cad

[Serum]

I would personally take less thick material. the gmaxx lower plate is about 2.3mm thick. which is strong enough to hold batteries. You will be surprised how much a total assembly will weight. not kidding.

The batterystraps; take cups! i don't know if you did measurements on cells you have got? but gp3300 are different than 3700's and so on.. I hate the slots for the batteries, you are better of with a tub kind of thing that holds the batteries.