Trispinner remix

thingiverse

I optimized the caps to make them easier to hold onto and prevent them from catching on the bearing. I also simplified the spinner body slightly to make it easier to print. I discovered that the caps were difficult to grip securely (particularly if your print surface gives a glossy finish to the first layer) and had a tendency to rub against the outer part of the bearing, causing friction. I added a concave bullseye pattern on top so that your thumb and finger are cupped slightly and gripped by the ridges. I also added a small raised ring that hits the inner ring of the bearing and prevents the rest of the cap from catching on the outer part of the bearing. These grips make it much easier to hold onto the spinner and get a good spin without accidentally dropping it. The spinner has a small flat area around the three outside bearing holes, which helps with adhesion as the original design had a single line in these areas on the first layer and I encountered issues with prints coming unstuck mid-print. The extra line provides more surface area for the first layer to stay stuck down. Print Settings Printer Brand: Wanhao Printer: Wanhao Duplicator i3 V2 Rafts: Doesn't Matter Supports: Yes Resolution: 0.3mm Infill: 100% Notes: The caps are designed for a 0.3mm layer height, but should also work at 0.1mm; check your layers in your slicer if you want to use anything different. Print the caps so that the wide part is on top and use supports, as this gives the best finish for the top surface. I tried printing them upside down, but the concave bullseye ended up quite messy. Print the spinner flat. Sand the inner edges of the holes slightly if needed to ensure a tight fit for the bearings (they should be a very tight fit). Any resolution will work; lower resolutions are better. No supports are required for the spinner. Print at 100% infill for maximum strength. These caps are designed for use with 608zz bearings that have an 8mm inner diameter, 22 mm outer diameter, and 7mm height.