Staubsauger-Adapter 40 mm auf 60 mm für Werkstattsauger

// Staubsauger-Adapter: verbindet zwei runde Stutzen.
d_klein   = 40;   // Kleiner Durchmesser (mm)
d_gross   = 60;   // Großer Durchmesser (mm) [d_klein:300]
h_klein   = 30;   // Stecklänge am kleinen Durchmesser (mm)
h_gross   = 30;   // Stecklänge am großen Durchmesser (mm)
h_uebergang = 12; // Länge des Konus dazwischen (mm)
wand      = 2.5;  // Wandstärke (mm) [0.8:15]
$fn = 96;
e = 0.01;
difference() {
    union() {
        cylinder(h = h_klein, d = d_klein + 2*wand);
        translate([0,0,h_klein])
            cylinder(h = h_uebergang, d1 = d_klein + 2*wand, d2 = d_gross + 2*wand);
        translate([0,0,h_klein + h_uebergang])
            cylinder(h = h_gross, d = d_gross + 2*wand);
    }
    translate([0,0,-e]) cylinder(h = h_klein + e, d = d_klein);
    translate([0,0,h_klein]) cylinder(h = h_uebergang, d1 = d_klein, d2 = d_gross);
    translate([0,0,h_klein + h_uebergang]) cylinder(h = h_gross + e, d = d_gross);
}

This is exactly the source behind the sliders above – the parameters are the named variables in it. You can open it locally in OpenSCAD and keep writing; you are not tied to anything. Download the SCAD – no account.