[These pages were authored by the late Thoki Yenn, and were restored here from the Internet Archive by Erik Demaine, with contributions of missing files from various readers (notably Tommy Stevens, Roberto Morassi, and Boaz Shuval). If you spot any other bugs like missing images or pages, please report them.]

flip-flop more about step19


More about step 19 by Alfredo from Madrid


I got this in an e-mail from Alfredo Pérez Jiménez:

If you think it can be useful, use it freely as you like. I´ve already send it to Sajid Khan. Alfredo from Madrid

Compare with the drawings.


updated 16. August 2000.

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