commit Giles' regular shapes and metric fasteners
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Timothy Schmidt
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111
metric_fastners.scad
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111
metric_fastners.scad
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/*
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* OpenSCAD Metric Fastners Library (www.openscad.org)
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* Copyright (C) 2010-2011 Giles Bathgate
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License,
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* LGPL version 2.1, or (at your option) any later version of the GPL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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$fn=50;
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apply_chamfer=true;
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module cap_bolt(dia,len)
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{
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e=1.5*dia;
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h1=1.25*dia;
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cylinder(r=dia/2,h=len);
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translate([0,0,-h1]) cylinder(r=e/2,h=h1);
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}
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module csk_bolt(dia,len)
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{
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h1=0.6*dia;
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h2=len-h1;
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cylinder(r=dia/2,h=h2);
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cylinder(r1=dia,r2=dia/2,h=h1);
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}
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module washer(dia)
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{
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t=0.1*dia;
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difference()
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{
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cylinder(r=dia,h=t);
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translate([0,0,-t/2])cylinder(r=dia/2,h=t*2);
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}
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}
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module flat_nut(dia)
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{
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m=0.8*dia;
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e=1.8*dia;
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c=0.2*dia;
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difference()
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{
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cylinder(r=e/2,h=m,$fn=6);
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translate([0,0,-m/2])cylinder(r=dia/2,h=m*2);
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if(apply_chamfer)
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translate([0,0,c])cylinder_chamfer(e/2,c);
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}
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}
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module bolt(dia,len)
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{
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e=1.8*dia;
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k=0.7*dia;
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c=0.2*dia;
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difference()
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{
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cylinder(r=e/2,h=k,$fn=6);
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if(apply_chamfer)
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translate([0,0,c])cylinder_chamfer(e/2,c);
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}
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cylinder(r=dia/2,h=len);
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}
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module cylinder_chamfer(r1,r2)
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{
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t=r1-r2;
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p=r2*2;
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rotate_extrude()
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difference()
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{
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translate([t,-p])square([p,p]);
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translate([t,0])circle(r2);
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}
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}
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module chamfer(len,r)
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{
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p=r*2;
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linear_extrude(height=len)
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difference()
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{
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square([p,p]);
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circle(r);
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}
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}
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union()
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{
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//csk_bolt(3,14);
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//washer(3);
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//flat_nut(3);
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//bolt(4,14);
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//cylinder_chamfer(8,1);
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//chamfer(5,1);
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}
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188
regular_shapes.scad
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188
regular_shapes.scad
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@ -0,0 +1,188 @@
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/*
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* OpenSCAD Shapes Library (www.openscad.org)
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* Copyright (C) 2010-2011 Giles Bathgate
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License,
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* LGPL version 2.1, or (at your option) any later version of the GPL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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// 2D regular shapes
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module triangle(radius)
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{
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o=radius/2; //equivalent to radius*sin(30)
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a=radius*sqrt(3)/2; //equivalent to radius*cos(30)
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polygon(points=[[-a,-o],[0,radius],[a,-o]],paths=[[0,1,2]]);
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}
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module reg_polygon(sides,radius)
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{
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function dia(r) = sqrt(pow(r*2,2)/2); //sqrt(r*2^2/2) if only we had an exponention op
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if(sides<2) square([radius,0]);
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if(sides==3) triangle(radius);
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if(sides==4) square([dia(radius),dia(radius)],center=true);
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if(sides>4) circle(r=radius,$fn=sides);
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}
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module pentagon(radius)
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{
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reg_polygon(5,radius);
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}
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module hexagon(radius)
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{
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reg_polygon(6,radius);
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}
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module heptagon(radius)
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{
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reg_polygon(7,radius);
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}
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module octagon(radius)
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{
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reg_polygon(8,radius);
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}
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module nonagon(radius)
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{
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reg_polygon(9,radius);
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}
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module decagon(radius)
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{
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reg_polygon(10,radius);
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}
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module hendecagon(radius)
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{
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reg_polygon(11,radius);
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}
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module dodecagon(radius)
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{
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reg_polygon(12,radius);
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}
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//3D regular shapes
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module cone(height, radius, center = false)
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{
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cylinder(height, radius, 0, center);
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}
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module oval_prism(height, rx, ry, center = false)
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{
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scale([1, rx/ry, 1]) cylinder(h=height, r=ry, center=center);
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}
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module oval_tube(height, rx, ry, wall, center = false)
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{
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difference() {
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scale([1, ry/rx, 1]) cylinder(h=height, r=rx, center=center);
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translate([0,0,-height/2]) scale([(rx-wall)/rx, (ry-wall)/rx, 2]) cylinder(h=height, r=rx, center=center);
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}
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}
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module cylinder_tube(height, radius, wall, center = false)
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{
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tubify(radius,wall)
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cylinder(h=height, r=radius, center=center);
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}
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//Tubifies any regular prism
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module tubify(radius,wall)
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{
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difference()
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{
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child(0);
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translate([0, 0, -0.1]) scale([(radius-wall)/radius, (radius-wall)/radius, 2]) child(0);
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}
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}
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module triangle_prism(height,radius)
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{
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linear_extrude(height=height) triangle(radius);
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}
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module triangle_tube(height,radius,wall)
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{
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tubify(radius,wall) triangle_prism(height,radius);
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}
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module pentagon_prism(height,radius)
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{
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linear_extrude(height=height) pentagon(radius);
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}
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module pentagon_tube(height,radius,wall)
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{
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tubify(radius,wall) pentagon_prism(height,radius);
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}
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module hexagon_prism(height,radius)
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{
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linear_extrude(height=height) hexagon(radius);
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}
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module heptagon_prism(height,radius)
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{
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linear_extrude(height=height) heptagon(radius);
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}
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module octagon_prism(height,radius)
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{
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linear_extrude(height=height) octagon(radius);
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}
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module nonagon_prism(height,radius)
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{
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linear_extrude(height=height) nonagon(radius);
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}
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module decagon_prism(height,radius)
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{
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linear_extrude(height=height) decagon(radius);
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}
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module hendecagon_prism(height,radius)
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{
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linear_extrude(height=height) hendecagon(radius);
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}
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module dodecagon_prism(height,radius)
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{
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linear_extrude(height=height) dodecagon(radius);
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}
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module torus(outerRadius, innerRadius)
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{
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r=(outerRadius-innerRadius)/2;
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rotate_extrude() translate([innerRadius+r,0,0]) circle(r);
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}
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module triangle_pyramid(radius)
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{
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o=radius/2; //equivalent to radius*sin(30)
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a=radius*sqrt(3)/2; //equivalent to radius*cos(30)
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polyhedron(points=[[-a,-o,-o],[a,-o,-o],[0,radius,-o],[0,0,radius]],triangles=[[0,1,2],[1,2,3],[0,1,3],[0,2,3]]);
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}
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module square_pyramid(width,height,depth)
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{
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w=width/2;
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h=height/2;
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polyhedron(points=[[-w,-h,0],[-w,h,0],[w,h,0],[w,-h,0],[0,0,depth]],triangles=[[0,1,2],[0,1,4],[0,1,3],[0,2,3]]);
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}
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