CurveUps: Shaping Objects from Flat Plates with Tension-Actuated Curvature (SIGGRAPH 2017)

[@skuncle3036]

This is actually really cool!

[@janapewen362]

"A mask containing eye holes"

[@Anonarchist]

"I'm Flying Fox Person!"

[@tallerpride5163]

Потрясающая технология! Если увеличить это в масштабе, можно делать палатки-тенты сложной кривизны, "разворачивая" их из плоских листов

[@cauesomenzi]

Great research! Congratulations!

[@daltonbyerly6171]

Very clever process. What is the reasoning behind the pins needing to be right triangular prisms specifically?

[@ruslanguseinov4605]

The main reasons are that they form aligned rectangular areas on the membrane between the neighbors and that are easy to model in a physical simulation due to their geometrical simplicity.

[@RomaineRC]

isnt this the voice over guy from the brightside youtube channel?

[@thomasstewart9752]

have you considered putting a zipper-like edge on two curve-ups so that they link together to form a complete design?

[@ruslanguseinov4605]

Connecting edges could be used in practice, however note that the edge lengths might (non-uniformly) contract as the target shape forms, and this is problematic for standard zippers. There are other possible alternatives, for example, per-tile magnets or mechanical locks along the edges.

[@thomasstewart9752]

@@ruslanguseinov4605 What I was thinking was interlocking teeth mounted on the tiles themselves that lock into place when the elastic contracts, holding the two curve-ups together. zipper-like as in interlocking teeth, not as in actual zippers.

Mind blowing! Clever idea! I don't know how they "pre-stretched" the membrane in advance but I'd love to find out.

[@gustavprivat9464]

2:20

[@jaidonsmith3283]

It looks like they take a board and stretch the membrane over it and secure it on the other side

[@elxinternacionaal]

This is great! It's programmable material!

[@hanss3147]

Not quite, you need a new 3d print for every structure you want to make

[@Jianju69]

Impressive software, and good explanation. How is this useful?

[@atom6486]

bruh

[@shivaargula4735]

Removing the support material seemed like such a tedious point of the process. What about splitting the 3D model into two parts, a top and bottom? Then it could be printed with all the tabs facing up and minimal support material connecting the pieces, like a plastic model kit. Then you could simply glue the two halves together, attach the first elastic layer, then cut off all the links.

[@shivaargula4735]

Alternatively, you could divide the model into sections with concave or convex features, and print those out separately. (honestly that sounds a lot harder to do for some models than others) Then the plastic bits could be placed with no space between them at all, eliminating the need for tabs on both sides.

[@ruslanguseinov4605]

We demonstrated one way of fabrication of the structure which is reasonably reproducible. It is certainly not unique and there might be better approaches depending on the available fabrication tools and desired final goals.

[@ianchan2624]

cool!!!!!

[@uv10100]

niiice

[@IndeterminateMetal]

hyper-ball-loid.... lol

[@datredcatone6907]

K Ta I

[@theshuman100]

each tile is a trapezoid... with pins

[@johandaun874]

We can fix flat earthers finally

[@myperspective5091]

👍🙂👍

[@luoduwz9789]

:) I got it now

[@noodle4noggin]

Awesome, now build a Tesla model X using this process.

[@cheuknamtai2385]

You have some great programming skills, but I can't see any reason for people to use this instead of just 3D printing.

[@comigogames]

Fewer materials are used for printing, plus the structure is still elastic and deals better with potential damage.

[@alexholker1309]

If you used something like heat shrink plastic instead of prestretched elastic you could transport and store them as flat sheets until it's time to use them.