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This is one of my favorite puzzles. I have a few others that I wish to build someday, but this one must come first. Many of my favorite puzzles came from my Paternal Grandfather, but this one I discovered at the Science Museum in Seattle, WA.

I have to admit that I tried to solve it several times while visiting the museum with my children, but eventually I saw someone solve it. So I discovered the solution without beating it myself, but it is a great challenge and I wish to share it with others.

Supplies:

Please utilize what you have on hand. Spare wood, 3D printer, cardboard, plastic, kite string: it doesn't matter.

I personally used some spare wood from my shop, 550 paracord, and some rings from my daughter's jewelry kit. Initially I was going to design and 3D print this project on a smaller scale, but instead it can be created in minutes with the right tools and some scrap lumber.

Tools:

I used a miter saw and a drill, some screws, plastic rings and 550 paracord.

I will supply the dimensions of my project, but again you can change it up to accommodate for the supplies that you have on hand.

Warning:

It can be hazardous to use the recommended tools. I am laughing as I write this only because I hurt myself tonight working on this project. I was wearing flip flops and dropped a drill on my foot drill bit side down. I tore myself up pretty good. Please use caution and wear proper foot wear at all times. Also hearing protection, gloves and other PPE.


Step 1: Parts and Pieces

I used a 1" x 7" base that is 19.5 inches long.

2 each Uprights 1" x 3" that are 12 inches long

1 top piece that is 1" x 3" and 18 inches long.

The center hole is cut with a spade bit that is 5/8". I tried a 1/2" spade bit initially, but I found it a bit tight for this puzzle.

I cut a 35" piece of paracord and used some 3/4 inch diameter rings to attach to the cord.

<p>would you be able to fix the video explanation as it doesn't work for some reason. I'm definitely going to make this but the solution will help me with my own design. </p>
<p>I can also probably put the solution into words that would make sense if you want me to go that route.</p>
I'm in no real hurry so when you can get around to it. If you can send the video to me via Google drive for large files that would also work.<br>Thanks for the response.
<p>I replaced the video, but the new video failed too. The original was working when I added it. I can email the video to you with wetransfer, but with my remodel job I do not have time to dig into why the video is failing on the Instructable right now.</p>
<p>I have a new program that allows me to transfer large files from my phone. So let me see what I can do. I am remodeling a kitchen right now, but I will try to get something up in the next couple of days.</p>
<p>Did you mean to say 3/4 &quot; DIAMETER rather than circumference?</p>
I will fix it tomorrow. Thank you for bringing this to my attention.
<p>Rings, that is. </p>
Thanks for the puzzle! I quickly put one together with a shoe box and washers. It's not pretty but I enjoyed the challenge :)
I think it is awesome. Thanks for sharing. Clever use of supplies on hand.
Can you send a link to the video
<p>I will try to figure something out for you later this weekend. It too would be in MP4 format though as I only have one video of the solution. Are you unable to open the video in the Instructable located in step 4?</p>
<p>would like to use this at a function before month end. Solution would be appreciated nzarcher@gmail.com</p>

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