separate data into *-data.scad for 3d models

[challenge-bot] / 3d-printables / deck-data.scad

// challenge-bot
// GNU AGPLv3 (or later at your option)
// project available at these locations:
// https://gitorious.org/ozzloy/challenge-bot
// https://github.com/waynegramlich/challenge-bot

// all measurements are in mm unless stated otherwise

// metric version of deck:
deck_length = 250;
deck_width = deck_length;
deck_depth = 5;
deck_pitch = 10;
deck_grid_hole = 3;
deck_hole_type = "square";
deck_centered = true;

/*
  // imperial version of deck
deck_length = 203.2; // 8 inches
deck_width = deck_length;
deck_depth = 25.4 * 3 / 16; // 3 / 16 of an inch
deck_pitch = 25.4; // 1 inch
deck_grid_hole = 6.35 / 2; // 1/4 inch diameter, 1/8 inch radius
deck_hole_type = "circle";
*/

module deck_2d(width, length, pitch, hole, hole_type, center = false) {
  center_width_offset = center ? -(width / 2) : 0;
  center_length_offset = center ? -(length / 2) : 0;
  translate([center_width_offset, center_length_offset]) {
    difference() {
      square([width, length]);
      for (y = [0:floor(length / pitch) - 1],
           x = [0:floor(width / pitch) - 1]) {
        translate([pitch * (x + 0.5), pitch * (y + 0.5)]) {
          if (hole_type == "circle") {
            circle(hole, center = true); }
          else if (hole_type == "square") {
            square(hole, center = true); }
          else {
            echo(str("don't know the hole type: ", hole_type)); } } } } } }

module deck(width, length, depth, pitch, hole, hole_type, center = false) {
  linear_extrude(height = depth) {
    deck_2d(width, length, pitch, hole, hole_type, center); } }