ank/glider
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negative space spar

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This commit is contained in:
Andy Killorin 2023-11-01 14:47:33 -05:00
parent e4863440c0
commit b116558e78
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GPG key ID: 8CB11B45B690DC2A
1 changed files with 29 additions and 2 deletions
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31
src/main.rs
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@ -45,8 +45,6 @@ fn main() {
}
// spars
// main wing
scad_file.add_object(spar(WINGSPAN+FUSELAGE_GAP*2.0, true));
// "fuselage"
scad_file.add_object(scad!(Rotate(-90.0, vec3(0.0, 0.0, 1.0));
@ -100,6 +98,35 @@ fn strut(airfoil: &Airfoil, chord: f32, width: f32) -> ScadObject {
let aerofoil = scad::PolygonParameters::new(airfoil.get_points().clone());
let shape = scad!(Polygon(aerofoil));
let strut_hole = {
let points = &airfoil.get_points()[0..80];
let perimeter = span_length(points);
let span = points_in_range(&Vec::from(points), perimeter * 0.4.. perimeter);
let mut mask = scad!(Union);
let mut last: Option<ScadObject> = None;
for point in span {
let mut current = scad!(Square(vec2(0.001/ chord, CARDBOARD_WIDTH / chord)));
current = scad!(Translate2d(point.clone() - vec2(0.0, CARDBOARD_WIDTH/chord)); current);
if let Some(last_mask) = last {
let mut hull = scad!(Hull);
hull.add_child(current.clone());
hull.add_child(last_mask);
mask.add_child(hull);
}
last = Some(current);
}
register_part(mask.clone());
mask
};
let mut strut_shape = scad!(Difference);
strut_shape.add_child(shape);
strut_shape.add_child(strut_hole);
let shape = strut_shape;
let extrude = LinExtrudeParams {
height: width,
center: true,