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Added rd_cm_choke(), rd_coil() and spiral_wrap().

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Added 10mm ceramic disc capacitors.
This commit is contained in:
Chris Palmer
2024-09-30 01:58:04 +01:00
parent 6eba75a41d
commit e4b1b686ff
9 changed files with 253 additions and 10 deletions
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2
vitamins/pcb.scad
View File

@@ -1170,6 +1170,8 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
if(show(comp, "rd_transistor")) rd_transistor(type = comp[4], value = comp[5], lead_positions = param(6, undef), z = param(7, 5), kind = param(8,"Transistor"));
// type, value, lead positions, z, kind
if(show(comp, "rd_box_cap")) rd_box_cap(type = comp[4], kind = comp[5], value = comp[6]);
if(show(comp, "rd_cm_choke")) rd_cm_choke(type = comp[4], value = comp[5]);
if(show(comp, "rd_coil")) rd_coil(type = comp[4], value = comp[5], pitch = param(6, undef));
if(show(comp, "link")) wire_link(l = comp[4], h = param(5, 1), d = param(6, 0.8), tail = param(7, 3), sleeve = param(8, false));
if(show(comp, "D_plug")) translate_z(d_pcb_offset(comp[4])) d_plug(comp[4], pcb = true);
if(show(comp, "molex_hdr")) molex_254(comp[4], param(5, 0), param(6, undef));

