Spiral Wheel Spinner

thingiverse

This part spinner combines a wheel and a roller. It uses a 3-inch O-ring as a tire and functions both as a good spinner and a fun toy to roll across floors or desktops. Leaning at an angle makes it roll in a circle back to you. The spiral design is flexible enough to act like a spring, causing it to bounce. It utilizes a 608 bearing without seals or lubrication. Update: March 5, 2017 - Added a three-arm version of the 3-inch wheel and three and four-arm versions of the 4-inch wheel. Also created a solid center wheel that takes a size 223 O-ring (1 7/8 inches O.D., 1 5/8 inches I.D., 1/8 inch diameter). Additionally, developed a pusher that can be used as an alternative method for launching. Included are images of part numbers and dimensions for 3-inch and 4-inch O-rings purchased at Ace Hardware. If mass-producing these parts, a source to buy them cheaper in bulk online would be sought out. Three-inch O-rings were also found on Amazon - https://smile.amazon.com/gp/product/B0051XZ6KU/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1. Two spiral wheels can be combined to create a good optical illusion similar to some other designs seen out there, but with bearings for better spinning. Small dowels shown in the pictures are used to connect the two wheels and are available at Ace Hardware or any hardware store. Videos of the launcher and optical illusion are available on YouTube - https://youtu.be/_Di3f4jw_Aw and https://youtu.be/R-DSSmePoXE. Print Settings: Printer Brand: SeeMeCNC Printer: Rostock MAX v2 Rafts: No Resolution: 0.3 Notes: Use a 3-inch O-ring for the tire. Printed at 0.3 resolution, five perimeters, three top layers, three bottom layers, and no infill. The perimeters make it solid. Used Transparent Red WYZ PLA with a head temperature of 215 and a bed temperature of 35. Print time was 37 minutes and 38 seconds. For the 223 version, it is recommended to use 100% fill for weight if longer spin times are desired. For the wheel pusher, print settings were 0.2 resolution, five perimeters, three top layers, three bottom layers, and 20% infill. The pusher has a hole in the handle that can be plugged with a 3/8 dowel rod for extra length. A drill bit was run through it to clean the seams, making it fit. The cap shown is one of the included caps. Other ones were used before being printed. They are better because they provide some grip from the grooves. Settings for printing the cap were 0.3 resolution, five perimeters, three top layers, three bottom layers, and 50% infill. Be aware that printing the caps at 0.2 resolution may result in them being too tight. Some noise appears on the preview pictures where the spiral arms join the rim and center. However, they are solidly attached and print fine. This is likely due to the boole used on them. Running one through NetFabb did not change the fixed file, so ignore it.