Redukce odsávání pro kotoučovou pilu ve FutLabu

RedukceOdsavani.scad

// Redukce odsávání pro stolovou pilu ve FutLabu
// (c) Michal A. Valášek, 2020 - CC BY-NC-SA

include <A2D.scad>; // https://github.com/ridercz/A2D
assert(a2d_required([1, 5, 0]), "Please upgrade A2D library to version 1.5.0 or higher.");

/* [Narrow part] */
narrow_outer_diameter = 64;
narrow_length = 25;

/* [Wide part] */
wide_inner_diameter = 100;
wide_length = 25;

/* [Common] */
middle_length = 40;
wall_thickness = 1.67;

/* [Hidden] */
$fudge = .01;
$fn = 128;

assert(wide_inner_diameter > narrow_outer_diameter);
assert(wide_length > 0 && narrow_length > 0 && middle_length > 0);
assert(wall_thickness > 0);

// Wide part
linear_extrude(wide_length) h_circle(d = wide_inner_diameter, thickness = -wall_thickness);

// Middle part
translate([0, 0, wide_length]) difference() {
     cylinder(d1 = wide_inner_diameter, d2 = narrow_outer_diameter + 2 * wall_thickness, h = middle_length);
     translate([0, 0, -$fudge]) cylinder(d1 = wide_inner_diameter - 2 * wall_thickness, d2 = narrow_outer_diameter, h = middle_length + 2 * $fudge);
}

// Narrow part
translate([0, 0, wide_length + middle_length]) linear_extrude(wide_length) h_circle(d = narrow_outer_diameter, thickness = wall_thickness);

RedukceOdsavani.stl