This battery tray moves the battery as much to the front as possible (at least for my car setup ;) ). It utilizes the existing holes in the chassis, so it is not needed to drill into the rails. It leaves enough room between the tray and servo/axle to get the shocks fully compressed (which usually doesn't happen) and allows to completely shrink the axle.
Inner size is around 80x40 mm, this fits well for my short 3S lipos.
CAD files for FreeCAD are incuded, so you may modify the parts easily to your needs.
The author marked this model as their own original creation.