light around a circle

[Dennis Alwon]

Nice job!

Looks like a bit of a pain to lay out though.... :grin:

Thanks John. It did take about 2-3 hrs to lay this out-- if my memory serves me right.

I took a board about one foot longer than the radius of the circle. I drilled two holes 6" in from each end. One end I used a nail to hold the board in the center of the circle and at the other end I inserted a pencil. I rotated the board and drew the circle. The problems was the floor level stepped down about 7 inches halfway around the circle.

 

[wasasparky]

6 fixtures with 36 foot circumference-- 36 divided by 6 = 6 feet apart.

Be sure to measure along the curve, not in a straight line.

If they want 5 or 7 lights, talk them into 6, the math is easier.
With 6, the straight line distance from can to can is simply the radius of the circle.

If you have an odd-ball number of cans, and don't want to measure along the curve:

1) With R=radius of circle, and N=number of cans...
The distance from can-can measured along the circle is 2xPIxR/N
The distance from can-can measured in a straight line is 2xRxSin(180/N)

2) Get a plumb bob and laser with a base and just use the calculated angles...