Okay, here goes my first Ultra Heavy Weight!

Behold
Shredder X! Virtually unstoppable outside of a freak Havok explosion, yet to be beaten in its current incarnation (though I've only used it against AI so far...)

The asymmetrical vertical spinner is hugely effective, powered by the Perm 80 motor. On one side is a combination of T-shaped beater bars, triple cutting teeth and side-on 30mm crushing teeth, while on the other side are four 40mm crushing teeth. All on two sets of three-layer angled plates for additional protection for the motor powering it. It spins upwards, of course.


You might notice the huge amount of armour plating I have added to the outside (and also used for the srimech), in the form of a dark extender stack + dark armour plate combo. I love the aesthetic it gives, and it is rather sturdy armour too - out of the AI bots, only the HW Shell has managed to break through any significant portion of it.
It's also surprisingly fast, agile and powerful at pushing, especially considering its weight and the fact it runs only on 2 blackbirds.
It's taken a lot of work to get this robot
just the way I want it, but I'm finally happy enough with it to post it. Now to relax before finishing my family of MW + HW + UHW robots.