Of course it's necessary. They're solar panels.

Hey I know this is probably gonna sound a lil bit weird or like a noob question, but has anyone really taken the time to think about what the pieces that stick out at every joint on a zoid really are? I mean seriously. I've not once thought about this question until my husband was asking me what those were, and why were they necessary. Now I've already done a google search of zoids schematics and nothing really comes up for this, so I started trying to think about all the possible things that they could be for, and so far the only real thing I can think of are either stress relieving parts. But at the same time I have to stop and ask myself why do they need to be that big and sticking out if that is what they are? So yeah, if anyone can give answers or just tell me what you think they are and why they are the way they are, I think this could be a fun little trivia thing. XD

75.111.115.250 01:30, March 12, 2011 (UTC)

on the models they're effectively nails that keep joints together while allowing for rotational movement. every other media simply followed the models. Slax01 02:01, March 12, 2011 (UTC)

Pretty much what he/she said.

The small joints are generally used to connect the parts together, and then a cap is usually placed over the part, to hold it together.

(Zoids Fanatic 03:26, March 12, 2011 (UTC))

According to the Zoids Bible/Monthly Graphics, the caps work as servo motors, but that's all I can read. Cheironyx 03:56, March 12, 2011 (UTC)

In New Century they are pretty well described as "stabilisers", specifically in the context of the Zero Panzer. Sylvanelite 05:51, March 12, 2011 (UTC)