How can I make my particles freeze in time and convert them into a Mesh? I made a particle system but now i want to extract the particles as a Mesh, or just froze the particles in time, for render time, is this possible?
Find the frame most suited to your goal with the particle system.
Press the Convert button of the particle system modifier, you will have duplicates.  Make a selection of only the emitted particles. Do not include the original particle system mesh.
Join the Meshes with Ctrl-J