I have pipes that run down each side of my
hall. Its #40 1.5" steel pipe, in 8' lengths. Each pipe currently supports 4 instruments (some Pars some Lekos). In an effort to get a better angle I need to get an
instrument out about 3' from my
current pipes. Can I attach a 4' section of pipe with a
Rota Lock or other 90 degree
coupler and only support the pipe at one end? I only need to support the weight of one 14 degree S4 but the idea of hanging a pipe 90 degrees out from my
current pipes and only supporting it from one end concerns me.
TIA
-d
Hello!
Thoughts:
18" - 24"
boom arms, normal cast clamps, spigots replaced by a length of 1/2" schedule 40, one or two
boom tee's were the accepted norm for decades; I often worried that the side stress on the cast clamp was the weak
point.
You saw them routinely supporting
Altman 360’s and
360Q’s over the heads of Broadway patrons for years; sometimes one up and one down all the way out to the end, sometimes one down at the end and a second down closer to the vertical.
You're looking to go 4' out using 1-1/2 schedule 40, there are many clamps available far better than cast.
You could consider using 1-1/4" schedule 40, there are several clamps available to mate 1-1/4” to 1-1/2” as well.
You might consider including a forged flanged eye
bolt drilled through the free end of your arm with chain and a
turnbuckle running up diagonally to a higher
point on your vertical pipe. Use a clamp on your vertical and
choke your chain around the vertical above the clamp. The clamp's only purpose would be to prevent the chain from sliding down the vertical. Chain angled above, fixtures dangled below avoiding the chain.
As others have pointed out, much depends upon how your verticals are secured to your walls; 1" #8 plastic anchors into drywall would not be the best option. ;^)
Kee, as in KeeKlamps, have a very economical option that's basically a horseshoe with a hole through it at 90 degrees secured with a single Allen head hollow set screw. Simple, affordable, unbelievably solid for what they are. Alvin Clamps make clones of pretty much everything Kee offers.
As I wrote back at the beginning: Thoughts, only thoughts.
Toodleoo!
Ron Hebbard
