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This commit is contained in:
Martin Budden
2021-06-15 09:56:37 +01:00
parent fe3b84f672
commit 8d7c44b80d
30 changed files with 41 additions and 41 deletions
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4
utils/core/polyholes.scad
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@@ -28,12 +28,12 @@
//! large increase in the number of facets.
//! When set to 1 the polygons alternate each layer, when set higher the rotation takes `twist + 1` layers to repeat.
//! A small additional rotation is added to make the polygon rotate one more side over the length of the hole to make it appear round when
//! veiwed end on.
//! viewed end on.
//!
//! When `twist` is set the resulting cylinder is extended by `eps` at each end so that the exact length of the hole can be used without
//! leaving a scar on either surface.
//
function sides(r, n = undef) = is_undef(n) ? max(round(4 * r), 3) : n ? max(n, 3) : r2sides(r); //! Optimium number of sides for specified radius
function sides(r, n = undef) = is_undef(n) ? max(round(4 * r), 3) : n ? max(n, 3) : r2sides(r); //! Optimum number of sides for specified radius
function corrected_radius(r, n = undef) = r / cos(180 / sides(r, n)); //! Adjusted radius to make flats lie on the circle
function corrected_diameter(d, n = undef) = 2 * corrected_radius(d / 2 , n); //! Adjusted diameter to make flats lie on the circle

2
utils/core/teardrops.scad
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@@ -26,7 +26,7 @@
//
module teardrop(h, r, center = true, truncate = true, chamfer = 0, chamfer_both_ends = true, plus = false) { //! For making horizontal holes that don't need support material, set `truncate = false` to make traditional RepRap teardrops that don't even need bridging
module teardrop_2d(r, truncate) {
er = layer_height / 2 - eps; // Extrustion edge radius
er = layer_height / 2 - eps; // Extrusion edge radius
R = plus ? r + er : r; // Corrected radius
offset = plus ? -er : 0; // Offset inwards
hull()

2
utils/gears.scad
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@@ -135,4 +135,4 @@ function involute_worm_profile(m, pa = 20, clearance = undef) = //! Calculate wo
let(tooth = involute_rack_tooth_profile(m),
pitch = PI * m,
y_min = min([for(p = tooth) p.y])
) [for(p = tooth) [p.x - pitch / 2, p.y - y_min, 0]]; // Offset to be positive in y, centred in x and add 0 z ordintate
) [for(p = tooth) [p.x - pitch / 2, p.y - y_min, 0]]; // Offset to be positive in y, centred in x and add 0 z coordinate

2
utils/sweep.scad
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@@ -18,7 +18,7 @@
//
//
//! Utility to generate a polhedron by sweeping a 2D profile along a 3D path and utilities for generating paths.
//! Utility to generate a polyhedron by sweeping a 2D profile along a 3D path and utilities for generating paths.
//!
//! The initial orientation is the Y axis of the profile points towards the initial center of curvature, Frenet-Serret style.
//! Subsequent rotations use the minimum rotation method.

2
utils/tube.scad
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@@ -69,7 +69,7 @@ module woven_tube(or, ir, h, center= true, colour = grey(30), colour2, warp = 2,
}
}
module rectangular_tube(size, center = true, thickness = 1, fillet = 0.5) { //! Create a retangular tube with filleted corners
module rectangular_tube(size, center = true, thickness = 1, fillet = 0.5) { //! Create a rectangular tube with filleted corners
extrude_if(size.z, center = center)
difference() {
rounded_square([size.x, size.y], fillet);