Spherical Tank
A few years back I stashed a couple of shampoo bottles in the barn, because they had hemispherical ends on them. I thought I might use them on a rocket someday. Well, today is that day!
I started by chucking the threaded portion in the wood lathe and parted the end off of each. Then I used a hole saw to cut a 1-11/16" hole in each one.
The two halves need to be glued together... so I'm doing a little R&D with some Duco Cement to see what works best.
Updates: Glue R&D
06-08-2024: Duco Cement
I tried (1) test with no prep: Failure
I tried (1) test with the surface sanded: Failure
06-09-2024: Bob Smith Super Thin Insta-Cure CA
(1) test with no prep: Failure
(1) test with the surfaces sanded: Failure
06-10-2024: Testors Model Cement
(1) test with no prep: Failure
(1) test with the surfaces sanded: Failure
06-13-2024: J-B Weld
(1) test with no prep: Failure
(1) test with the surfaces sanded: Failure
Update 06-13-2024: Well, looks like this one is destined for the trash heap. It's impervious to all glues that I have. Time to search for a
sphere made from a material I can work with.