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Just went for it! Added an experimental quarter version with registration notches in the quarters. Will experiment securing with locktite and determine how waterproof the joins are. Currently having a difficult time getting the spirals to print on the Ender 5 Plus in PETG. Had it work a few times then a whole lot of variables changed and now it's jamming consistently in the same places. Made some more changes to test but while I wait I wanted to make a quartered 50ft spiral I can print on my Tiertime printer with a 130mm bed. 

TODO: quarter the 100ft spiral
This commit is contained in:
mmcwilliams 2020-07-09 09:10:15 -04:00
parent c429f57a94
commit 192a935972
1 changed files with 130 additions and 6 deletions
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136
50ft_v3/gnal_50ft.scad
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@ -77,6 +77,123 @@ module gnal_50ft_spiral (spiral_count = 40, od = 215.75) {
}
}
module gnal_50ft_spiral_quarter_full (spiral_count = 40, od = 215.75) {
outer_d = 215;
outer_d_inside = 209;
outer_h = 7.5;
spoke_len = 81;
spoke_w = 3;
spoke_h = 4.2 + 3;
spoke_2_len = 43;
//override spoke count
echo(SPOKE_COUNT);
translate([0, 0, -3.6]) difference () {
cylinder(r = outer_d / 2, h = spoke_h, center = true, $fn = 500);
cylinder(r = outer_d_inside / 2, h = outer_h + 1, center = true, $fn = 500);
}
difference () {
gnal_spiral_core();
//rounded spoke voids
for (i = [0 : SPOKE_COUNT - 1]) {
rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
translate([0, 26.75, 0]) {
cylinder(r = 2, h = 20, center = true, $fn = 40);
}
}
}
}
//main spokes
for (i = [0 : SPOKE_COUNT - 1]) {
rotate([0, 0, i * (360 / SPOKE_COUNT)]) {
translate([(spoke_len / 2) + (48 / 2), 0, -3.6]) {
if (i % 3 == 0 && i % 6 != 0) { //phew!
cube([spoke_len, spoke_w * 2, spoke_h], center = true);
} else {
cube([spoke_len, spoke_w, spoke_h], center = true);
}
}
}
}
//secondary spokes
for (i = [0 : SPOKE_COUNT - 1]) {
rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
translate([(outer_d / 2) - (spoke_2_len / 2) - 2, 0, -3.6]) {
cube([spoke_2_len, spoke_w, spoke_h], center = true);
}
}
}
//spoke cross bars
for (i = [0 : SPOKE_COUNT - 1]) {
rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT)]) {
translate([63, 0, -3.6]) {
rotate([0, 0, 20]) {
cube([ spoke_w, 18, spoke_h], center = true);
}
}
}
}
translate([0, 0, -.1]) {
rotate([0, 0, -90]) {
difference () {
film_guide(spiral_count);
for (i = [0 : SPOKE_COUNT - 1]) {
rotate([0, 0, (i + 0.5) * (360 / SPOKE_COUNT) ]) {
translate([(spoke_len / 4) + (48 / 2), 0, -3.6]) triangle_void();
}
}
for (i = [0 : (SPOKE_COUNT * 2) - 1]) {
rotate([0, 0, (i + 0.5) * (360 / (SPOKE_COUNT * 2)) ]) {
translate([(outer_d / 2) - (spoke_2_len / 2) + 1 , 0, -3.6]) triangle_void_2(i);
}
}
}
}
}
}
module gnal_50ft_spiral_quarter (quarter = "a") {
module notch (NOTCH = 5) {
cube([NOTCH, NOTCH, 5], center = true);
translate([0, 0, (5 / 2) + (1 / 2)]) rotate([0, 0, 45]) cylinder(r1 = NOTCH / 1.4, r2 = 0.1, h = 1, center = true, $fn = 4);
