# Trying to make a ball that speeds up after each bounce AND doesn't get stuck between parallel walls.

**URL:** <https://forums.unrealengine.com/t/trying-to-make-a-ball-that-speeds-up-after-each-bounce-and-doesnt-get-stuck-between-parallel-walls/150819>\
**Category:** Blueprint\
**Tags:** unreal-engine\
**Created:** [September 17, 2020, 11:39pm UTC](https://forums.unrealengine.com/t/trying-to-make-a-ball-that-speeds-up-after-each-bounce-and-doesnt-get-stuck-between-parallel-walls/150819 "2020-09-17T23:39:58Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Everynone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/everynone/32/1135017_2.png) [@Everynone](https://forums.unrealengine.com/u/Everynone)\
**Post date:** [September 21, 2020, 9:38pm UTC](https://forums.unrealengine.com/t/trying-to-make-a-ball-that-speeds-up-after-each-bounce-and-doesnt-get-stuck-between-parallel-walls/150819/5 "2020-09-21T21:38:59Z")

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It getting _stuck_ is most likely caused by friction, it can be overridden with a physical material.

I’ve tested this for a couple of minutes and it seems to work OK, without getting stuck:

 ![Screenshot 2020-09-21 223123.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/3X/2/f/2f13d31b00c300292a0920c7ee636b9f0557950a.jpeg)

Physical material:

 ![Screenshot 2020-09-21 223144.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/3X/4/a/4a8629ee50413f974d31d591b39e99cd852ed7f6.jpeg)

- no movement / projectiles components
- simulate physics
- no gravity
- no dampening
- simulation generates hit events

vid: [https://i.gyazo.com/943601e6623269bb…8697d8ffd3.mp4](https://i.gyazo.com/943601e6623269bb26d4f08697d8ffd3.mp4)

> [@](#):
>
> work OK, without getting stuck

… it may get stuck later, though - who knows. Still bouncing here for now. But the physics will fail eventually at very high speeds. At which point you will need to enable CCD and up the solvers in the advanced physics settings.

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