Amadori's Link is shown in the figure shown below.
The principle used for Amadori's Link is the same as the one applied for Ceva's Pantograph decribed above. The straight edge is attached to a base plate which has a cutout circle. The point P of the straight edge moves along the bisector of the angle AOB while point R moves along the diameter of the circle. The trisection is accomplished when the line PR passes through point C.
You can see the process in animation.
*********** Amadori_desc.dwg ***********
To create this drawing and animation:
Load Amadori.lsp (load "Amadori")
Then from command line, type Amadori
For a quick look to se how the mechanism works, type test_1
Animation file creation:animation_Amadori
Type in @2<-165. for angle input
You can see the process in animation.
******** Amadori_trisection_demo.dwg ********
1. Yates,Robert Carl : "The Trisection problem". p 36.
All questions/suggestions should be sent to Takaya Iwamoto
Last Updated Nov 22, 2006
Copyright 2006 Takaya Iwamoto All rights reserved.>
