11-Aug-2023, 04:31 AM
This was one of the first DJI BNF whoops in its day (ok four years ago maybe wasn't that long, but in quad years it sure seems like it was a long time ago). Its previous owner apparently didn't have much use for it and let it go for cheap.
This is Betafpv's 95x, the OG V1 (it was eventually replaced by V2 and V3 versions). It weighs in at a hefty 110g, running 1106-4500 kv motors and swinging 2.5" props. This one came flashed with Betaflight 4.1, an external Frsky receiver, and a dual-board AIO (or is it All-In-Two). Its nice that it is a F405, but oddly only 2.5 UARTS are exposed. The ESCs are rated 3-4S 16A and BL_Heli32.
![[Image: tCU7BPDl.png]](https://i.imgur.com/tCU7BPDl.png)
The previous owner already cut away the ducts, so some weight savings there, but a vista with full-sized DJI camera on a tiny micro? I think thats just too heavy, so off it goes and will be saved for a bigger build. That canopy is also like a tall tower rising high above the props.
![[Image: SBaP7IFl.jpg]](https://i.imgur.com/SBaP7IFl.jpg)
Instead lets pull a walksnail 1S setup from another build. The camera, VTX, and antenna are all fitted into the canopy making it a tidy package to move from quad to quad. The canopy holes are a perfect match. Just plug/unplug the VTX and secure three screws. And look at that weight savings
![[Image: 0Riek2Xl.jpg]](https://i.imgur.com/0Riek2Xl.jpg)
The sane thing would be to power the VTX directly off the FC's 5v rail. Betafpv tends not to give the power rating of their BECs but I suspect it should be fine. But why keep things simple... I wanted to test out the Adafruit BEC, a 3.3v step down buck converter that will take up to 21v.
Printed a TPU brace to hold the BEC, and also connected the BEC's enable pin to the FC for a pit switch. Thats the blue wire soldered to the back of the plug on the FC.
This adds around 2-3g, but I don't think it will be noticed on 4S. The spacing is a little tighter though with the extra layer.
![[Image: ZB3dYRsl.jpg]](https://i.imgur.com/ZB3dYRsl.jpg)
All put together, still a little hefty for a 2.5", but a significant weight savings compared to its original design. And it looks so much cuter.
![[Image: dGenRHrl.jpg]](https://i.imgur.com/dGenRHrl.jpg)
Flashed to BF 4.3 (wasn't sure WS OSD would work with 4.1), added an ELRS RX, and was good to go. When I went to arm the quad, oddly nothing happened... Moving the throttle did nothing, but moving the pitch/roll spun up individual motors?!?!
Ok, I had my turtle mode switch mapped backwards so it was in turtle mode. Corrected that and it was flying. Only a short test flight on 3S though, as soon as I punched the throttle, both clockwise props flew off. Yup guess you better use props screws on 1106 motors. I don't know what it is with prop molds, but it always seems the clockwise props are looser fitting than the counter props... now I've seem to lost all my 2.5" clockwise props.
These motors were very quiet though, at least on 3S. Got to get some more props and put on a 4S pack.
This is Betafpv's 95x, the OG V1 (it was eventually replaced by V2 and V3 versions). It weighs in at a hefty 110g, running 1106-4500 kv motors and swinging 2.5" props. This one came flashed with Betaflight 4.1, an external Frsky receiver, and a dual-board AIO (or is it All-In-Two). Its nice that it is a F405, but oddly only 2.5 UARTS are exposed. The ESCs are rated 3-4S 16A and BL_Heli32.
The previous owner already cut away the ducts, so some weight savings there, but a vista with full-sized DJI camera on a tiny micro? I think thats just too heavy, so off it goes and will be saved for a bigger build. That canopy is also like a tall tower rising high above the props.
Instead lets pull a walksnail 1S setup from another build. The camera, VTX, and antenna are all fitted into the canopy making it a tidy package to move from quad to quad. The canopy holes are a perfect match. Just plug/unplug the VTX and secure three screws. And look at that weight savings
The sane thing would be to power the VTX directly off the FC's 5v rail. Betafpv tends not to give the power rating of their BECs but I suspect it should be fine. But why keep things simple... I wanted to test out the Adafruit BEC, a 3.3v step down buck converter that will take up to 21v.
Printed a TPU brace to hold the BEC, and also connected the BEC's enable pin to the FC for a pit switch. Thats the blue wire soldered to the back of the plug on the FC.
This adds around 2-3g, but I don't think it will be noticed on 4S. The spacing is a little tighter though with the extra layer.
All put together, still a little hefty for a 2.5", but a significant weight savings compared to its original design. And it looks so much cuter.
Flashed to BF 4.3 (wasn't sure WS OSD would work with 4.1), added an ELRS RX, and was good to go. When I went to arm the quad, oddly nothing happened... Moving the throttle did nothing, but moving the pitch/roll spun up individual motors?!?!
Ok, I had my turtle mode switch mapped backwards so it was in turtle mode. Corrected that and it was flying. Only a short test flight on 3S though, as soon as I punched the throttle, both clockwise props flew off. Yup guess you better use props screws on 1106 motors. I don't know what it is with prop molds, but it always seems the clockwise props are looser fitting than the counter props... now I've seem to lost all my 2.5" clockwise props.These motors were very quiet though, at least on 3S. Got to get some more props and put on a 4S pack.
![[-]](https://intofpv.com/images/collapse.png)
