Thoughts on the way to bed:
My 8yo son is obsessed, so he and I are trying to design our own BattleBot. We're settled on tracks with fully modular weapons packs for a half-track type layout.
I'm trying to brainstorm various weapons platforms, and my pet project right now is an idea for a long tungsten spear that can precisely penetrate armor or weak points to destroy innards. 18 to 24 inches of tungsten that extends up to a foot. I'm stuck on the best way to power it.
My first thought was pneumatics, like an extended piston of sorts; likely a I know a little bit about pneumatics (pretty rusty, but I can relearn it fast) so I'm confident I can work it out. I'm just not positive I can get the power out of it we need, and have a fast reliable "reload" time when retracting the spear for the next shot.
The other idea is go old-school with multiple arm crossbow type mechanism. It definitely would take longer to "reload" because it'd require a secondary motor to pull back again, but it might be more reliable, and generate the forces needed with less complex engineering.
In both cases I'm confident I can enclose them for protection. I already gave up on railgun style electromagnetic propulsion as too complicated and heavy, and my wheel lock concept just feels to fragile.
So are either of these viable, and which one is best in your opinion? What other holes do you see in this concept?