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//vxb linear motion pillow block
//block http://www.vxb.com/page/bearings/PROD/12mmLinearMotionSystems/Kit8512
//bearing insert http://www.bergab.ru/price/img/samick/LME12OP_samick.jpg
include <MCAD/materials.scad>
module LME12UU_OP(){
ID=12;
OD=22;
L=32;
Angle=78;
//keyhole polygon, Angle is the included angle
x=OD*cos(Angle/2);
y=OD*sin(Angle/2);
color(Stainless) linear_extrude(height=L){
difference(){
circle(OD/2);
union() {
circle(ID/2);
rotate(-90) polygon(points=[[0,0], [x,-y], [x, y]]);
}
}
}
}
module truck(){
D=22; //one would think this would be on the datasheet
h=15;
E=21;
W=42;
L=36;
F=28;
h1=8;
Angle=80;
B=30.5;
C=26;
S=5;
hole_depth=10;
//keyhole polygon, Angle is the included angle
x=F*cos(Angle/2);
y=F*sin(Angle/2);
union(){
color(Aluminum) render() difference(){
translate([-E, -(F-h), -L/2])
linear_extrude(height=L) difference(){
square([W,F]);
translate([E,F-h])
union() {
circle(D/2);
rotate(-90) polygon(points=[[0,0], [x,-y], [x, y]]);
}
}
rotate(a=[-90,0,0]) union() {
//mounting screw holes
translate([+B/2,+C/2,h-hole_depth]) cylinder(h=hole_depth+1, r=S/2);
translate([-B/2,+C/2,h-hole_depth]) cylinder(h=hole_depth+1, r=S/2);
translate([+B/2,-C/2,h-hole_depth]) cylinder(h=hole_depth+1, r=S/2);
translate([-B/2,-C/2,h-hole_depth]) cylinder(h=hole_depth+1, r=S/2);
}
}
//bearing insert
translate([0,0,-L/2+2]) LME12UU_OP();
}
}
truck();
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