Introduction: 3D Printed Tactile Adaptive Tic Tac Toe
This is a 3D, tactile version of the classic game of tic tac toe. Two players take turns placing their pegs into one of nine holes on a board. Each player is given a set of 8 pegs with either square or round heads. The first player to connect 3 consecutive pegs horizontally, vertically, or diagonally wins.
Supplies
Design:
Autodesk Fusion 360 CAD Software
Printing:
3D Printer (pictured/used: MakerBot Sketch)
Filament
Step 1: Brainstorm Adaptive Game Idea
First, we brainstormed ideas for our game. We could create a completely new game, or take an existing game and upgrade it to be adaptive for people with visual challenges. After we researched some existing board games as well as games with a tactile element, we settled on tic tac toe as our game of choice.
Step 2: Create Diagram
After settling on our design idea, we created a diagram of the game. The diagram must include all pieces and show at least one to two views of the board (pref. top and side with braille). However, it does not necessarily have to be an orthographic drawing.
Step 3: Write Description + Rules
After creating the diagram, create a description of the game as well as a list of rules and tactile adaptations.
Step 4: Create Box
In Fusion 360, draw the top view of the box according to the diagram. Extrude the relevant portions to your desired height; so that there are 9 deep square holes (but that do not go through the bottom of the box), connected by shallower grooves with elevated squares in between, contained in a square exterior. Fillet edges to preference. Add braille text on side of the box indicating that the cube-topped pieces would correspond to Xs in traditional tic tac toe, and the spheres to the Os.
Step 5: Create Pieces
Draw a square with the same dimensions as the holes in the box. Extrude accordingly, to a slightly taller height than holes. Copy the rectangular. For one, create a sphere and center on top. For the other, create a cube. Both sphere and cube should be decently wider than shaft. Copy each piece 7 more times, creating 8 pieces of each cap shape; 16 in total.


