Impossible Playing Cards

[BarnDoor]

To get the cards flat I decided against ironing as I'm not sure if that could have any sort of detrimental effect on them, so instead I've been putting them in between the pages of a large dictionary, putting that on the floor and then racking about 10kg of weights on top. Crude, but it works!

Great. I'm not sure about ironing either, as I think some cards are plastic coated
I'll try the "book press technique"..

[TheJuggler]

If you wanted to 'iron them flat' put them inside a tea towel, then iron on a low heat.

[Paradox]

Did any keen eyed puzzlers notice the mistake I made on this card?


Impossible Card - DIY by Puzzleparadox, on Flickr

It has been rectified now though...

[BarnDoor]

I see it now...the wider loop on the right folded slightly differently

[Paradox]

I see it now...the wider loop on the right folded slightly differently

That's the one! I've changed it now so the fold looks just as impossible as the others.

[BarnDoor]

Variations on a theme:

JoeCard05h.jpg (71.92 KiB) Viewed 8013 times

JoeCard06h.jpg (59.64 KiB) Viewed 8013 times

[a-maze-ing]

Over the last week I created several "impossible folded cards", mostly the ones shown in this thread.
I found a few more pictures in the Slocum collection (online Lilly library), and created some of those too.
(Either that library database is a little mixed up or my browser has an other reason not to load the pictures on the pages behind the hyperlinks in this page:)
http://webapp1.dlib.indiana.edu/images/ ... JsZSBjYXJk

Does anyone have a useful link to more online examples, and/or to more background information about the cards and their designers?
I would like to read more about these and try to 'solve' more of these cards.
Especially the numbers 22718 and 22720 from the above link are intriguing to me, as they appear much more impossible than most others...

(yes I tried posting a picture, but that won't work from an iDevice)

[TheJuggler]

Have a look here ...
http://mavensnest.wordpress.com/tag/paranormal-objects/

[a-maze-ing]

Have a look here ...
http://mavensnest.wordpress.com/tag/paranormal-objects/

Thanks for that link, it shows some more nice examples.
I am surprised (or glad) that the 'really impossible ones' are not on that page.
The Olympic rings (from Allards blog) are also still on my mind, but not yet on my table...

[TheJuggler]

I believe I know how to make the Olympic rings, just haven't tried it yet...