Bug Spinner

prusaprinters

<p>The idea comes from this fidget spinner: <strong>Gobigger Pillbug Spinner Fidget Toy.&nbsp;</strong></p><p><strong>https://fablades.com/product/gobigger-pillbug/</strong></p><p>Look for it on the internet and see what I am talking about.</p><p>The metal version is obviously better but it is pretty expensive too and I wanted to see what was possible with 3D printing. You will need some hardware like magnets and a bearing but at least screws are not.</p><p>&nbsp;</p><p><strong>PARTS NEEDED</strong></p><ul><li>12 x Magnets 5x5 mm cylindrical (<a href="https://it.aliexpress.com/item/1005001991829706.html">aliexpress</a>)</li><li>1 x Bearing 8x22x7 mm freely moving; I stole it from an old fidget spinner but you can deep clean a common skateboard bearing. You can also print one of <a href="https://www.printables.com/it/model/120591-custom-parametric-bearing-with-steel-balls">mine</a>, they should be frictionless enough</li></ul><p>&nbsp;</p><p><strong>PRINTING</strong></p><p>PLA or other materials, no requirements. You can visualize the full assembled model and divide it into pieces in the slicer or just print what follows:</p><ul><li>Core 1-2</li><li>Ring 1-2</li><li>6 x Wing</li></ul><p>The wings are the only parts that need supports, so I attached a support enforcer file: supports are placed in the overhanging areas, like in the joint and the upper half of the wing. I suggest snug supports for better cleaning.</p><figure class="image image_resized image-style-align-left" style="width:47.27%;"><img src="https://media.printables.com/media/prints/295128/rich_content/3a3dff04-0ec2-4164-a5bb-680908ad830b/img_7309.jpg#%7B%22uuid%22%3A%22adfbc3bd-ee9c-4ca2-a5d3-fcf5898ac6b1%22%2C%22w%22%3A3024%2C%22h%22%3A4032%7D"></figure><p><img class="image_resized" style="width:47.12%;" src="https://media.printables.com/media/prints/295128/rich_content/057146c2-30ce-440d-8a39-d6c699a37246/img_7310.jpg#%7B%22uuid%22%3A%2251c546d9-7a61-4924-a4ff-3c70bd07e820%22%2C%22w%22%3A3024%2C%22h%22%3A4032%7D"></p><figure class="image image_resized image-style-align-left" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/f16944fb-1d07-4892-b384-29711b1a9681/support-1.png#%7B%22uuid%22%3A%229172b754-f1d6-4d0f-ad3e-1b07248233a8%22%2C%22w%22%3A1033%2C%22h%22%3A795%7D"></figure><p><img class="image_resized" style="width:45.45%;" src="https://media.printables.com/media/prints/295128/rich_content/9a1bf802-b6f4-4e24-9fd5-97eaff8f1ffe/support-2.png#%7B%22uuid%22%3A%220893ccb4-f06f-4510-8492-0612f61e544d%22%2C%22w%22%3A896%2C%22h%22%3A753%7D"></p><p>You will need to cut 6 pieces of filament about 11mm long: straighten a filament section and cut 6 segments with at least one end at 45° making it pointy. It is possible to make them longer and trim them later, no need for precision now.</p><figure class="image image_resized" style="width:71.09%;"><img src="https://media.printables.com/media/prints/295128/rich_content/250141e2-3150-4303-a469-967813ba73cc/img_7269.jpg#%7B%22uuid%22%3A%22706e8559-a583-41e8-b359-52ee97cb1fc2%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>If you have problems with the tolerances of the parts try adjusting them before printing in the slicer, using the XY compensation for holes and perimeters.</p><p>&nbsp;</p><p><strong>ASSEMBLY</strong></p><figure class="image image_resized image-style-align-left" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/24537118-e198-452d-ab97-94bbb19d4bdb/img_7265.jpg#%7B%22uuid%22%3A%227020b3ad-9773-4b07-8784-61a8735f7904%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>Prepare the Wings: remove the supports and clean them as good as possible. I know it can be difficult but it works better with flat faces. Use an exactor knife to make the contact surface with the supports as flat as possible.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><figure class="image image_resized image-style-align-left" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/8e861864-0b4d-485e-8123-29e712a60b66/img_7267.jpg#%7B%22uuid%22%3A%22d86c5459-55ac-41b9-ba7f-71f37791be6b%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>&nbsp;</p><p>Insert the magnets inside the wings. Check for polarity: it must be the same for every wing.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><figure class="image image-style-align-left image_resized" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/235dd435-1bab-4928-a438-2c19e4aad695/img_7271.jpg#%7B%22uuid%22%3A%224a5e1962-4406-4ac2-be3a-9b7b65dc9a82%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>&nbsp;</p><p>Put the remaining magnets in a radial configuration around the bearing and place it inside a Ring part. The polarity of the magnets must attract the wings on their insides.&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><figure class="image image_resized image-style-align-left" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/d5feca81-cbd4-4b10-851c-896f11782712/img_7272.jpg#%7B%22uuid%22%3A%22ad6d782a-5f29-4fc0-b428-1060238a9608%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>I tried different approaches to perform the last step and you can try inserting the filament segments as shown in the picture but it is not the best way.</p><p>Try instead this way: close the bearing with the leftover Ring part; insert one by one, in order, the wings with the corresponding segment and push it all the way in. Trim the excess filament flush to the rings using a plier.</p><p>&nbsp;</p><figure class="image image-style-align-left image_resized" style="width:50%;"><img src="https://media.printables.com/media/prints/295128/rich_content/3a3db6bf-3901-4f1a-bae7-781bbe5250ef/img_7313.jpg#%7B%22uuid%22%3A%220842b686-a399-4554-a033-fe1b4477b868%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>Check for the correct opening of the wings: they should open without friction and snap close when released.&nbsp;</p><p>Insert the two sides of the Core and you are done!</p><p>Everything should stay together with friction but if it is not enough just use a drop of super glue between the rings or the core.</p><p>&nbsp;</p><p>&nbsp;</p><p>If you spin it fast enough the wings will open out and should stop without closing them. Just a touch and it snaps close. It could also be a satisfying action to open and close manually the wings.</p><p>&nbsp;</p><p><strong>DESIGN PROCESS</strong></p><p>I made several versions and this is the simplest one and easy to assemble. I tried avoiding supports but there was no good or pleasing way, or I did not like the geometry of the parts. I also used screws at the beginning making them pretty strong but finding the correct length ones with flush head was too hard to present here so I just used filament friction.</p><p>&nbsp;</p><p>Hope you like it. Let me know your opinions.</p><p>Videos of it will be available on my <a href="https://instagram.com/hexagon_3dstudio?igshid=YmMyMTA2M2Y=">Instagram</a>.</p>