Joineries & Mechanisms TinkerCAD
Linkage
Rectangle 60 * 10
2 small cylinders 4 * 4 for holes
2 Half cylinder 10 * 5 for edges
Ball and socket
Great for 360 planar rotations
10*10*20 (h)
3.5 * 3.5 * 20 (h)
Add a 7*7*7 sphere
Make a copy of the sphere
Align the sphere at the top of the cyclinder
Make hole the sphere and Union group
Merge both shapes
Gear
Add 1 rectangle with those dimensions, with 2 cylinder on each side, then group.
Height 5 for all shapes
Add those 2 cylinder with those dimensions
Height 10
Height 5
Use the Circular Array Trick
I
Align center
Select all and union group
Same Process for the 2 other gears
Gear 2 Dimensions:
Gear 3 Dimensions:
Slider