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Improved proportions and clearances

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Dejvino 2021-01-18 21:04:14 +01:00
parent f1c4576519
commit a7c184e6cb
1 changed files with 60 additions and 28 deletions
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88
strap_link.scad
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@ -1,6 +1,6 @@
links_count=6; // [1..20] links_count=6; // [1..20]
include_terminal=true; // [true,false] include_terminal=true; // [true,false]
export=4; // [0:5] export=5; // [0:5]
MODEL_DEMO=0; MODEL_DEMO=0;
MODEL_LINKS=1; MODEL_LINKS=1;
@ -138,7 +138,7 @@ module clip_ratcheting(ratchet_length=20) {
pin_diam=get_link_pin_diameter(); pin_diam=get_link_pin_diameter();
slot_slack=get_link_socket_slack(); slot_slack=get_link_socket_slack();
size=[clip_size.x+socket_size.x, clip_size.y, clip_size.z]; size=[clip_size.x+socket_size.x, clip_size.y, clip_size.z];
slot_size=[clip_size.x+slot_slack.x, size.y+1, pin_diam+slot_slack.z]; slot_size=[clip_size.x+slot_slack.x + 0.2, size.y+1, pin_diam+slot_slack.z];
entry_size=[slot_size.x-5, clip_size.y+1, clip_size.z]; entry_size=[slot_size.x-5, clip_size.y+1, clip_size.z];
//right(clip_size.x/2) //right(clip_size.x/2)
module hook() { module hook() {
@ -158,7 +158,7 @@ module clip_ratcheting(ratchet_length=20) {
scale([-1, 1, 1]) hook(); scale([-1, 1, 1]) hook();
} }
wall=2; wall=2;
tooth_size=[2, 2, 3]; tooth_size=[2, 3, 3];
module tooth() { module tooth() {
s=[tooth_size.x, tooth_size.z, tooth_size.y]; s=[tooth_size.x, tooth_size.z, tooth_size.y];
up(tooth_size.z/2) xrot(-90) right_triangle(s); up(tooth_size.z/2) xrot(-90) right_triangle(s);
@ -187,29 +187,35 @@ module clip_ratcheting(ratchet_length=20) {
difference() { difference() {
cube([ratchet_length, clip_size.y, clip_size.z], center=true); cube([ratchet_length, clip_size.y, clip_size.z], center=true);
up(wall/2) cube([ratchet_length, clip_size.y-wall*2, clip_size.z], center=true); up(wall/2) cube([ratchet_length, clip_size.y-wall*2, clip_size.z], center=true);
right(ratchet_length/2+1) {
slideRailGuide(groove=true);
scale([1,-1,1]) slideRailGuide(groove=true);
}
} }
teethFwd(); teethFwd();
teethBack(); teethBack();
} }
} }
ratchet_tooth_count=3; ratchet_tooth_count=3;
ratchet_wall=1; ratchet_wall=3;
ratchet_slack=0.3;
rail_slack=0.2;
module ratchetTeethFront() { module ratchetTeethFront() {
module ratchetButton() { module ratchetButton() {
size=[3,wall*4,2]; size=[8,wall*4,4];
up(4) fwd(wall*2 - ratchet_wall) cuboid(size, fillet=1, edges=EDGES_FRONT); up(size.z+1) fwd(wall*2 - ratchet_wall) cuboid(size, fillet=1, edges=EDGES_FRONT);
up(2) back(wall/2) cube([size.x, wall, tooth_size.z + size.z], center=true); up(2) back(ratchet_wall/2) cube([size.x, ratchet_wall, tooth_size.z + size.z], center=true);
} }
fwd((clip_size.y-wall*2)/2 - tooth_size.y - 0.5) fwd((clip_size.y-wall*2)/2 - tooth_size.y - ratchet_slack)
left(ratchet_length) { left(ratchet_length) {
for (i=[0:ratchet_tooth_count-1]) { for (i=[0:ratchet_tooth_count-1]) {
right(i*tooth_size.x) scale([-1,-1,1]) tooth(); right(i*tooth_size.x) scale([-1,-1,0.8]) tooth();
} }
ratchetButton(); ratchetButton();
} }
module ratchetWall() { module ratchetWall() {
