GilesBathgate

module polyhole(h, d) {
    n = max(round(2 * d),3);
    rotate([0,0,180])
        cylinder(h = h, r = (d / 2) / cos (180 / n), $fn = n);
}

module main() {
  difference() {
    linear_extrude(5) {
      hull(){

GilesBathgate

nozzle_dia=0.4;
layer_height=0.3;

function pi() = 3.141592;
function width(d,h) = h-(pi()*((h*h)-(d*d)))/(4*h);
function arc(r,t) = 0.5*(t+sqrt((t*t)+4*(r*r)));
function polyhole(r,n,t) = arc(r,t)/cos(180/n);

function sides(d,t) = ceil(180 / acos((d-t)/d));

GilesBathgate

//Set FPS=10 Steps=36
angle=$t*360;

module wheel(r,a){
  rotate([0,0,angle+a])
  translate([r,0,0])
    rotate([0,90,0])
      cylinder(r=10,h=1,$fn=20);
}

GilesBathgate

module main(){
difference(){
cube([100,17,5],true);
for(i=[-2:2])
translate([i*20,0,0])
cube(6,true);
}
}

module mods(){

GilesBathgate

GilesBathgate

e=0.8338;
d=0.1111;
l=4;
polyhedron([
[-e,l/4,-d],  //0
[0,l,0],  //1
[0,0,0],  //2
[e,l/2,-d],  //3
[2,0,0],  //4
[2,l,0],  //5

GilesBathgate

$fn = 32;
w = 0.5;
n = 4;

R = 2;
r = R / cos(180/n);

difference() {
// Chain hull of circles same width as filament at nozzle positions
for(i = [0 : n - 1])

GilesBathgate

duct_wall=1;
gap=6;
inner_radius=18;
outer_radius=inner_radius+gap;
height=14;
nozzle_height=6;
taper_angle=30;
skew=nozzle_height*tan(taper_angle);

top_height=height-nozzle_height;

GilesBathgate

duct_wall=1;
gap=6;
inner_radius=18;
outer_radius=inner_radius+gap;
height=14;
nozzle_height=6;
taper_angle=30;
skew=nozzle_height*tan(taper_angle);

top_height=height-nozzle_height;

GilesBathgate

#!/usr/bin/env python

import requests
r=requests.post("http://httpbin.org/post",data={"this&":1,"that=":2})
print(r.text)