/usr/share/openscad/libraries/MCAD/servos.scad is in openscad-mcad 2014.03-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | /**
* Servo outline library
*
* Authors:
* - Eero 'rambo' af Heurlin 2010-
*
* License: LGPL 2.1
*/
use <triangles.scad>
/**
* 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);
}
}
}
}
// Tests:
module test_alignds420(){alignds420(screws=1);}
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