Adapter to allow using battery straps in RC cars. Work in progress.
Redesigned in Fusion 360 for CHAMFERRRRRS and eventually turned out in multiple versions - use as needed, remix as needed.
Replace standard battery posts:
with these two printed parts and you can use a battery strap (more flexible and sturdy).
Battery straps are "BangGood specials" - 4 USD for 10 straps, very cheap and good ESUN Yellow ABS, battery is the (quite large) Zippy 6000 mAh 2S2P 35C hardcase.
The car is the always awesome HPI Maverick Strada MT Brushless, also known as Redcat Volcano EPX Pro, HSP Brontosaurus, Exceed Infinitive, Himoto EMXT-1, Amewi Torche Pro (which are basically the same car).
I've included all intermediary models in case somebody finds them useful.
The final versions are:
BattHook_M26_shifted.stl which have an offset screw in order to fit properly into the chassis.
eSUN ABS, PETG, nylon
It can be printed laying flat, but resistance will be lower (as the strap will pull perpendicular on the layers). Best printed vertically with supports.
Hole size is M2.6 ISO, which fits an M3 screw very well (the screw will thread itself into the plastic and be quite sturdy).