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Added groove to linear_rail.

This commit is contained in:
Martin Budden 2020-02-27 09:47:36 +00:00
parent ad719dad5a
commit a487ca0f20
1 changed files with 21 additions and 5 deletions
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26
vitamins/rail.scad
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@ -133,20 +133,36 @@ module rail(type, length) { //! Draw the specified rail
vitamin(str("rail(", type[0], ", ", length, "): Linear rail ", type[0], " x ", length, "mm"));
color(grey90) {
linear_extrude(height = height - rail_bore_depth(type)) difference() {
linear_extrude(height - rail_bore_depth(type)) difference() {
square([length, width], center = true);
rail_hole_positions(type, length)
circle(d = rail_hole(type));
}
translate_z(rail_height(type) - rail_bore_depth(type))
linear_extrude(height = rail_bore_depth(type)) difference() {
square([length, width], center = true);
translate_z(rail_height(type) - rail_bore_depth(type)) {
h1 = rail_bore_depth(type) > 2 ? rail_bore_depth(type) / 3 : rail_bore_depth(type) / 2;
h0 = rail_bore_depth(type) > 2 ? (rail_bore_depth(type) - h1) / 2 : 0;
h2 = rail_bore_depth(type) - h1 - h0;
linear_extrude(h0) difference() {
square([length, width], center = true);
rail_hole_positions(type, length)
circle(d = rail_bore(type));
}
translate_z(h0)
linear_extrude(h1) difference() {
w1 = max(width - 2, rail_bore(type));
square([length, w1], center = true);
rail_hole_positions(type, length)
circle(d = rail_bore(type));
}
translate_z(h0 + h1)
linear_extrude(h2) difference() {
square([length, width], center = true);
rail_hole_positions(type, length)
circle(d = rail_bore(type));
}
}
}
}