My first custom frame design! This one is a 2.5 inch freestyle frame supporting a top-mounted battery. It works quite good though I had to file down the camera mount tpu because the props were touching. Guess I'll have to increase the wheelbase slightly for the next version. The only m2 tpu camera mount I could find was at rotorgeeks. I might use carbon side mounts next time.
I took a chance on the JMT SIf4 flight stack. It's super cheap and performs fine, but there aren't any tx or rx pads! So no long range receivers. Connecting the tiny ribbon cables is a hassle and the connectors are fragile. I'd rather deal with the vertical pins that are common on other 16x16 boards so I'll be staying away from this stack from now on.
I also took a chance on some new motors, the 1103 lil floaters. Probably the lightest 1103s out there right now. They're quite smooth but not as responsive as I'd like.
I wanted to use the HQ T65mm props but I think I got a bad batch because I get crazy wobbles with them at high throttle and especially when throttling into a turn. I tried them on two other quads and had the same issue. The snap-on bi-blades I have fly off all the time so it's Emax Avan Rush for now.
All that aside, it flies great. I was pleasantly surpised by the Lumenier 300mah lipos. I didn't even know Lumenier made lipos until I went looking for a sub-450mah 3s battery.
It's heavier than the canopy frames but that's the tradeoff for being able to top-mount batteries. Arguably not worth it unless you're going for the smoothest freestyle experience. This frame has a wheelbase of 120 and just barely fits 65mm props. By comparison my 3in canopy frame has a wheelbase of 113mm.
UPDATE: I tried a couple more props. The Lumenier 2.2x3 props would cause the quad to flip out sometimes so those were a no-go. But the Gemfan RX2535 perform great. I'm using them in quad blade config. They offer excellent control and are so quiet you can sneak up on someone. This quad is a real joy to fly around the yard.
Flight Controller |
JMT SIF4 F4 Flytower SIF4 F4 Flight Controller + 13A Blheli_S 2-4S Brushless ESC + 40CH 25~200mW VTX 16*16mm for RC Drone FPV Ra
Xt-xinte.com
|
$29.29 |
Motors |
4 x LIL-FLOATERS 1103 8000KV
(2 builds)
Heli-nation.com
|
$55.80 |
Propellers |
Gemfan RotorX RX2535 2-Blade Propeller - Set of 8
Getfpv.com
|
$2.99 |
Propellers |
AVAN Rush 2.5 Inch Prop
(13 builds)
Pyrodrone.com
|
$1.59 |
FPV Camera |
RunCam Nano2
(184 builds)
Pyrodrone.com
|
$19.99 |
Batteries |
Lumenier 300mAh 3s 75c Lipo Battery (XT-30)
(3 builds)
Getfpv.com
|
$9.99 |
Misc Parts |
TPU Universal Camera Mount
Rotorgeeks.com
|
$4.05 |
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how did you end up liking my motors in the long run?
They're great. I've put them through about 200 flights by now and they still work like new. RotorX 2535 props are my favorite props on these. I prefer 2s batts for the extra flight time. It's almost as fast on 2s vs 3s when it come to forward motion. Only thing I'd want to change is the KV. Make it either 2s or 3s, not both.