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Added License.txt and tweaked gear blocks

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Preparing for release; added License.txt and attribution

Small tweaks to gear cuts and side walls to close the gap.
This commit is contained in:
Stephen Carpenter
2021-01-10 11:01:50 -05:00
committed by sjc
parent df855a9875
commit b1beb41416
2 changed files with 60 additions and 17 deletions
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56
GearHinge.scad
View File

@@ -1,3 +1,9 @@
/* GearHinge.scad - Parametric geared hinge for FDM manufacturing
Copyright (c) 2021 Stephen J. Carpenter <sjc@carpanet.net>
License: MIT. See License.txt for details.
*/
use <PolyGear/PolyGear.scad>
include <PolyGear/PolyGearBasics.scad>
use <PolyGear/shortcuts.scad>
@@ -35,9 +41,10 @@ SideW=tol+BackW;
echo("Reference Diameter (MeshD): ", MeshD);
//rot=360/N1*$t;
//rot=90-90*$t;
rot=45;
//rot=90;
//rot=90*$t;
//rot=20*$t +75;
rot=0;
//rot=00;
//axis_angle = -50;
//meshed(rot=rot);
@@ -72,20 +79,28 @@ 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/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);
}
}
// gear_sector - Generates the shape of gear to be kept.
// currently only used on the blue_gear.
// xxx: red_gear maybe should be refactored to use it?
module gear_sector(meshd, width) {
CyS(r=meshd, h=width, w1=215, w2=00);
CyS(r=meshd/2 - 2, h=width, w1=-1, w2=90);
}
// blue_gear - Gear on the left with the track block built into its back side.
module blue_gear() {
render() {
intersection() {
spur_gear(n=N1, w=width, m=Module, chamfer=30, helix_angle = helix_angle );
difference() {
@@ -94,23 +109,27 @@ module blue_gear() {
// Shaft Hole
cylinder(d=ShaftD, h=width+2, center=true);
// Block limit - back
// Block limit - side
translate([-BackW+2*tol,-MeshD/2,0]) cube([MeshD,MeshD,width], center=true);
// Block Limit - back
translate([-MeshD,-1.5+tol, -(width+1)/2])
cube([MeshD,1.5+tol,width+1]);
// Block limit - front
translate([0,0,-width/2]) cube([1,MeshD/2,width]);
}
}
// Rear Block
gear_track_block();
}
// leaf arm
//translate([MeshD/2 - 2*Module,11,0]) cube([4,20,width+1], center=true);
translate([2,11.6,0]) rotate([0,0,0]) leaf_arm(left=true, h=width+4);
}
// Red Gear - Gear on the right.
module red_gear()
{
render() difference() {
difference() {
union() {
CyS(r=MeshD/2 - 2, h=width, w1=90, w2=190);
intersection() {
@@ -124,10 +143,11 @@ module red_gear()
}
// Shaft Hole
cylinder(d=ShaftD, h=width+2, center=true);
// Block limit -front
//translate([-Module/2,1,-width/2]) cube([Module,MeshD/2,width]);
// Block limit
// Block limit - side
translate([BackW-2*tol,-MeshD/2,0]) cube([MeshD,MeshD,width+1], center=true);
// Block limit - front
translate([0,-1.5+tol, -(width+1)/2]) cube([MeshD,1.5+tol,width+1]);
}
}
@@ -159,6 +179,8 @@ module round_case_inner(meshd, shaftd, width, tol) {
}
}
// round_case - generates the back shell of the hinge, which includes the axis
// posts of the hinges.
module round_case(
d=ShaftD,
tol=.25,
@@ -166,14 +188,14 @@ module round_case(
MeshD=MeshD,
Module=Module,
SwingAdd=1,
WallD=1.5,
spine=true,
WallD=1.2,
spine=false,
full=true)
{
Swing = MeshD/2 + Module + SwingAdd;
BackW=WallD/2 + Swing+Module+1;
SideW=tol -1 + BackW-MeshD/2;
SideW=tol + BackW-MeshD/2;
difference() {
intersection() {
@@ -189,7 +211,6 @@ module round_case(
else {
hull() round_case_inner(meshd=MeshD, shaftd=d, width=width, tol=tol);
}
//color("purple") translate([0,0,11]) cube([50,50,20], center=true);
if (full) {
echo("full is true. Not splitting.");
@@ -210,7 +231,8 @@ module round_case(
cylinder(d=d+3*tol, h=WallD+tol, center=true);
}
translate([xi*(BackW/2 - SideW +4),-WallD/2]) cube([SideW+1+tol,WallD,width+3+2*tol], center=true);
translate([xi*(SideW/2+2*tol+Module/2),-WallD/2])
cube([SideW+2*tol+Module+1,WallD,width+4], center=true);
}
}
}

21
License.txt Normal file
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@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2021 Stephen J. Carpenter <sjc-gearhinge@carpanet.net>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.