Is it possible to make a collapsible origami bellow/sleeve without using glue? I am interested in that because i want to make a plunger engine that would use such a sleeve made of fiberglass sealed with tar. Any use of glue is precluded cause it would not withstand the pressure.
It is not a problem about origami so much as a problem of topology. If you are starting with a sheet of material its topology is genus 0. The shape you want, a sleeve, is genus 1 like a donut. The two are topographically unique and you cannot get from 0 to 1 without connecting the sheet to itself at some point, thus the glue.
If you had a seamless tube of fiberglass material, then you could get into the folding process that would give you the sleeve shape you want, but it is impossible with a flat sheet.