So recently i have experimented with making very simple mechs on the builder config. By now i have made a simple Lizard-like mech that moves its legs, but i wanna do some more complex stuff like better humanoid robots for example. That would help alot!
There's a lot of examples of mechanisms here: https://mekoramaforum.com/threads/sharing-new-and-old-mechanisms.220/ @97 NinetySeven has made some great moving creatures, like this one. But I don't remember any humanoid ones.
A humanoid robot? Here is @Martin Magni's level Golem. You can open it with mekostudio to see the mechanism.