Trouble ripping SSBM models from Dolphin

[Onett Person]

I'm having some trouble ripping SSBM models, as you can tell from the title. I want to rip Samus and DK from Melee, but 3D Ripper isn't cooperating with me. I press F12 to capture and it never captures the scene for me. If it says it does I can't find it in any of the folders. Can any one give me some suggestions on how to fix this? Should I download a new program for it? I use at least 3 different versions of Dolphin and none of them rip for me. HELP!