func_physbox goes threw walls

I'm making a siege type map but im noticing a nasty habbit of func_phys boxes going threw brushes. I fixed this in most places by make the walls func_wall entities but! I'm making a moveable siege weapon. It proably has a a name but you push it up to the wall hit the button and a platform leaps up and allows u to scale the wall.

The base of it is a func_physbox and then there is another fun_physbox on top of it attached to hinges. When u hit the button a thruster shoots the platform up. But when i load the map the top platform falls threw the base. I can't parent the func_walls to move with the weapon....any ideas?

I could use a func_door rotating....but i want my thrusters haha

thanks for any help

Ew. Don't make all the world brushes entities to fix this! There's no need. Just make sure the physbox is set to collide with world ... that's it.

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Blame it on Microsoft, God does.

collide with world? It's proably me but where is that option?

Look through the normal options, like the list where "Name" is and all those other options. It's towards the bottom. However, if I remember, that starts "Yes", so either you changed it ... or clicked a flag somewhere that I'm not thinking of.

There might be another option ... hang on ...

Sorry, it's called "Not Solid to World", make sure that's set to "Solid To World". It's the last setting in the func_physbox properties.

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Blame it on Microsoft, God does.

You can also place func_vphysics_clip brushes around the spots you dont
want to collide with (might save you on performance wise with collision
calculations)

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Posting And You