Wall-mount Tinkertoy Sphere (Montessori-style)

This is a new way to play with a Tinkertoy Construction Set. It's a half-dome full of slots to accommodate the wooden rods, that you can screw onto a wall.

I needed a quick wall-mount mobile arm, so naturally I got to work remixing my earlier Tinkertoy Sphere Game.

If you don't have any Tinkertoy rods, you can get a full set of replacement models here: https://www.printables.com/model/241063-tinkertoy-construction-set-replacement-parts

Design features

• The overall shape is 36mm in diameter (slightly smaller than the original version, to hide the screw holes inside the Tinkertoy slots).
• There are 8 slots at 0 degrees (mounting plane), 6 slots at 45 degrees, and 1 slot at 90 degrees (perpendicular to the mounting plane). 
• There are mounting holes through two of the 45 degree slots for a #6 or #8 countersunk wood screw (North American standard).
• The rod slots are chamfered for easy insertion.

Printing instructions

• Choose an appropriate material for your application.
• The fit should be good, but if it's too loose or too tight, try scaling the model slightly (< 1%) equally in all axes.

Installation instructions

• Use two  #6 or #8 countersunk wood screws (North American standard) to securely attach it to your wall.
• The lower screw has some horizontal play for fine-tuning the angle.

Safety notes

• Make sure that the way you use this won't cause injury or damage if a rod falls out. Consider glue for a more secure attachment.
• Please supervise your children at all times.

Notes

• I designed this model in OpenSCAD and it's fully parameterized. If you'd like a simple modification (different base or slot sizes, angles, number of slots, etc.), send me a message and I'll see what I can do.