submit to reddit


Please Let Me Know How Much You Like This (1 is very Bad - 10 is Excellent)




Bar pantograph 6




OABC: parallelogram.

Triangles ADB and CBE are similar.

Triangles DAO, DBE and OCE are similar.

Triangles ODE and ABD are similar.

O: immobile

Figures traced by pen E and pen D are similar but figure D is turned an angle DAB in comparison with figure E.

Scale factor is k = AD/AB = CB/CE = constant.



Add a comment or brief description of this mechanism in your language.


(c) www.mechanisims.co All rights reserved.