Customizable Protective Octagonal Bellows

thingiverse

Quick and dirty code with few protections. Print in vase mode with some not too brittle plastic. Don't go crazy with radius. I appreciate reports of successful prints, especially those using flex type materials. x = 25; // bellows inner measurement y = 50; // bellows inner measurement approx_z = 100; // bellows relaxed height without sleeves steps = 10; // number of folds step = round(approx_z / steps); z = step * steps; // exact height ext = 1.5; // fold horizontal extension multiplier radi = 1; // verticalsegment = 0.2; // vertical segment between folds sleeve = 20; // sleeve at ends sleeve_ext = 0; // sleeve horizontal extension (multiplied by sleeve value added to x/y) sleeveFN = 20; sides of the sleeve