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Moved gear block and updated README.md

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Added notes on printing to README.md

Moved gear block to opposite gear, as the previous didn't actually work.
This commit is contained in:
Stephen Carpenter
2021-01-11 18:55:29 -05:00
parent 5592405468
commit 943754c707
2 changed files with 17 additions and 10 deletions
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22
GearHinge.scad
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@@ -29,7 +29,7 @@ N2=N;
Module=1.45;
ShaftD=4.5;
ShaftD=4.2;
MeshD=Module*(N1+N2)/2;
SwingAdd = 1;
@@ -41,7 +41,8 @@ BackW=Swing+Module;
SideW=tol+BackW;
echo("Reference Diameter (MeshD): ", MeshD);
rot=90*$t;
//rot=90*$t;
rot=1;
//meshed(rot=rot);
@@ -78,11 +79,12 @@ module gear_hinge(
// gear_track_block - generates a bit of material to jam the gears at full
// extention to ensure that the gears don't pop out. This is only
// added to one gear.
module gear_track_block() {
difference() {
//CyS(r=MeshD/2 + Module/2, h=width/2, w1=245, w2=250);
CyS(r=MeshD - 4*Module, h=width/2, w1=245, w2=251);
CyS(r=ShaftD+1, h=width, w1=244, w2=271);
CyS(r=MeshD/2, h=width, w1=275, w2=310);
CyS(r=ShaftD+.5, h=width, w1=275, w2=310);
}
}
@@ -98,7 +100,7 @@ module gear_sector(meshd, width) {
// blue_gear - Gear on the left with the track block built into its back side.
module blue_gear() {
intersection() {
spur_gear(n=N1, w=width, m=Module, chamfer=30, helix_angle = helix_angle );
spur_gear(n=N1, w=width, m=Module, chamfer=30, helix_angle = helix_angle, add=-tol/2 );
difference() {
gear_sector(meshd=MeshD, width=width);
@@ -116,8 +118,6 @@ module blue_gear() {
translate([0,0,-width/2]) cube([1,MeshD/2,width]);
}
}
// Rear Block
gear_track_block();
// leaf arm
translate([2,11.6,0]) rotate([0,0,0]) leaf_arm(left=true, h=width+3.2);
}
@@ -129,13 +129,16 @@ module red_gear()
union() {
CyS(r=MeshD/2 - 2, h=width, w1=90, w2=190);
intersection() {
spur_gear(n=N2, w=width, m=Module, chamfer=30, helix_angle=-helix_angle);
spur_gear(n=N2, w=width, m=Module, chamfer=30, helix_angle=-helix_angle, add=-tol/2);
CyS(r=MeshD, h=width, w1=180, w2=-30);
}
// leaf arm
translate([-2,11.6,0]) leaf_arm(left=false, h=width+3.2);
// Rear Block
gear_track_block();
}
// Shaft Hole
cylinder(d=ShaftD, h=width+2, center=true);
@@ -145,6 +148,7 @@ module red_gear()
translate([0,-1.5+tol, -(width+1)/2]) cube([MeshD,1.5+tol,width+1]);
}
}
module leaf_arm(left=true, h, angle=false) {