NBD Acrobee75 replacement frame

thingiverse

Requires the carbon fiber bottom plate that comes with the NBD Acrobee75. I can upload a model of it if anyone wants, (EDIT: 3D printed bottom plate is included, but not tested) but it wont work as well as a printed part, this is the backbone of the model, it holds the motors in the proper place so your props don't slam into the ducts. Printed with a 0.3mm nozzle at a 0.15 layer height. You will probably need a brim to keep the small footprint from lifting off the bed. The frame itself can be printed with PLA or ABS, or anything stiff, really. Your choice. The battery holder serves two purposes. Obviously it holds the battery, but it also holds the frame in place at the right height. I'd recomend printing this part with TPE/TPU so it can also act as a shock absorber. 3D printed parts using ABS/PLA are much more brittle than a injection molded part, if the battery holder has a bit of flex, it can take a lot of the stress away from impacts and get you a lot more millage out of this frame. The circular thing with the 3 holes are feet for the motors. It may not be 100% nessasary, but since the motor is being mounted directly to this frame, I wanted to add a bit of thickness so the screws don't touch the windings of the motor. I also printed this with TPU/TPE, but anything will work really. Cura says the weight is ~8g (not including the carbon frame), and the cockroach frame from NBD is 7g. So not much of a difference overall. This model also has support for the tiny crossfire antenna to be mounted on the back.