Even though there is space between the BSGs to place the ants without having them intersect, they are still intersecting, thus unrealistic. I would rebuild the chassis so you can fit all of the components inside efficiently.Also, use 5mm plastic; lighter and stronger than 3mm titanium.
Heyyyyy. Welcome back. How was your trip? Bot looks cool. How does it fare in battle?
Hahahaha. Silverfish's brother. <3
You certainly make an efficient chassis.