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Added center argument to trapezoidal_threaded_rod()

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Revar Desmera
2018-11-19 15:20:24 -08:00
parent e2365cf6d2
commit e04a57e291
1 changed files with 7 additions and 4 deletions
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5
threading.scad
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@@ -59,7 +59,7 @@ function _trpzd_thread_pt(thread, threads, start, starts, astep, asteps, part, p
// trapezoidal_threaded_rod(d=16, l=40, pitch=2, thread_angle=30); // trapezoidal_threaded_rod(d=16, l=40, pitch=2, thread_angle=30);
// trapezoidal_threaded_rod(d=10, l=40, pitch=3, thread_angle=15, left_handed=true, starts=3, $fn=36); // trapezoidal_threaded_rod(d=10, l=40, pitch=3, thread_angle=15, left_handed=true, starts=3, $fn=36);
// trapezoidal_threaded_rod(d=50, l=50, pitch=8, thread_angle=30, starts=4, $fa=2, $fs=2); // trapezoidal_threaded_rod(d=50, l=50, pitch=8, thread_angle=30, starts=4, $fa=2, $fs=2);
// trapezoidal_threaded_rod(d=25, l=68, pitch=10, thread_depth=8/3, thread_angle=50, starts=2, $fa=2, $fs=2); // trapezoidal_threaded_rod(d=25, l=100, pitch=10, thread_depth=8/3, thread_angle=50, starts=4, center=false, $fa=2, $fs=2);
module trapezoidal_threaded_rod( module trapezoidal_threaded_rod(
d=10, d=10,
l=100, l=100,
@@ -67,6 +67,7 @@ module trapezoidal_threaded_rod(
thread_angle=15, thread_angle=15,
thread_depth=undef, thread_depth=undef,
left_handed=false, left_handed=false,
center=true,
starts=1 starts=1
) { ) {
astep = 360 / quantup(segs(d/2), starts); astep = 360 / quantup(segs(d/2), starts);
@@ -200,11 +201,13 @@ module trapezoidal_threaded_rod(
) otri ) otri
] ]
); );
up(center? 0 : l/2) {
intersection() { intersection() {
polyhedron(points=poly_points, faces=poly_faces, convexity=threads*starts*2); polyhedron(points=poly_points, faces=poly_faces, convexity=threads*starts*2);
cube([d+1, d+1, l], center=true); cube([d+1, d+1, l], center=true);
} }
} }
}
// Constructs a hex nut for a threaded screw rod. This method makes // Constructs a hex nut for a threaded screw rod. This method makes