Hi everyone,
I am trying to design an Y pipe with OpenScad and I am wondering if there is an easy way to make any object holow.
My design is basically 3 cylinders forming an Y and I would like to make it holow and open at the tips.
I tried something like this without much success:
difference() {
yTube();
scale(v=[0.8, 0.8, 1.1]) yTube();
}
The more verbose version, which is also not finished is below:
use
wall_t = 2.5;
pump_r = 25;
ext_r = pump_r + wall_t;
int_r = pump_r;
connector_h=30;
left_arm_lenght= 40;
right_arm_lenght= 40;
free_fit = 0.2;
angle_left = 45;
angle_right = -90;
a_bit = 0.1;
junction_z = connector_h + ext_r/2;
main();
module main(){
difference(){
external();
% internal();
}
}
module internal() {
// union(){
//vertical tube
translate(v=[0,0,connector_h/2])
cylinder(r=int_r, h=connector_h * 1.5, center=true);
//left arm
translate(v=[0,0, junction_z]) rotate([angle_left, 0, 0])
cylinder(r=int_r, h=left_arm_lenght*1.2, center=true);
//right arm
translate(v=[0,0, junction_z]) rotate([angle_right, 0, 0])
cylinder(r=int_r, h=right_arm_lenght*1.2, center=true);
//junction
// translate(v=[0,0, junction_z]) rotate([0, 90, 0])
// cylinder(r=int_r, h=ext_r * 1.9, center=true);
// }
}
module external(){
union(){
translate(v=[0,0,connector_h/2]) tube(connector_h, ext_r, wall_t, true);
//left arm
translate(v=[0,0, junction_z]) rotate([angle_left, 0, 0])
tube(left_arm_lenght, ext_r, wall_t, false);
//right arm
translate(v=[0,0, junction_z]) rotate([angle_right, 0, 0])
tube(right_arm_lenght, ext_r, wall_t, false);
//junction
translate(v=[0,0, junction_z]) rotate([0, 90, 0])
cylinder(r=ext_r, h=ext_r * 2, center=true);
}
}
module external_tubes() {
//horizontal
//translate(v=[0,0, connector_h + ext_r]) rotate([90, 0, 0]) cylinder(r=ext_r, h=arms_l, center=true);
//vertical
translate(v=[0,0, connector_h/2]) cylinder(r=ext_r, h=connector_h, center=true);
//y
translate(v=[0,-10, connector_h + ext_r]) rotate([angle_left, 0, 0])
cylinder(r=ext_r, h=left_arm_lenght, center=true);
}
Edited 2 time(s). Last edit at 02/08/2013 02:00AM by fsamir.
Cheers,
Franklin Dattein
