EXACTLY! Gravity does take it's toll. I did forget to make a hole thoguh the bottom leg
I fixed that
And Actually, to answer your question, the joints I have made, so far, are a complete success. The Joints hold firm, and what I do to do this, is I do make the cylinders with edges. This is mor effective, because it holds it's place when posing.
For example, a one rolled cylinder, pure cylinder form with no edges, works. But not effectivly. The joints will be able to move more freely, causing the "slump" or sort of mess up in the process.
But, with edged typed cylinders, or whatever you want to call them, they run into those holes. There are 8 edges, so the cylinder will run into the hole 8 times somewhere. They'll hold it's place in correctly, and it won't look like a lazy robot
You see, I had the same problem when building my Hazel Gundam. Since it was TOTALLY Scratch, the joints, I wasn't sure how I'd make my cylinders. Rolled cylinders , smooth ones, tend to have their own motion when you swing them in the direction their meant to go in. However, when I was working with Hazels hip joints, I tried Hexagonal cylinder shaped edges. They stop, like I said, and hold the direction of pose in mid air. They work like MAGIC! I suggest trying it!
By the way, your Gundam design is fantastic ^_^, and for the record, I think I'm beating you sign1
(Sorry if noone understood the conversation)