Replies

1. 
   JoeBartok | Feb 21, 2006 06:20pm | #1

   Try one of these methods:

   Layout of an Ellipse

   Ellipse Calculator

   Elliptic Arch

   Joe Bartok
1. 
   Tatezi | Feb 23, 2006 05:16am | #2

   Thanks for your solutions to my elliptical problem.  The issue of FB I was referring to had a jig setup involving a rectangle and a moveable rule.  I'll use your solution. Again thanks.

   Brad Page (Tatezi)

1. 
   DanH | Feb 23, 2006 08:00am | #3

   Simplest approach is two nails, a string, and a pencil.
   If ignorance is bliss why aren't more people

   happy?

1. 
   Tatezi | Feb 23, 2006 06:40pm | #5

   So I found out.  Thanks.

2. 
   mike585 | Feb 23, 2006 02:42pm | #4

   Try this.

    

   http://www.miterclamp.com/Installing_crown_molding.htm#videoindex

3. 
   Mike8964 | Feb 24, 2006 01:22am | #6

   Try this. No string or nails needed. Just a straightedge, pencil & tape.

   Mike

1. 
   Tatezi | Feb 24, 2006 02:10am | #7

   Mike,

   Thanks a lot. It's exactly what I've been looking for. Simple and straightforward. No chords, etc. 

   Brad

1. 
   Mike8964 | Feb 24, 2006 02:53am | #8

   You're welcome. Glad it helped.Mike

1. 
   dedubya | Feb 24, 2006 03:05am | #9

   mIKE  IM JUST PLUM DUMBFOUNDED man that is slick cant wait till i

   show the kids. thankyou  i love stuff like that.

2. 
   blue_eyed_devil | Feb 24, 2006 07:56am | #10

   Hats off to you Mike for that wonderful tip. These tips are what I come to this site for. I'll probably never use it but at least I know now how I could have done something easier in the past!

   The on area that it might become useful for is when a large opening is arched.

   Thanks again.

   blue

   PS, I've used Joe Bartoks suggested sites and they work great too. 

1. 
   Mike8964 | Feb 24, 2006 03:33pm | #11

   It does come in really useful on large openings. I like it because I can draw it right on the plywood, cut one piece, and use it as a template for the other three.Tips like this are also one of the best reasons to come here for me. I've been carpentering for 20 years now, and I'm still amazed at how many little (and big, for that matter) things you can pick up that make your day a bit easier.Mike

1. 
   JoeBartok | Feb 24, 2006 07:24pm | #12

   I think that actually produces the envelope for an hyperbola. Which is O.K., it still creates a smooth curve for the door opening.Joe Bartok

1. 
   Pete | Feb 24, 2006 11:35pm | #13

   this may just be parabolic hyperbole, but I prefer the oval arch over the segmented circle.