159 lines
3.2 KiB
OpenSCAD
159 lines
3.2 KiB
OpenSCAD
include <../common.scad>
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include <./screws.scad>
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//slack = 0.5;
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//m3Diameter = 3.0;
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//m3Radius = m3Diameter/2.0;
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//m3ptr = m3Radius + slack;
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legWidth = 16;
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legLength = 16;
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legHeight = 60;
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legFrontThickness = 6;
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legSupportThickness = 4;
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legWingThickness = 4;
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legWingLength = 9;
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// 9.5 to account for space for inserting hex nuts at the top
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legWingWidth = 9.5+legSupportThickness;
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module legWing() {
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difference() {
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cube(size=[legWingLength, legWingThickness, legWingWidth]);
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union() {
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translate(v=[4,0,10])
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rotate(a=[90,0,0])
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cylinder(r=m3RadiusSlacked, h=20, center=true);
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translate(v=[14,0,10])
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rotate(a=[90,0,0])
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cylinder(r=m3RadiusSlacked, h=20, center=true);
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}
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}
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}
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module base() {
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difference() {
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cube(size=[25,25,legWingThickness]);
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union() {
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translate(v=[20,20,0])
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cylinder(r=m3RadiusSlacked, h=100, center=true);
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translate(v=[10,10,0])
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cylinder(r=m3RadiusSlacked, h=100, center=true);
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translate(v=[20,10,0])
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cylinder(r=m3RadiusSlacked, h=100, center=true);
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translate(v=[10,20,0])
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cylinder(r=m3RadiusSlacked, h=100, center=true);
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}
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}
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}
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module baseLeg(legHeight) {
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union() {
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difference() {
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cube(size=[16,16, legHeight]);
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union() {
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translate(v=[4,6,0])
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cube(size=[16, 16, legHeight]);
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// compensate for differences between leg/wing thickness
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translate(v=[legSupportThickness,legSupportThickness,0])
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cube(size=[legWidth,legWidth,legSupportThickness+10]);
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translate(v=[legSupportThickness,legSupportThickness,legHeight-legWingWidth])
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cube(size=[legWidth,legWidth,legSupportThickness+10]);
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}
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}
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translate(v=[16,0,0])
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legWing();
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translate(v=[16,0,legHeight])
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mirror(v=[0,0,1]) {
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legWing();
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}
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mirror(v=[1,-1,0]) {
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translate(v=[16,0,0])
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legWing();
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translate(v=[16,0,legHeight])
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mirror(v=[0,0,1]) {
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legWing();
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}
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}
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}
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base();
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translate(v=[0,0,legHeight-legWingThickness])
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base();
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}
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*baseLeg(180);
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module leg(ui) {
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assert(ui > 0);
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legLength = 20 + (ui-1)*10;
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difference() {
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baseLeg(legLength);
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union() {
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intersection() {
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union() {
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for (i = [1:ui-2]) {
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translate(v=[0,10,(i+1)*10])
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rotate(a=[0,90,0])
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*cylinder(h = 100, r = m3ptr, $fn=32, center=true);
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translate(v=[10,3,(i+1)*10])
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rotate(a=[90,-10,0])
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m4HexNutPocketNegative();
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}
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}
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translate(v=[-1,-1,legWingWidth])
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cube(size=[1000,1000,legLength-2*legWingWidth]);
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}
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translate(v=[0,10,10])
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rotate(a=[0,90,0])
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cylinder(h = 100, r = m3ptr, $fn=32, center=true);
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translate(v=[0,10,ui*10])
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rotate(a=[0,90,0])
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cylinder(h = 100, r = m3ptr, $fn=32, center=true);
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translate(v=[10,0,10])
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rotate(a=[90,0,0])
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cylinder(h = 100, r = m3ptr, $fn=32, center=true);
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translate(v=[10,0,ui*10])
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rotate(a=[90,0,0])
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cylinder(h = 100, r = m3ptr, $fn=32, center=true);
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}
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}
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}
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//mirror(v=[1,0,0])
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leg(20);
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