MCAD-Library/servos.scad
Olivier Boesch 117a3e79bd
Added TowerPro SG90 Servo
features:
* screws
* cables output
* axle
2020-09-09 21:43:30 +02:00

201 lines
5 KiB
OpenSCAD

/**
* Servo outline library
*
* Authors:
* - Eero 'rambo' af Heurlin 2010-
*
* License: LGPL 2.1
*/
use <triangles.scad>
/**
* TowerPro SG90 servo
*
* @param vector position The position vector
* @param vector rotation The rotation vector
* @param boolean screws If defined then "screws" will be added and when the module is differenced() from something if will have holes for the screws
* @param boolean cables If defined then "cables" output will be added and when the module is differenced() from something if will have holes for the cables output
* @param number axle_length If defined this will draw a red indicator for the main axle
*/
module towerprosg90(position=undef, rotation=undef, screws = 0, axle_length = 0, cables=0)
{
translate(position) rotate(rotation) {
difference(){
union()
{
translate([-5.9,-11.8/2,0]) cube([22.5,11.8,22.7]);
translate([0,0,22.7-0.1]){
cylinder(d=11.8,h=4+0.1);
hull(){
translate([8.8-5/2,0,0]) cylinder(d=5,h=4+0.1);
cylinder(d=5,h=4+0.1);
}
translate([0,0,4]) cylinder(d=4.6,h=3.2);
}
translate([-4.7-5.9,-11.8/2,15.9]) cube([22.5+4.7*2, 11.8, 2.5]);
}
//screw holes
translate([-2.3-5.9,0,15.9+1.25]) cylinder(d=2,h=5, center=true);
translate([-2.3-5.9-2,0,15.9+1.25]) cube([3,1.3,5], center=true);
translate([2.3+22.5-5.9,0,15.9+1.25]) cylinder(d=2,h=5, center=true);
translate([2.3+22.5-5.9+2,0,15.9+1.25]) cube([3,1.3,5], center=true);
}
if (axle_length > 0) {
color("red", 0.3) translate([0,0,29.9/2]) cylinder(r=1, h=29.9+axle_length, center=true);
}
if (cables > 0) color("red", 0.3) translate([-12.4,-1.8,4.5]) cube([10,3.6,1.2]);
if(screws > 0) color("red", 0.3) {
translate([-2.3-5.9,0,15.9+1.25]) cylinder(d=2,h=10, center=true);
translate([2.3+22.5-5.9,0,15.9+1.25]) cylinder(d=2,h=10, center=true);
}
}
}
/**
* Align DS420 digital servo
*
* @param vector position The position vector
* @param vector rotation The rotation vector
* @param boolean screws If defined then "screws" will be added and when the module is differenced() from something if will have holes for the screws
* @param number axle_lenght If defined this will draw "backgound" indicator for the main axle
*/
module alignds420(position, rotation, screws = 0, axle_lenght = 0)
{
translate(position)
{
rotate(rotation)
{
union()
{
// Main axle
translate([0,0,17])
{
cylinder(r=6, h=8, $fn=30);
cylinder(r=2.5, h=10.5, $fn=20);
}
// Box and ears
translate([-6,-6,0])
{
cube([12, 22.8,19.5], false);
translate([0,-5, 17])
{
cube([12, 7, 2.5]);
}
translate([0, 20.8, 17])
{
cube([12, 7, 2.5]);
}
}
if (screws > 0)
{
translate([0,(-10.2 + 1.8),11.5])
{
# cylinder(r=1.8/2, h=6, $fn=6);
}
translate([0,(21.0 - 1.8),11.5])
{
# cylinder(r=1.8/2, h=6, $fn=6);
}
}
// The large slope
translate([-6,0,19])
{
rotate([90,0,90])
{
triangle(4, 18, 12);
}
}
/**
* This seems to get too complex fast
// Small additional axes
translate([0,6,17])
{
cylinder(r=2.5, h=6, $fn=10);
cylinder(r=1.25, h=8, $fn=10);
}
// Small slope
difference()
{
translate([-6,-6,19.0])
{
cube([12,6.5,4]);
}
translate([7,-7,24.0])
{
rotate([-90,0,90])
{
triangle(3, 8, 14);
}
}
}
*/
// So we render a cube instead of the small slope on a cube
translate([-6,-6,19.0])
{
cube([12,6.5,4]);
}
}
if (axle_lenght > 0)
{
% cylinder(r=0.9, h=axle_lenght, center=true, $fn=8);
}
}
}
}
/**
* Futaba S3003 servo
*
* @param vector position The position vector
* @param vector rotation The rotation vector
*/
module futabas3003(position, rotation)
{
translate(position)
{
rotate(rotation)
{
union()
{
// Box and ears
translate([0,0,0])
{
cube([20.1, 39.9, 36.1], false);
translate([1.1, -7.6, 26.6])
{
difference() {
cube([18, 7.6, 2.5]);
translate([4, 3.5, 0]) cylinder(100, 2);
translate([14, 3.5, 0]) cylinder(100, 2);
}
}
translate([1.1, 39.9, 26.6])
{
difference() {
cube([18, 7.6, 2.5]);
translate([4, 4.5, 0]) cylinder(100, 2);
translate([14, 4.5, 0]) cylinder(100, 2);
}
}
}
// Main axle
translate([10, 30, 36.1])
{
cylinder(r=6, h=0.4, $fn=30);
cylinder(r=2.5, h=4.9, $fn=20);
}
}
}
}
}
// Tests:
module test_alignds420(){alignds420(screws=1);}