ZMR 250 Battery Grip

thingiverse

2 different versions of battery grips I've designed for the zmr/qav 250 chassis. I was having issues with my LiPo getting ejected during crashes when just strapped to the top, so I designed this lightweight piece in order to get a better grip on the battery, as well as to space it out and prevent the screw heads from digging into the battery. This is probably the lightest option available for securely top mounting a LiPo on the ZMR/QAV 250 chassis. The V1 'smaller' was designed in sketchup. It works well when you don't have a camera on the top, and fits my 1300/1400 mAh or smaller well. The V2 'larger' was my first time designing in Fusion 360, which is so much better. I re-used dimensions and design language from the first design, but tweaked some thing to meet my current needs. This design shifts the battery to be held further back on the chassis, leaving room for the camera mount that I am using. It also has been made long enough to hold the 1800 mAh battery that I have. This design is intentionally less balanced than the V1, and may not prevent a front battery ejection as well as the V1. Either design is designed to be printed in TPU or another flex in order to get a good grip on the battery. You may be able to print it in a hard material and still get good results. I've included the design files if you feel like attempting to edit. Let me know if my design helped you out!