Customizable Protective 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 and stick to steps even divisible by height. As usual, I appreciate reports of successful prints especially in 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 = 0; // radius 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) Thanks a lot to Elstak for verification and this great video: https://youtu.be/jIlPBB8f2_I https://openscadsnippetpad.blogspot.com/