Discussion - Monthly folding thread

[Joe the white]

They say easily recognizable simple models are some of the hardest to create. Pureland shouldn't be too much harder, should it? =p. I haven't seen many published pureland models (or at least designated as pureland), besides the four on origami.com by Marc Kirschenbaum and J.C. Nolan, the two-fold Santa by Paula Versnick, Joseph Wu's Stegosaurus, and a few others on the internet.

[Fishgoth]

In theory, pureland should be the easiest to create.

In practice, it is trickier than one would think...

Here is a pureland bear of mine, for inspiration.

http://www.fishgoth.com/origami/diagrams/bear.pdf

[steyen]

nice bear =)
i want to ask, whether rabbit ear is a pureland fold?

[origami_8]

No, on pureland models you only ever make one crease at the time, so no squash folds, swivel folds, rabbit ears, petal folds, sinks,...
That´s what makes it so hard to come up with something.

[Daydreamer]

So... do we have to provide some sort of proof that the model is really pureland?

[Cupcake]

Maybe we all have to provide diagrams

[Fishgoth]

The judge will be Anermak for this month's competition, so you'll have to convince them of the model's authenticity.

Read the essay. Single mountain and valley folds only. No crimps, no reverse folds, no petal folds, no rabbit-ear folds, no elias-stretches...

All you are allow are one or two squares, mountain folds and reverse folds.

Here are some other designs for ideas:

http://dev.origami.com/images_pdf/pfish.pdf
http://dev.origami.com/images_pdf/purepup.pdf
http://dev.origami.com/images_pdf/psteg.pdf
http://dev.origami.com/images_pdf/ptrex.pdf

[origami_8]

So what? Reverse folds or no reverse folds, take a decision!
I´d say no because it wouldn´t be pureland anymore, but I´m not the judge.

[origamimasterjared]

I think he meant to say valley folds the second time.

And actually you can do some reverse folds, squashes, swivels, etc. (They just take multiple steps)

[origami_8]

If you are always only allowed to do one crease at the time, squashs and the like are impossible to do.

[origamimasterjared]

You can do some squashes, swivels, etc. You just have to be creative with mountain and valley folds. Most can't be done, but some can.

[Fishgoth]

All you are allow are one or two squares, mountain folds and reverse folds.

Sorry, my post got knobbled by the moron fairy. That should, of course, have read "All you are allow are one or two squares, mountain folds and valley folds".

[firstfold]

I would like to submist some models for the April Folding challenge but first want to make sure I thoroughly understand the rules.

The best way for me to do this is by showing examples of a basic folds and determining which do and do not fit the rules.

On my web site I have somewhat arbitrarily devided "starting Folds" into 12 categories. I believe that most if not all folds in group 1 fit the Pureland categorty.



I have diagramed all these fold on my web site.

The one fold I am not sure about is what I call the "Flip-Out". Is it pureland or not?

You might also want to look at group 2. These are example I believe do NOT belong to Pureland but wouhd like verification that my belief is correct.

[steyen]

yes firstfold
all folds in first group are pureland folds ,if not mistaken

[Ondrej.Cibulka]

Narrow kite is not any reverse or squash, only valley, valley and mountain on both triangles. You can find such diagram on our website.