up(tooth_size.z/2) left(ratchet_length/2 + wall - wall/2) fwd(clip_size.y/2-wall-tooth_size.y-ratchet_wall) up(tooth_size.z/2) left(ratchet_length/2 + wall - wall/2) fwd(clip_size.y/2-wall-tooth_size.y-ratchet_wall/2 - ratchet_slack)
down(wall/2+0.5) cube([ratchet_length + wall, ratchet_wall, tooth_size.z], center=true); down(wall/2+0.5) cube([ratchet_length + wall, ratchet_wall, tooth_size.z], center=true);
} }
ratchetWall(); ratchetWall();
@ -218,21 +224,47 @@ module clip_ratcheting(ratchet_length=20) {
scale([1,-1,1]) ratchetTeethFront(); scale([1,-1,1]) ratchetTeethFront();
} }
module ratchetRight() { module ratchetRight() {
left(wall/2) cube([wall, clip_size.y, clip_size.z], center=true); left(wall) cube([wall*2, clip_size.y + rail_slack*2, clip_size.z], center=true);
ratchetTeethFront(); ratchetTeethFront();
ratchetTeethBack(); ratchetTeethBack();
} }
module slideRailGuide(groove) {
size=[ratchet_length, wall, wall];
fwd(clip_size.y/2 + rail_slack)
left(size.x/2) scale(groove?1.5:1) cuboid(size, fillet=0.5);
}
module slideRailLeft() {
size=[ratchet_length, clip_size.y/2 - ratchet_wall*2 - wall - ratchet_slack - tooth_size.y, clip_size.z];
right(size.x/2) cube(size, center=true);
}
module slideRailRight() {
size=[ratchet_length + 3, wall*1.5, clip_size.z];
module railFront() {
fwd(clip_size.y/2 + size.y/2 + rail_slack) left(size.x/2)
cuboid(size, fillet=1, edges=EDGES_FRONT);
slideRailGuide(groove=false);
}
module railBack() {
scale([1, -1, 1]) railFront();
}
railFront();
railBack();
}
if (is_model(MODEL_CLIP_RATCHETING_A) || is_model(MODEL_CLIP_RATCHETING)) { if (is_model(MODEL_CLIP_RATCHETING_A) || is_model(MODEL_CLIP_RATCHETING)) {
left(ratchet_length + wall + 1) { left(ratchet_length + wall + 1) {
hookLeft(); hookLeft();
left(0.5) ratchetLeft(); left(0.1) {
ratchetLeft();
slideRailLeft();
}
} }
} }
if (is_model(MODEL_CLIP_RATCHETING_B) || is_model(MODEL_CLIP_RATCHETING)) { if (is_model(MODEL_CLIP_RATCHETING_B) || is_model(MODEL_CLIP_RATCHETING)) {
ratchetRight(); ratchetRight();
hookRight(); hookRight();
slideRailRight();
} }
} }
@ -249,23 +281,23 @@ if (!is_undef(validation)) {
right(2*segment_size.x) link(); right(2*segment_size.x) link();
} }
} }
} else if (!is_undef(xray)) {
intersection() {
cube([1000, 1000, 1000]);
for (i = [0:links_count-1]) {
right(i*segment_size.x) link();
}
}
} else { } else {
if (is_model(MODEL_CLIP)) { intersection () {
left(get_link_clip_size().x) clip(); if (!is_undef(xray)) {
} down(50) cube([100, 100, 100], center=true);
if (is_model(MODEL_CLIP_RATCHETING) || is_model(MODEL_CLIP_RATCHETING_A) || is_model(MODEL_CLIP_RATCHETING_B)) { }
left(get_link_clip_size().x) clip_ratcheting(); union() {
} if (is_model(MODEL_CLIP)) {
if (is_model(MODEL_LINKS)) for (i = [0:links_count-1]) { left(get_link_clip_size().x) clip();
terminal=(i==links_count-1) && include_terminal; }
right(i*segment_size.x) link(terminal=terminal); if (is_model(MODEL_CLIP_RATCHETING) || is_model(MODEL_CLIP_RATCHETING_A) || is_model(MODEL_CLIP_RATCHETING_B)) {
left(get_link_clip_size().x) clip_ratcheting();
}
if (is_model(MODEL_LINKS)) for (i = [0:links_count-1]) {
terminal=(i==links_count-1) && include_terminal;
right(i*segment_size.x) link(terminal=terminal);
}
}
} }
} }