This next one is based on the involute of a circle.

Interesting. It shows how a little time studying the conditions of a problem can lead to a simpler solution.

 

I've been wondering how the various answers between 25' and 27' would have influenced your shopping.
Would you buy 2 sets at 15 ft, or, 3 sets of 10 ft each.

I bought nothing. I have a beautiful red ribbon tree 48" tall, 20" wide, and two strings of red LED lights each about 15 feet long. My problem setting these up in previous years was getting the spacing of the spirals about the tree uniform.

The supplied formulas agrees with my guess close enough to get the number I sought: how many turns, or how far apart each spiral should be.

I used 3 turns per strand with each strand starting 180° from each other.

The end result is in post #17.

Sorry my phone took such a lousy picture, but at least my kitty got into frame.

 

Interesting. It shows how a little time studying the conditions of a problem can lead to a simpler solution.

When I was a teen in the Boy Scouts we called the "P Seven:" Proper Prior Planning Prevents Pitifully Poor Program.

It is also summed up in the phrase "Look before you leap."

 

I bought nothing. I have a beautiful red ribbon tree 48" tall, 20" wide, and two strings of red LED lights each about 15 feet long. My problem setting these up in previous years was getting the spacing of the spirals about the tree uniform.

The supplied formulas agrees with my guess close enough to get the number I sought: how many turns, or how far apart each spiral should be.

I used 3 turns per strand with each strand starting 180° from each other.

The end result is in post #17.

Sorry my phone took such a lousy picture, but at least my kitty got into frame.

Hi,

What is that in that pic? I dont see anything useful.

 

What is that in that pic? I dont see anything useful.

It's the a spiral about a cone, or the intent of my first post. Actually two spirals for those who count these things.

 

It's the a spiral about a cone, or the intent of my first post. Actually two spirals for those who count these things.

Hi,

The pic in post #62 is nothing more than a straight line. Did you upload the wrong picture?

 

I have no idea how that line got into post #62. It has been removed.

I said the end result is in post 17. I even linked it.

 

I have no idea how that line got into post #62. It has been removed.

I said the end result is in post 17. I even linked it.

Hi,

Oh ok, ha ha. Maybe your computer is secretly uploading pics when you are sleeping