Now that the helmet is done, turning my attention to the rocket pack. First order of business: tubing for the rockets.
The dimensions I've seen posted elsewhere on the forum show the tubes should be 7.25" outside diameter. I'm trying to work out where to get that.
Ideally, I'd order 7" (close enough) acrylic tubing. Although it would be a bit heavy, it can be found thin-walled (1/8") and it would be strong. Unfortunately, it's crazy expensive. Interstate Plastics sells it in 72" lengths (twice as much as I need) for $333.
So, 7" PVC pipe? It's hard to find. Assuming it's actually 7" outside diameter (which you can't count on with PVC pipe), Harrison Plastic has it with .187" walls, but it's sold in 10' lengths = $217.
If I scale it down a bit and use 6" pipe (which I'd rather not do), it gets easier. 6" PVC pipe (actually 6.625" outside diameter) is available as schedule 40 (1/4" walls, a bit too thick) in a 5' length, for $89.
Until I work out the pipe I'm using, I can't do much, because the diameter of the tubing determines the scale.
Any suggestions?
The dimensions I've seen posted elsewhere on the forum show the tubes should be 7.25" outside diameter. I'm trying to work out where to get that.
Ideally, I'd order 7" (close enough) acrylic tubing. Although it would be a bit heavy, it can be found thin-walled (1/8") and it would be strong. Unfortunately, it's crazy expensive. Interstate Plastics sells it in 72" lengths (twice as much as I need) for $333.
So, 7" PVC pipe? It's hard to find. Assuming it's actually 7" outside diameter (which you can't count on with PVC pipe), Harrison Plastic has it with .187" walls, but it's sold in 10' lengths = $217.
If I scale it down a bit and use 6" pipe (which I'd rather not do), it gets easier. 6" PVC pipe (actually 6.625" outside diameter) is available as schedule 40 (1/4" walls, a bit too thick) in a 5' length, for $89.
Until I work out the pipe I'm using, I can't do much, because the diameter of the tubing determines the scale.
Any suggestions?
