Bio: My name is Troy. I'm a Mechatronics graduate studying Mechanical Engineering. I love making things and doing anything outdoors (especially SCUBA diving). I am ... More »
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