Magnetic Tensegrity Table

thingiverse

This is my fourth contribution to the topic "Tensegrity". The main difference to other models is that tension in the middle is created by magnetism, not a thread. Therefore, the top is less loadable than with a thread or nylon string, but it's more visually interesting! As I demonstrate in my video, the construction can carry a small pliers of 80g weight. Please note that if magnetic tension is too high, such as when magnets are too close together, this can cause printed parts to bend. There are two tops to choose from. Here's a video: https://youtu.be/lwLGZ7oSHqY I used two small 8x3mm neodymium magnets with very high adhesive strength. Unfortunately, they're only available in larger quantities, like on Amazon at this link: https://www.amazon.de/dp/B072FDBHBF/ref=cm_sw_em_r_mt_dp_U_jfQSEb0A14M3J As tension string, I used a nylon string Ø 0.35mm, available on Amazon here: https://www.amazon.de/dp/B07HLF6SYY/ref=cm_sw_r_cp_tai_x1BUEbP9ACF3G Start inserting the middle parts into the top and socket... make sure to align them correctly by following the arrows at the bottom. Place them as shown in the 5/6th picture! For a good fit, the fitting accuracy is very tight; you may need to correct it with a cutter knife or sandpaper. Apply superglue afterwards. Then insert the magnets into the magnet holders... so they attract each other! They're quite tight, but fix them with some superglue for safety. Afterwards, glue the magnet holders to the middle parts. When the middle parts are glued tightly, start with the more difficult part: threading the nylon string. You'll need 4 threads of about 25cm each; thread or dental floss will also work. At the bottom of the hexagon, you'll see 4 mounting points. Take one thread and make a multiple knot at one end, then pull it through the hole. Place the hexagon with the bottom side facing up... feed the thread through a hole in the socket. Pay attention to top and base alignment! First, just clamp the string; if the notch isn't clean, try opening it with a cutter knife. Do the same with the other 3 strings. Now you can start adjusting: the distance between magnets should be about 3-4 mm. When the strings are slightly tightened... socket and hexagon are aligned horizontally, and the force of attraction is sufficient to ensure a stable stand... then secure the strings! Hurray! You did it! The hexagon is floating! I hope I didn't forget anything in my description. If you have any questions, please contact me!