Well, you can add stability? Pneumatic parts?

I'd say use pistons, add some Takanuva-esque 'double hip joints", or Balance him/her/it out with his/her/its arms.

LC®

Yeah, I know of those, and I shall most likely try them, but I was wondering if there were any other tactics out there...

~GBG~

One thing that many bipedal mocs have in common is hip dysplasia..... XD usually the hips aren't strong enough. Be sure that it is well supported, because if the moc is heavy (which a good lot of titans are) it will fall over easily.

Find a way to use pistons in the leg joints, but hide them, or simply use more than one socket in the joints. Try to go for rubberized ones, or the new style from this years sets instead of the old style.

Just try things. You'll be suprised at what you can come up with when you mess around with parts.

Fix that center of gravity, if you can.

Pistons are mostly annoying to look at.

As far as aesthetics go, I think pistons look fine and give a cool, mecha/robotic feel. It all depends on your taste.

I've found that wide, flat feet work well in keep them standing, but if that doesn't work, hips would be the place to focus. A loose hip is not good, and I regretfully suffer from neglect to that.

-Dr. K

Fix that center of gravity, if you can.

Pistons are mostly annoying to look at.

This one. Pistons are mostly fail on a none Cags MoC.

Also I use folded up paper for loose joints. Put it in before the ball joint and it works fine.

I think that the problem here is centered mainly in the hips, as most of you have suggested. I guess that that is the place to start, reinforcing them.

Roa, how would you use two sockets in a joint? And what did you mean by "the rubberized sockets"?

As to pistons not looking good, I think that, as long as they don't stick out at an awkward angle, they would look just fine. After all, these are bio mechanical being we are building here! Not to mention the pistons would go perfectly with my color scheme...

And Draco, what did you mean by "none Cags MoC"? And I don't really think that I want to use paper. I don't think that it's cheating, but I would rather overcome this obstacle using LEGO pieces only.

Thanks guys for the advice!

~GBG~

Try this design.

Hmmm... yes, that's very interesting. I see what you all are getting at then. The only problem is, how do you get the leg to bend outward now, when the sockets only go front to back? I shall think about using the design however. Thanks!

Oh, and Bunda, I have the opposite problem as you. I have much less experience with small MoCs! For some reason I usually end up building larger guys... I don't know if that's good or bad to be honest.

~GBG~

Roa and Czar's idea is one of the best for knees, and possibly elbows too. For shoulders and hips you'd have to do something different, because you need to support weight as well as leave room for flexibility.

For hips something like the Kikanalo has is a nice design. That design itself is rather limited, but the idea is there: combining a variety of balls and sockets and friction axle/pins so you have a construction that supports the leg without (ideally) impeding flexibility. I'd suggest making the support from the back, since that's how it is on us humans. Icarax and Takanuva '08 have the right idea, but theirs just looks awkward.

For shoulders, Maxilos and Takanuva '08 both present suitable designs. Maxilos gives true human shoulder flexibility and also provides upper body support, but his actual arms are not very supported. If you have the set, you can easily see why; the pistons provide strength while the throwbot arms give flexibility – the ability to move up, down, back, and forward even before you get to the shoulder joint proper. Takanuva actually supports the arms, since he has the Avotoran limbs at his back to hold up his arms and let the shoulders move slightly back and forward and up and down.

The ideal solution would combine those somehow, a way to give shoulder flexibility and hold up the arms at the same time. How I couldn't say specifically, but experiment with pistons (these are among the simplest solutions, because they can stretch without a complex mechanism) and pre-bent limbs and Hordika necks and double sockets.

For the waist, Maxilos is again a good solution. But you might be able to hide a single piston in there somewhere... or work with Hordika necks and double-sockets at the back, perhaps?

For digitigrade legs (the reverse angles you mentioned), the best way to achieve balance is really to plan the center of gravity properly so the legs support it...

And a general rule: the bigger something is, the more realistic you can get with flexibility. Do this, because a stiff-and-straight large MOC just looks invariably awkward.

Ah, thank you so very much ToM! That is exactly what I need. I shall take a look at the sets you mentioned and the featured that they posses in their joints. Once again, thanks very much!

~GBG~