# Curved Bending of a Square Shaped Paper

**URL:** <https://discourse.mcneel.com/t/curved-bending-of-a-square-shaped-paper/215548>\
**Category:** Grasshopper\
**Tags:** windows, rhinocommon, grasshopperrhino, rhino8, geometry\
**Created:** [February 5, 2026, 12:38pm UTC](https://discourse.mcneel.com/t/curved-bending-of-a-square-shaped-paper/215548 "2026-02-05T12:38:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Namdev](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/namdev/32/724899_2.png) [@Namdev](https://discourse.mcneel.com/u/Namdev)\
**Post date:** [February 5, 2026, 12:38pm UTC](https://discourse.mcneel.com/t/curved-bending-of-a-square-shaped-paper/215548/1 "2026-02-05T12:38:05Z")

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Hi. I am trying to curve-bend a square shaped paper for a project using kangaroo physics. Unable to find good tutorials. I saw one by  
Gediminas Kirdeikis byt it is hard to understand how corner vertices can be folded without a crease line. Please help with the same.

 ![WhatsApp Image 2026-02-05 at 07.11.56](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/1/c/3/1c301322190cd41a84f3435a87c7abdc6f0d8fa5.jpeg)

 ![WhatsApp Image 2026-02-05 at 07.09.12](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/c/5/a/c5ac30e5d388bb43306577a2c0263c77522513ac.jpeg)

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**Author:** ![Edr](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/edr/32/684630_2.png) [@Edr](https://discourse.mcneel.com/u/Edr)\
**Post date:** [February 5, 2026, 1:17pm UTC](https://discourse.mcneel.com/t/curved-bending-of-a-square-shaped-paper/215548/2 "2026-02-05T13:17:08Z")

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![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/e/9/b/e9bfae318baeb83db382bba5f50a0f8f824a5692.png)  
It will still have fold lines. Just in one direction and one angle

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**Author:** ![Jakob\_v\_Schirmeister](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/jakob_v_schirmeister/32/772164_2.png) [@Jakob\_v\_Schirmeister](https://discourse.mcneel.com/u/Jakob_v_Schirmeister)\
**Post date:** [February 5, 2026, 2:41pm UTC](https://discourse.mcneel.com/t/curved-bending-of-a-square-shaped-paper/215548/3 "2026-02-05T14:41:47Z")

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when there are enough bendlines. very dense… it looks bended.

[bendRectengle\_with\_foldlines..gh](https://discourse.mcneel.com/uploads/short-url/536i1BrmJ50BBYOWMLAHocU6fnL.gh) (28.9 KB)

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/e/6/7/e67e01b625f61f19b76a7d076789dd73aad68ca9.png)