Need a device or guide for scribing eliptical tops.

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Forum topic by Bill White posted 02-17-2012 10:54 PM 1056 views 0 times favorited 5 replies Add to Favorites Watch
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Bill White

4930 posts in 3959 days

02-17-2012 10:54 PM

Topic tags/keywords: shaping

I have seen some string/nail options for an ellipse (did I spell that correctly?). Anybody got some guides?


5 replies so far

View DIYaholic's profile (online now)


19620 posts in 2673 days

#1 posted 02-17-2012 11:41 PM

Trammel of Archimedes

Haven’t used it. Just remember a LJ’er made a toy of one & posted.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View waho6o9's profile


8190 posts in 2575 days

#2 posted 02-18-2012 12:54 AM

Make an x and y axis. For example 10 inches = one axis, 4 inches = the other axis. The center point will be the focal point.
Make a story stick any comfortable size you want. Make three lines on the story stick on the small axis, one on the end, one in the center, and one on the other end.
Make a series of dots in each quadrant by placing 2 lines of the story stick on each axis and make a mark on the ending line.
Move the story stick around and you will see the pattern.

View HamS's profile


1829 posts in 2387 days

#3 posted 02-18-2012 01:04 AM

That was probably the simplest one. Google string ellipse for more options.

-- Haming it up in the 'bash.

View bilbaggins's profile


101 posts in 2447 days

#4 posted 02-18-2012 01:06 AM

Hi Bill

there are a number of posts here with tramel info, just do a search using:

“ellipse trammel”

that should give you a bunch of options



-- bilbaggins says: The best time to plant a tree is twenty years ago. The second best time is now. ~ Chinese proverb

View longgone's profile


5688 posts in 3307 days

#5 posted 02-18-2012 02:09 AM

Andy made one recently as a toy. Works on a larger scale for big elliptical tops.

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