}
module quarter () {
NOTCH = 3;
NOTCH_H = -5;
NOTCHES = 7;
OFFSET = 60;
difference () {
cube([220, 220, 220], center = true);
for (i = [0 : NOTCHES - 1]) {
translate([OFFSET - (i * (220 / NOTCHES)), -110, NOTCH_H]) rotate([0, 0, 45]) notch(NOTCH);
}
}
for (i = [0 : NOTCHES - 2]) {
translate([-110, OFFSET - (i * (220 / NOTCHES)), NOTCH_H]) rotate([0, 0, 45]) notch(NOTCH);
}
}
intersection () {
rotate([0, 0, 45]) gnal_50ft_spiral_quarter_full();
if (quarter == "a") {
rotate([0, 0, 0]) translate([110, 110, 0]) quarter();
} else if (quarter == "b") {
rotate([0, 0, 90]) translate([110, 110, 0]) quarter();
} else if (quarter == "c") {
rotate([0, 0, 180]) translate([110, 110, 0]) quarter();
} else if (quarter == "d") {
rotate([0, 0, 270]) translate([110, 110, 0]) quarter();
}
}
}
module gnal_50ft_top () {
H = 5;
center_d = 53;
@ -93,7 +210,7 @@ module gnal_50ft_top () {
difference () {
union () {
cylinder(r = center_d / 2, h = H, center = true, $fn = 100);
for (i = [0 : spokes]) {
for (i = [0 : spokes - 1]) {
rotate([0, 0, i * (360 / spokes)]) translate([0, outer_d / 4, 0]) cube([spoke_w, (outer_d / 2) - 1, H], center = true);
}
}
@ -104,7 +221,7 @@ module gnal_50ft_top () {
rotate([0, 0, (i * 90) + 45]) translate([0, hole_spacing / 2, 0]) cylinder(r = hole_d / 2, h = H + 1, center = true);
}
//rounding of center cylinder
for (i = [0 : spokes]) {
for (i = [0 : spokes - 1]) {
rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([-2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([2.75, 26.5, 0]) cylinder(r = 2, h = H+1, center = true, $fn = 40);
rotate([0, 0, (i + 0.5) * (360 / spokes)]) translate([0, 26.5, 0]) cube([5, 4, H + 1], center = true);
@ -125,7 +242,7 @@ module gnal_50ft_top () {
cylinder(r = (inner_d / 2) - 5, h = H + 1, center = true, $fn = 200);
}
//rounded cross connectors
for (i = [0 : spokes]) {
for (i = [0 : spokes - 1]) {
rotate([0, 0, i * (360 / spokes)]) translate([0, (inner_d / 2) - (spoke_w / 2), 0]) difference() {
cylinder(r = 6.5, h = H, center = true);
translate([6.25, 6, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
@ -143,7 +260,7 @@ module gnal_50ft_top () {
translate([0, 0, 4 + 1 + 2.25]) spacer_ridges();
}
//rounded outer ring connectors
for (i = [0 : spokes]) {
for (i = [0 : spokes - 1]) {
rotate([0, 0, i * (360 / spokes)]) translate([0, 205 / 2, 0]) difference () {
cube([13, 9, H], center = true);
translate([6.2, -4.2, 0]) cylinder(r = 4, h = H + 1, center = true, $fn = 60);
@ -152,17 +269,24 @@ module gnal_50ft_top () {
}
}
FN = 200;
$fn = FN;
module film_guide (rotations = 40, id = 45.55 - .5, spacing = 2.075) {
spiral(rotations, id, spacing, $fn);
}
PART="spiral";
PART="quarter_a";
if (PART == "spiral") {
gnal_50ft_spiral();
} else if (PART == "quarter_a") {
gnal_50ft_spiral_quarter("a");
} else if (PART == "quarter_b") {
gnal_50ft_spiral_quarter("b");
} else if (PART == "quarter_c") {
gnal_50ft_spiral_quarter("c");
} else if (PART == "quarter_d") {
gnal_50ft_spiral_quarter("d");
} else if (PART == "top") {
gnal_50ft_top();
} else if (PART == "spacer") {