176
vitamins/radial.scad
View File

@@ -451,3 +451,179 @@ module rd_box_cap(type, kind, value) { //! Draw radial boxed film capacitor
resize([size.x * 0.9, size.z / 6])
text(value, halign = "left", valign = "top");
}
function rd_cm_choke_core(type) = type[1]; //! Core OD, ID, width, corner radius
function rd_cm_choke_seam(type) = type[2]; //! Overlapping semicircular seams to join the two halves of the core width and thickness
function rd_cm_choke_slot(type) = type[3]; //! Slot to hold central separator width, height, thickness
function rd_cm_choke_csep(type) = type[4]; //! Central separator thickness in slot, total thickness, height
function rd_cm_choke_wire(type) = type[5]; //! Wire positions, length and diameter
module rd_cm_choke(type, value) { //! Draw specified common mode choke.
vitamin(str("rd_cm_choke(", type[0], " ,\"", value, "\"): Common mode choke ", value));
core = rd_cm_choke_core(type);
seam = rd_cm_choke_seam(type);
slot = rd_cm_choke_slot(type);
csep = rd_cm_choke_csep(type);
wire = rd_cm_choke_wire(type);
or = core.x / 2;
ir = core.y / 2;
core_w = core.z;
core_r = core[3];
z = seam.y + or;
wire_r = wire[3] / 2;
w = or - ir;
$fs = fs; $fa = fa;
color(grey(90))
translate_z(z) {
rotate([90, 0, 0]) {
rotate_extrude()
translate([(ir + or) / 2, 0])
rounded_square([w, core_w], core_r, center = true);
for(h = [true, false])
hflip(h)
rotate(-90)
rotate_extrude(angle = 180)
translate([or, 0])
square([seam.y, seam.x]);
}
r = sqrt(sqr(or * cos(180 / r2sides(or))) - sqr(slot.z + csep.x / 2));
for(x = [-1, 1], z = [-1, 1])
translate([x * (csep.x / 2 + slot.z / 2), 0, z * (r - slot.y / 2)])
rotate([0, 90, 0])
rounded_rectangle([slot.y, slot.x, slot.z], core_r, center = true);
rotate([0, 90, 0]) {
rounded_rectangle([2 * ir, slot.x, csep.x], core_r, center = true);
rounded_rectangle([csep.z, slot.x, csep.y], core_r, center = true);
}
}
color(silver)
for(x = [-1, 1], y = [-1, 1])
translate([x * wire.x / 2, y * wire.y / 2]) {
solder(wire_r);
vflip()
cylinder(r = wire_r, h = wire.z, $fn = fn);
}
color(copper) {
wire_d = 2 * wire_r;
r = ir - wire_r;
cr = core_r + wire_r;
points = [
[-core_w / 2 + core_r, 0, 0],
[ core_w / 2 + wire_r, 0, 0], cr,
[ core_w / 2 + wire_r, w + wire_r, 0], cr,
[ 0, w + wire_d + seam.y * 2, 0], 7,
[-core_w / 2 - wire_r, w + wire_r, 0], cr,
[-core_w / 2 - wire_r, 0, 0], cr - eps,
[-core_w / 2 + core_r, 0, 0],
];
profile = segmented_path(rounded_path(points, $fn = fn), fs);
min_gap_angle = 2 * asin((slot.z + csep.x / 2 + wire_r) / r);
turns = floor((r * PI * (180 - min_gap_angle) / 180) / wire_d);
turn_angle = wire_d / (r * PI) * 180;
//turns = floor(((or + wire_r) * PI * (180 - min_gap_angle) / 180) / wire_d / 2);
//turn_angle = 2 * asin(wire_d / (or + wire_r));
gap_angle = 180 - turns * turn_angle;
path = arc_points(r, a = [90, 180 + gap_angle / 2, 180], al = 180 - gap_angle, $fn = turns * len(profile));
spiral = spiral_wrap(path, profile, path_length(path) / turns, turns);
tail = bezier_join([[wire.x / 2, wire.y / 2, -z - eps], [wire.x / 2, wire.y / 2, -z]], spiral, 1.5);
tilt = turn_angle * (or + wire_r) / 120;
outer_points = [
[ core_w / 2 - core_r - wire_d, -wire_d, 0],
[-core_w / 2 - wire_r - wire_d, -wire_d, 0], cr + wire_d,
[-core_w / 2 - wire_r, w + wire_r, tilt / 2], cr,
[ 0, w + wire_d + seam.y * 2, -tilt / 4], 7, // No idea why -tilt / 2.5 and not zero.
[ core_w / 2 + wire_r, w + wire_r, -tilt / 1.5], cr,
[ core_w / 2 + wire_r + wire_d, -wire_d, 0], cr + wire_d,
[ core_w / 2 - core_r - wire_d, -wire_d, 0],
];
outer_profile = segmented_path(rounded_path(outer_points, $fn = fn), fs);
outer_path = arc_points(r, a = [90, 180 + gap_angle / 2 + turn_angle / 2, 180], al = 180 - gap_angle, $fn = (turns - 1) * len(outer_profile));
outer_spiral = concat(spiral_wrap(outer_path, outer_profile, path_length(outer_path) / turns, turns), [spiral[len(spiral) - 1]]);
outer_tail = bezier_join([[wire.x / 2, -wire.y / 2, -z - eps], [wire.x / 2, -wire.y / 2, -z]], outer_spiral, 3);
wire_points = circle_points(wire_r, $fn = fn);
translate_z(z)
for(side = [-1, 1]) mirror([side < 0 ? 1 : 0, 0]){
color(copper)sweep(tail, wire_points);
sweep(outer_tail, wire_points);
}
}
}
function rd_coil_size(type) = type[1]; //! OD, ID, height, coil height
function rd_coil_wire(type) = type[2]; //! Wire pitch, diameter and length
function rd_coil_colour(type) = type[3]; //! Core colour
function rd_coil_turns(type) = type[4]; //! Number of turns
module rd_coil(type, value, pitch = undef) { //! Draw the specified vertical coil
size = rd_coil_size(type);
wire = rd_coil_wire(type);
pitch = is_undef(pitch) ? wire.x : pitch;
wire_d = wire.y;
wire_r = wire_d / 2;
vitamin(str("rd_coil(", type[0], " ,\"", value, "\"): Radial inductor ", size.z, "x", size.x, " ", value));
$fs = fs; $fa = fa;
end = (size.z - size[3]) / 2;
function sigmoid(x) = 1 / (1 + exp(-x));
z = end + size[3] / 2;
h = size[3] - wire_d;
color(rd_coil_colour(type)) {
cylinder(d = size.y, h = size.z);
for(z = [0, size.z - end])
translate_z(z)
cylinder(d = size.x, h = end);
}
turns = rd_coil_turns(type);
color(silver)
for(side = [-1, 1])
translate([side * pitch / 2, 0]) {
vflip()
cylinder(d = wire_d, h = wire.z, $fn = fn);
solder(wire.y / 2);
}
color(copper) {
r = size.y / 2 + wire_r;
sides = r2sides4n(r);
leadin = sides / 4;
total = sides * turns;
shortcut = 3;
spiral = [
for(i = [shortcut: total - shortcut])
let(a = 360 * i / sides,
j = i <= leadin ? leadin - i : i >= total - leadin ? i - (total - leadin) : 0,
R = r + j * wire_r / leadin
)
[R * cos(a), R * sin(a), (size[3] - wire.y) * i / total + end + wire_r]
];
half_spiral = [
for(i = [sides / 2 - shortcut : -1 : shortcut * 2])
let(a = 360 * i / sides, R = r + wire_d)
[R * cos(a), R * -sin(a), h * sigmoid((i - sides / 4) / 2) + end + wire_r]
];
path = bezier_join([[-pitch / 2, 0, -eps], [-pitch / 2, 0, 0]], bezier_join(bezier_join(half_spiral, spiral, 1), [[pitch / 2, 0, 0], [pitch / 2, 0, -eps]], 3), 3);
sweep(path, circle_points(wire_r, $fn = fn));
}
color("white")
translate_z(size.z)
linear_extrude(eps)
resize([size.x * 0.9, 0], auto = true)
text(value, halign = "center", valign = "center");
}

