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tune axles and gear size

master
Vitaliy Filippov 2015-11-18 15:44:13 +00:00
parent 883d6d95cb
commit 36ecdb9da7
1 changed files with 21 additions and 11 deletions
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32
torsen.scad
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@ -3,6 +3,7 @@ $fn = 100;
torsen_diff_36t();
module torsen_diff_36t() {
rotate([90, 0, 0])
union() {
difference() {
/*union() {
@ -15,7 +16,7 @@ module torsen_diff_36t() {
translate([0, 5, 0]) rotate([90, 0, 0]) cylinder(r=30, h=2, center=true, $fn=100);
translate([0, -5, 0]) rotate([90, 0, 0]) cylinder(r=30, h=2, center=true, $fn=100);
rotate([90, 0, 0]) cylinder(r=2.6, h=10, center=true);
translate([0, 4, 0]) rotate([90, 0, 0]) cylinder(r=4.2, h=8, center=true);
translate([0, 4, 0]) rotate([90, 0, 0]) cylinder(r=4.0, h=8, center=true);
}
translate([0, 0, 8]) difference() {
union() {
@ -25,7 +26,7 @@ module torsen_diff_36t() {
translate([-3.6, 8-3.6, 0]) cube([0.8, 3.6*2, 3.6*2], center=true);
translate([3.6, 8, 0]) rotate([90, 0, 90]) cylinder(r=3.6, h=0.8, center=true);
translate([3.6, 8-3.6, 0]) cube([0.8, 3.6*2, 3.6*2], center=true);
translate([0, 8, 0]) rotate([90, 0, 90]) axle(h=16, axlemesh=1.75);
translate([0, 8, 0]) rotate([90, 0, 90]) axleround(h=16, axlemesh=1.75);
}
}
translate([0, 0, -8]) difference() {
@ -36,12 +37,22 @@ module torsen_diff_36t() {
translate([-3.6, 8-3.6, 0]) cube([0.8, 3.6*2, 3.6*2], center=true);
translate([3.6, 8, 0]) rotate([90, 0, 90]) cylinder(r=3.6, h=0.8, center=true);
translate([3.6, 8-3.6, 0]) cube([0.8, 3.6*2, 3.6*2], center=true);
translate([0, 8, 0]) rotate([90, 0, 90]) axle(h=16, axlemesh=1.75);
translate([0, 8, 0]) rotate([90, 0, 90]) axleround(h=16, axlemesh=1.75);
}
}
}
}
module axleround(h = 24, axleradius = 2.4, axlemesh = 1.85) {
translate([0, 0, -h/2]) difference() {
cylinder($fn=16, r=axleradius, h=h);
translate([axlemesh/2, axlemesh/2, -1]) cube([axleradius, axleradius, h+2]);
translate([axlemesh/2, -axlemesh/2-axleradius, -1]) cube([axleradius, axleradius, h+2]);
translate([-axlemesh/2-axleradius, axlemesh/2, -1]) cube([axleradius, axleradius, h+2]);
translate([-axlemesh/2-axleradius, -axlemesh/2-axleradius, -1]) cube([axleradius, axleradius, h+2]);
}
}
module axle(h = 24, axleradius = 2.4, axlemesh = 1.85) {
union() {
cube([axleradius*2, axlemesh, h], center=true);
@ -49,8 +60,7 @@ module axle(h = 24, axleradius = 2.4, axlemesh = 1.85) {
}
}
module single_bevel(nteeth = 28)
{
module single_bevel(nteeth = 28) {
union() {
intersection() {
translate([0, 0, 1.5])
@ -69,17 +79,17 @@ module single_bevel(nteeth = 28)
module double_bevel_36t() {
intersection() {
union() {
translate([0, 0, 1.5])
translate([0, 0, 1.1])
linear_extrude(slices=5, height=2.5, scale=(36/2+1-2.5*tan(45))/(36/2+1))
gear_concat_flat(mm_per_tooth=3.4, number_of_teeth=36, backlash=2, clearance=0.8, trim_factor=0.7);
translate([0, 0, -1.5])
translate([0, 0, -1.1])
rotate([180, 0, 0])
linear_extrude(slices=5, height=2.5, scale=(36/2+1-2.5*tan(45))/(36/2+1))
gear_concat_flat(mm_per_tooth=3.4, number_of_teeth=36, backlash=2, clearance=0.8, trim_factor=0.7);
translate([0, 0, -4])
cylinder($fn=36*2, h=8, r=2.98*(36/2-1)/3.1415926);
translate([0, 0, -1.5])
cylinder($fn=36*2, h=3, r=2.98*(36/2+1)/3.1415926+0.5);
translate([0, 0, -3.6])
cylinder($fn=36*2, h=7.2, r=2.98*(36/2-1)/3.1415926);
translate([0, 0, -1.1])
cylinder($fn=36*2, h=2.2, r=2.98*(36/2+1)/3.1415926+0.5);
}
translate([0, 0, -8]) linear_extrude(slices=5, height=16)
gear_concat_flat(mm_per_tooth=2.98, number_of_teeth=36, pressure_angle=15, backlash=-0.5, clearance=-0.3);