I've been lurking on this forum for a while now, and cannot thank you all enough for the wealth of knowledge you offer!!! I have finally decided to start my build, however, I've become fascinated with building a form for my 36" x 18" dome.
I was planning on just piling dirt into a 36"x18" form but question whether or not this would hold or if I might get a lopsided/collapsed dome!
As I was thinking about this, I realized that a 36" beach ball could be cut in half to precisely the size I need for my inner dome. I'm wondering if any of you have tried filling a beach ball with *something* that would expand into a solid form (And then cut the ball in half) or coating the outside of a beach-ball with *Something* hard that then we could use as a form to stack my bricks around when building the dome?
Right now, the only idea that I have is using spray foam insulation into a beach ball, letting that harden, and then cutting the foam ball in half.
Thoughts?
I was planning on just piling dirt into a 36"x18" form but question whether or not this would hold or if I might get a lopsided/collapsed dome!
As I was thinking about this, I realized that a 36" beach ball could be cut in half to precisely the size I need for my inner dome. I'm wondering if any of you have tried filling a beach ball with *something* that would expand into a solid form (And then cut the ball in half) or coating the outside of a beach-ball with *Something* hard that then we could use as a form to stack my bricks around when building the dome?
Right now, the only idea that I have is using spray foam insulation into a beach ball, letting that harden, and then cutting the foam ball in half.
Thoughts?
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