"Twin Tops" is my rendition of Grand Illusions "Magneturn" (grand-illusions.com). Spinning either top induces motion into the remaining top thanks to magnetics. The design also minimizes rotational friction via opposing magnetics between the Base tower tops and each Top. As combined these features create a great magnetics educational tool. My rendition is larger than the original to make it more "grandkid friendly" (easier to grasp, more difficult to swallow).
You will need to purchase 10 neodymium disk magnets 12mm in diameter and 3mm thick in order to complete "Twin Tops". I have purchased these magnets from a local hardware store (Ace) and online (Amazon).
Video of prototype is here: https://www.youtube.com/watch?v=woXns1lunyA.
Video of Grand Illusions "Magneturn" is here: https://www.youtube.com/watch?v=zllYJokkvV4&t=10s.
Designed using Fusion 360, Sliced using Cura 2.3.1, and printed in PLA on an Ultimaker 3 Extended.
In order to correctly orient the magnets, I started by stacking all 10 magnets together, then one by one placing an "X" on the topmost magnet using an indelible ink pen, sliding that magnet off the stack, then repeat the process with the next magnet until all 10 magnets are marked.
Position the Top "arm" magnets into the 6 arms with the "X" facing outward.
Position the Base "tower" magnets into the towers with the "X" facing upward.
Finally, position the Top "center" magnets into the Tops with the "X" facing downward (the "X" must be visible when looking into the Top).
Slide the tops onto the Base towers and spin.
The more mistakes I make, the more knowledge I gain.
You like Cults and you want to help us continue the adventure independently? Please note that we are a small team of 3 people, therefore it is very simple to support us to maintain the activity and create future developments. Here are 4 solutions accessible to all:
ADVERTISING: Disable your AdBlock banner blocker and click on our banner ads.
DONATE: If you want, you can make a donation via PayPal here.
WORD OF MOUTH: Invite your friends to come, discover the platform and the magnificent 3D files shared by the community!