Primitive Archer

Main Discussion Area => Bows => Topic started by: Badger on February 16, 2015, 03:20:51 pm

Title: Forming curves
Post by: Badger on February 16, 2015, 03:20:51 pm

   I learned a new word to describe a method for forming curves. I sometimes wrap a string around a circular object of any size I choose and put a pencil on the free end to use as a compass. As I draw my circle the radius gets bigger as the string unwinds from the round object I have it wrapped around. Nice method for forming "involute" curves. Involute is the new word I just learned, I had been calling it a progressive bend.

Title: Re: Forming curves
Post by: Chadwick on February 16, 2015, 03:30:32 pm

Is it the same thing as a section of a spiral?

Title: Re: Forming curves
Post by: Badger on February 16, 2015, 03:38:54 pm

   I am not sure if it is or not.

Title: Re: Forming curves
Post by: Springbuck on February 16, 2015, 04:06:26 pm

  Not a regular spiral, I don't think.  It might follow a Fibanocci series spiral.

 

Title: Re: Forming curves
Post by: PatM on February 16, 2015, 04:56:08 pm

" Just" learned? I posted this about two years ago and you said you learned the word then too. ;)
 I can even find the threads here and on the LW.

Title: Re: Forming curves
Post by: Badger on February 16, 2015, 05:05:52 pm

   PatM, I must have forgotten it. I do that often.

Title: Re: Forming curves
Post by: bradsmith2010 on February 16, 2015, 05:25:01 pm

yep I have to keep going back and reading about bows, I forget everything,, but I never get bored  :) :) :)

Title: Re: Forming curves
Post by: PatM on February 16, 2015, 05:47:58 pm

http://leatherwall.bowsite.com/TF/lw/thread2.cfm?threadid=256048&category=88#3552032
http://www.primitivearcher.com/smf/index.php/topic,44850.msg606427.html#msg606427

Title: Re: Forming curves
Post by: Badger on February 16, 2015, 06:00:32 pm

  I remember that now that I see it. I went looking for the word again having forgotten it allready. I did rememeber there was a word for it.