Numbered Coins

This is a small collection of numbered coins I made to learn some of the features of OpenSCAD. I used the following code to generate them.

The code uses variables, modules, loops, and printed text so its a good example to learn some basics..

```
// see the ascii table
chars=[for(i = [48:57]) i]; // numbers
//chars=[42,43,45,47,61]; // math operators
offset = 25;
coinRadius=10;
coinHeight=5;
numCols=8;
textSize=15;

/* Basic ASCII
33 ! 55 7 77 M 99 c
34 " 56 8 78 N 100 d
35 # 57 9 79 O 101 e
36 $ 58 : 80 P 102 f
37 % 59 ; 81 Q 103 g
38 & 60 < 82 R 104 h
39 ' 61 = 83 S 105 i
40 ( 62 > 84 T 106 j
41 ) 63 ? 85 U 107 k
42 * 64 @ 86 V 108 l
43 + 65 A 87 W 109 m
44 , 66 B 88 X 110 n
45 - 67 C 89 Y 111 o
46 . 68 D 90 Z 112 p
47 / 69 E 91 [ 113 q
48 0 70 F 92 \ 114 r
49 1 71 G 93 ] 115 s
50 2 72 H 94 ^ 116 t
51 3 73 I 95 _ 117 u
52 4 74 J 96 ` 118 v
53 5 75 K 97 a 119 w
54 6 76 L 98 b 120 x
121 y
122 z
*/

/*Extended:
160 184 ¸ 207 Ï 230