TL;DR

This is a look a like of the Rotating Rings Toy made by RarelyEvil February 16, 2014,
i made this one using only the slicer as a demonstration how mighty the Prusaslicer and most of his forks are today.

Yah, this toy is made without CAD and i show you step by step how that is done.

Collection

• rotating rings
• prusaslicer
  

Let's get started

Steps to make the famous rotary ring toy
without CAD software using your slicer only.

Step 1 to 4 are each 6 steps but always the same.

XYZ Number?

The first number is the diameter of the sphere,
the second and third are the X and Y coordinates you have to set
this is important to ensure that all parts are placed proper.
The last number i the Z distance.

Example:

XYZ 53 100 100 26.5

This is add sphere with 53 mm diameter and set X and Y to 100
Z did not need to set it has the right value.

XYZ 47 100 100 26.5

This is add negative volumne sphere with 47 mm diameter
and set X and Y to 100 and Z to 26.5

Let's do it:

Start a new project in your slicer

1. add sphere diameter position XYZ 53 100 100 26.5
   add neg vol sphere diameter position XYZ 47 100 100 26.5
   cut 18.5 drop lower part
   cut 16 drop upper part
   export as STL1.stl
   delete all
2. add sphere diameter 45.8 position XYZ 100 100 22.9
   add neg vol sphere diameter position XYZ 39.8 100 100 22.9
   cut 14.9 drop lower part
   cut 16 drop upper part
   export as STL2.stl
   delete all
3. add sphere diameter position XYZ 38.6 100 100 19.3
   add neg vol sphere diameter position XYZ 36.6 100 100 19.3
   cut 11.3 drop lower part
   cut 16 drop upper part
   export as STL3.stl
   delete all
4. add sphere diameter position XYZ 31.4 100 100 15.7
   add neg vol sphere diameter position XYZ 25.4 100 100 15.7
   cut 7.7 drop lower part
   cut 16 drop upper part
   export as STL4.stl
   delete all
5. add sphere diameter position XYZ 24.2 100 100 12.1
   cut 4.1 drop lower part
   cut 16 drop upper part
   export as STL5.stl
   delete all
6. import all STL[1..5].stl files at once
7. save the project.

Recommended slicer settings:

layer height as low as you can go
The lower the smoother.
Will work nice from 0.4 down to 0.1 or less.
No matter if arachne or classic.
Use align for the seam, don't use random, nearest or back.
Concentric for top and bottom layer

Choose if you like the fidget lightweight or heavy!
Many people like the sensation of the heavy version.

light version: 23 g
3 top/bottom layers
2 Perimeters
rectilinear infill 15% for the bullseye only

heavy version: 37 g
3 perimeters
concentric infill 100%

Geometrie of rotating rings

If interested you may have a look into the freecad version i made a while ago:

rotating rings - freeCAD exercise

Filament used

eryone gold silver cooper