parametric_trolley_token_demo.md

Parametric trolley token generator

The file parametric_trolley_token.scad can be used as an OpenSCAD library to generate trolley tokens of any currency. There are two models to choose from; one with a flat surface convenient to be printed on fused filament printers without the need of any support material and another model meant to be printed on a SLA printers.

Usage

The module trolley_token() takes up to 7 parameters:

1. coin_1_thickness = [numerical]
2. coin_2_thickness = [numerical]
3. coin_1_diameter = [numerical]
4. coin_2_diameter = [numerical]
5. coin_1_string = [string]
6. coin_2_string = [string]
7. sla_printer = [boolean]

Demo

translate([0, 15, 0])
    trolley_token(string1 = "$$", string2 = "€€");
translate([0, 45, 0])
    trolley_token(2.15, 2.35, 23.2, 27.4, "2Fr", "5Fr", true);
translate([0, -15, 0])
    trolley_token(2.14, 2.38, 22.25, 24.25, "0.2€", "0.5€", true);
translate([0, -45, 0])
    trolley_token(2.33, 2.38, 23.25, 24.25, "1€", "0.5€", false);

Coins dimension table

Currency	Value	Diameter	Thickness
SEK	1 kr	19.5 mm	1.79 mm
SEK	2 kr	22.5 mm	1.79 mm
SEK	5 kr	23.75 mm	1.95 mm
SEK	10 kr	20.5 mm	2.9 mm
EUR	0.2 €	22.25 mm	2.14 mm
EUR	0.5 €	24.25 mm	2.38 mm
EUR	1 €	23.25 mm	2.33 mm
EUR	2 €	25.75 mm	2.20 mm
CHF	1 Fr	23.20 mm	1.55 mm
CHF	2 Fr	27.40 mm	2.15 mm
CHF	5 fr	31.45 mm	2.35 mm
GBP	1 £	23.43 mm	2.8 mm
GBP	2 £	28.4 mm	2.5 mm
...	...	...	...