15
vitamins/radials.scad
View File

@@ -38,10 +38,11 @@ LDE10_20B = ["LDE10_20B","PSU", [53.8, 28.8, 19.0], 0.5, grey(20), [1.0, 0,
rd_modules = [HF33F, VCE03, LDE10_20B];
// Disks
ERZV07D471 = ["ERZV07D471", "Varistor", [6.5, 5.0, 8.0], [4.75, 3.1], [0.6, 1.4], [grey(20), grey(80)]];
6p4mm_disc = ["6p4mm_disc","Ceramic capacitor", [6.5, 2.1, 7.8], [5.0, 0.9], [0.6, 0.8], ["#C5702D", grey(20)]];
ERZV07D471 = ["ERZV07D471", "Varistor", [6.5, 5.0, 8.0], [4.75, 3.1], [0.6, 1.4], [grey(20), grey(80)]];
6p4mm_disc = ["6p4mm_disc", "Ceramic capacitor", [6.5, 2.1, 7.8], [5.0, 0.9], [0.6, 0.8], ["#C5702D", grey(20)]];
10mm_disc = ["10mm_disc", "Ceramic capacitor", [10, 4.25, 12], [7.72, 0], [0.64, 2.0], ["#BA9C16", grey(20)]];
rd_discs = [6p4mm_disc, ERZV07D471];
rd_discs = [6p4mm_disc, ERZV07D471, 10mm_disc];
// Transistors
TO92 = ["TO92", [5.0, 3.9, 4.5], [grey(20), grey(80)], [0.48, 0.48], [[-1,0], [0,0], [1,0]] ];
@@ -60,4 +61,12 @@ BOXC18x10x16 = ["BOXC18x10x16", [18, 10, 16, 0.25], 1.7, [12, 0.8, 0.4], [15, 0.
rd_box_caps = [BOXC18x5x11, BOXC18x10x16];
ATX_CM_CHOKE = ["ATX_CM_CHOKE", [17.4, 11.4, 9, 0.5], [2, 0.8], [11, 4.7, 0.8], [1, 2.4, 6.8], [inch(0.3), inch(0.4), 3, 0.65]];
rd_cm_chokes = [ATX_CM_CHOKE];
IND16x10 = ["IND16x10", [10, 6.7, 16, 10], [inch(0.5), 0.9, 3], grey(20), 10];
rd_coils = [IND16x10];
use <radial.scad>