Hi Robotland, That's a cool idea! I'd really love to have a little "crow's nest" to hang out up high. Maybe the center could be a rigid steel "bracket"? I've heard that rock climbers avoid "horizontal" rope angles to anchor points because a mechnical advantage pulls them together with tons of force....

Robotland, Yeah, a trapeze, lyra, fabric, spanish web, etc. Most only require a single rigging point in the center. Though a trapeze can benefit from two points about twice shoulder width apart. A "real" portable rig starts at $1200 for a basic good one (25 feet tall). But, we're looking to create a...

Robotland,

That's cool! I liked the image of the egg shaped dome and the triple dome that you are working on.

It sounds like a 3/4" 2V dome stretched a little vertically might be strong enough for what I am trying to create. Hmmm...

-John

Gosh, Thank you! That list of welding links is downright amazing. I've been welding for years, but learned things by reading through that post about them. DesertDomes.com is awesome too. I based my 1/2 scale model on reading Tara's great information(desertdomes.com). It was made of 1/2" conduit and ...

PS: Any ideas on how to test the feasability of modified dome designs? One of the performers liked the way a 3V Icosahedron model "looked" like a circus tent. (basically just a 3V dome with 1 size strut.)

Badger and Dork,

That's great. I was curious about Thunderdome's specifics. The rebar trick sounds familar. And, that certainly holds enough weight. Making it easy to climb makes a ton of sense.

-John

Hi, I'm working on a quasi-geodesic dome project for use as an aerialist rig and performance space. Does anyone have advice on what size tubing would be appropriate? I've built a scale model 1/2" conduit 1V Icoahedron, but am really shooting for 25' of height - and it needs to be able to handle a re...

I might be able to help you out. This is what I do 51 weeks out of the year.