Prime Dome Construction

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Length Table

A	Yellow	3.958	47.496
B	Blue	4.638	55.656
C	Red	4.429	53.148
D	Black	4.938	59.256
E	Green	4.562	54.744
F	Orange	4.821	57.852
G	Silver	5.013	60.156
H	Pink	5.243	62.916
I	Brown	5.274	63.288

Side 26.916 29.916 Height 23.30993977 26.30993977


Tools

2 impact drivers, 4 chargers, 6 batteries(previously 2ah but bigger are mote available now) a ratchet, 3 correct size sockets with impact . 2 channel lock style pliers big enough to grab wing nuts.

2x4s with little parts of 2x4s with 45 degree angle to prop up the dome to make it so people don't have to hold it all the time. These can fall and could bonk someone if it is not being held, ensure it does not fall on people.

member construction

Drill bit drill cuttoff wheel, measuring tape, press to squish the member ends flat, flap disk or grinder to deburr.

bolt specifications head size uses x socket

Tarp notes

Labor

A small crew is normally dedicated to this task. It normally takes about 2 days.

Roles

  • Supervisor -- stands and watches
  • Impactor
  • Pattern layer this person preps the poles for the next stage and helps make sure the pattern is followed
  • Nut holder -- this person holds the wing nut with a pair of pliars
  • Lifter, 1 or 2, holds the

It is easier to connect pieces at waste height. so pattern layer will loosly get bolt on a step ahead of the snuggers while there is slack, and then the lifters can align and pull things together at waste height, then weight can also go on the new member right away allowing easier lifting.

We order the members so that when we disconnect things the lower ones can come off first. so when we are putting things up the bolt stack is: the ones going to a higher level are closer to the bolt head, and the horizontal ones are closer to the wing nut. then when the next layer gets added

Slack and play is sometimes nice, we go back around and zap the bolts with the impact.

We add tarps before the thing gets too high.

Safety

This may not be a complete list. 
  • Ask questions, see something say something.
  • We have deburred conduit, but there may still be sharp things.
  • Team lift, communication and coordination of the team is important.
  • Closed toe shoes recommended
  • safety glasses are required.
  • rough housing is not allowed.
  • hearing protection is required. Impact drivers are very loud.
  • Do not put yourself under a part of the dome that is propped up.
  • Take frequent breaks.
  • You may want to wear gloves.
  • Drink penty of water.
  • Wear sunscreen.
  • Have a big brimmed hat.
  • snug fitting long sleeve clothes recommended for sun protection
  • less flammable (cotton) clothes if using an angle grinder. or cut off