Re: 3D printed in-frame plastic gas tanks
I would say the cheapest and easiest way to produce nice looking tanks is to blow mold the basic shape and make a cover to go over it. No leaks and easy to customize. For the bikes I am building I am making round tanks out of exhaust tubing, making some out of 5" diameter right now. $56 for a 10' stick of 5" tubing, filler neck and cap $11.