i use the PCSX2 to emulate, but I do not know how to remove the models of the PS2 games, could someone help me? :(

I'd love to know how to do this too .. .. .. if any one can help that would be great.

You can't get any real geometries from the current pcsx2 graphic plugins using 3d ripper.The only thing you can get are textures.I thought everyone here knew that already.
Your only option will be to extract directly the models from the disc.But for the majority of ps2 games...LULZ....GOOD LUCK WITH THAT!

OKAY FIRST OF ALL, DO NOT TRY TO RIP FROM THE PS2

Rip from Dolphin. I don't care if you're favorite game isn't on the Gamecube that you want to rip from the PS2 but FUCK IT.

Rip from the Dolphin Emulator since 3DX Ripper wants to be a
giant dick.