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Fix clutch gear

master
Vitaliy Filippov 2014-03-26 19:56:11 +00:00
parent 36aa3849bc
commit 4735bbc937
1 changed files with 14 additions and 33 deletions
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47
gear-v3.scad
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@ -80,8 +80,9 @@
// Standard 16t gear: root_radius=6.8 outer_radius=7.9 (mm_per_tooth =~ 3.05 by root)
// Standard 8t gear: root_radius=2.8 outer_radius=4.9 (mm_per_tooth =~ 3.05 by root)
// Gear radius:
//outer_radius = mm_per_tooth*(n_teeth/2+1)/3.1415926;
// Formulas for gear radiuses:
//outer_radius = mm_per_tooth*(n_teeth/2+1)/3.1415926 - clearance;
//root_radius = mm_per_tooth*(n_teeth/2-1)/3.1415926;
//-------------------------------------------
// Overview of this file
@ -106,16 +107,15 @@ translate([0, 0, 16])
/* Planetary ring gear with both inner and outer 40 teeth */
planetary_ring_gear(plane_height=1);
//planetary_ring_gear(plane_height=1);
/* 40-teeth planetary ring gear with clutch */
//planetary_ring_gear_with_clutch();
/* Standard-16-teeth-like clutch gear */
/* Solid clutch gear, like standard 16-teeth */
//clutchTeeth(); // has surface problem
//clutchGear(32);
clutchGear(32);
/* Gear with clutch fully offset to one side */
@ -559,12 +559,12 @@ module clutchGear(number_of_teeth) {
difference() {
union() {
gear(thickness=3.7, mm_per_tooth=3.05, number_of_teeth=number_of_teeth, clearance = -0.1);
translate([0, 0, 1]) cylinder($fn=100, h=5.8-1, r=6.8);
translate([0, 0, 1]) cylinder($fn=number_of_teeth*2, h=5.8-1, r=6.8);
translate([0, 0, -2]) cylinder($fn=number_of_teeth*2, h=2+1, r=3.7);
}
difference() {
translate([0, 0, 1.8]) cylinder($fn=number_of_teeth*2, h=4.1, r=5.8);
translate([0, 0, 1.8]) cylinder($fn=number_of_teeth*2, h=4.1, r=3.3);
translate([0, 0, 1.7]) cylinder($fn=number_of_teeth*2, h=4.1+0.2, r=3.3);
}
translate([0, 0, -3]) cylinder($fn=number_of_teeth*2, h=10, r=2.5);
translate([0, 0, -2.2]) cylinder($fn=number_of_teeth*2, h=1, r=3.1);
@ -578,34 +578,15 @@ module clutchGear(number_of_teeth) {
// Clutch: 0.7 from the top, 1.5 width, 1 thickness
module clutchTeeth() {
polyhedron(
points=[
[5.8, -0.8, 1.8], // 5.8+0.1, 1.8-0.1, чтобы утопить
[5.8, 0.8, 1.8],
[4.8, -0.8, 1.8],
[4.8, 0.8, 1.8],
[5.8, 0, 5],
[4.8, 0, 5],
],
faces=[
[0, 1, 2],
[2, 1, 3],
[0, 4, 1],
[0, 2, 4],
[4, 2, 5],
[3, 1, 4],
[4, 5, 3],
[2, 3, 5],
]
);
/* translate([5.8, 0, 1.8])
translate([5.8+0.1, 0, 1.8-0.1])
rotate([0, -90, 0])
linear_extrude(height = 1, center = false)
linear_extrude(height = 1+0.1, center = false)
polygon([
[0, -0.8], // 5.8+0.1, 1.8-0.1, чтобы утопить
[0, -0.8],
[0, 0.8],
[3.2, 0],
]);*/
[3.2+0.1, 0.1],
[3.2+0.1, -0.1],
]);
}
module myGear(n_teeth) {