With armour its just as much about thickness as it is the angle and how its mounted.

Shock mounting is becoming more common as spinners get even more powerful; there was a time 5mm mild was good enough in a HW, now you couldn't even use that in a FW.

You never want to present a corner for a spinner to peel away at. 90 degree corners are bad, 120 is pretty good, 135 is great. Of course all of that is relative to the shape/design of your robot.

https://66.media.tumblr.com/4f879d6a...nf23o1_540.png

The wheel covers here are great, nice chamfers and nice and thick. The sides of the wedge... not so much. If you extended the HDPE down the side of the robot to prevent spinners peeling up your top and bottom Hardox, that will reduce that issue significantly. If you consider the sides consumable and have spares then you can have a spinner chew on that edge for 3 minutes and the just replace it.

As a first design goes, its pretty good. Well iterated and it looks strong, with internal space for a weapon down the road.