WARNING: Example model here is not optimal. If you are not going to run the script yourself, better download STL from the remix.
I created a Blender script to create things like this, where you can select:
To generate your own model, add the GenRings file to the Scripting view of an empty blender project then change values (they are in cm) on the bottom side of the file and hit play. IMPORTANT, first thing it does is deletes everything in project, so you can generate few times until you like the result.
Parameters for the model in picture are:
outer_radius = 2.5
ring_width = 0.25
pin_inset = ring_width x 0.6
hole_inset = ring_width x 0.8
ring_height = 0.5
gap = 0.15
num_of_rings = 4
vertices = 120
Category: Toys & Games
The author marked this model as their own original creation. Imported from Thingiverse.