Domino tiles puzzle - Multiplication tables

Multiplication tables as Domino tiles puzzle.

Every tile is broken into 2 pieces. Find the right answer for each multiplication and check if the tiles fit together.

A storage box for 10 tiles is also available.

Print instructions

STL-files for 1x1 -> 10x9 tiles are available for download.

If you want to create tiles with your own text, open Domino.scad in OpenSCAD.
Use Domino_Box.scad to design your storage boxes.

All parameters are explained in the screenshots.

How can I define my own cutting pattern?

Use the parameter domino_cutting_pattern_string

This parameter accepts a string of these 6 characters (also see screenshot):

• t,T : triangular cutting (t = facing left, T = facing right)
• p,P : trapezoidal cutting (p = facing left, P = facing right)
• r,R : rectangular cutting (r = facing left, R = facing right)

Examples: tTp, pRtP, pRpRpR

Hint: You get the best results for a cut with 3 or 4 characters

I want to print a lot of tiles. How can I make sure that I don't use the same cutting pattern twice?

You don't need to keep a list of used cutting patterns.

If the parameter domino_cutting_pattern_string is empty, then Domino.scad uses the parameter domino_cutting_pattern_predefined instead.

Domino.scad has a list of all 1296 possible combinations of 4 characters cutting patterns.

So, with every new tile, just increase the number in domino_cutting_pattern_predefined by one.

I want to use a different font

You have to change the font attribute in the code (approx. line 66):

module render_text(txt,size) {
linear_extrude(height = 0.5)
text(txt,
halign="center",
valign="center",
size=size,
font="Roboto Mono:style=Bold"
//font="Noto Sans Mono:style=Bold"
//font="DejaVu Sans Mono:style=Bold"
);
}

In OpenSCAD select the menu item "Help"->"Font list" to get a list of available fonts

Printing Instructions

Infill: No preference
Layer Height: 0.2 mm
Supports: None

Have fun