Making an SFM model compatible with Garry's Mod

I’m looking to get my model ported from Source Filmmaker to Garry’s Mod.

Problem is that I don’t know how to add physics to a model to make it a ragdoll, rather than a static effect.

I’ll try and do this myself, but if anyone can please help me, it’d be appreciated!

You need to make a collision model for the ragdoll and you need to add joint constraints (I think).

Here’s some information on it. Physics and Ragdolls - Valve Developer Community