This is my 2nd toothpick project.  A backyard 2S flyer.  Based on the same frame as my first attempt.

• LeDrone club pickle frame - 65mm / 2.5" prop size
  
• JHEMCU Play F4 AIO FC with 5A BLHeli_S 1-2S 4in1 ESC
  
• RacerStar 1103B - 10,000KV motors
  
• crappy clone frsky RX with diversity antennas and telemetry
  
• HGLRC nano VTX
  
• Runcam racer nano 2 camera
  
• GEMFAN 2.5" props (I think, lost the packet)
  

2S 520mAh GNB pack.   GIF speed is a little faster actual speed. Not much though!



Some takeaways..

The pickle frame is a bare bones kits, you get the basics.  The provided camera "canopy" is a few thin strips of TPU - I used a design from thingiverse printed in TPU instead.   It is a very cheap frame though and you can buy a few without hurting the pocket.

The JHEMCU flight controller is the cheapest F4 whoop AIO controller on banggood, it works a treat but is only rated to 2S so best paired with high KV motors if you want some speed out of it.   The motors pads are hell, very close and very small.  You are provided with motor plugs to solder on the board if you want but I direct soldered.   

The racerstar motors are cheap but perform well.  The top end doesn't have much variance but the low end controll on the throttle is pretty good.  They seem to be able to turn tri-blade props pretty well.  I haven't had much time to compare with 65mm bi-blades but I will put them on soon.

I forgot the name of the clone RX.  it was like $10 on banggood.   It has diversity RX and telemetry and a usuable distance of approx 50m.  lol.  Shit as.  I will change it out soon.

Unlike the RX, my choice of VTX was better.  The HGLRC nano VTX is smaller than my thumbnail.   Works well and great video when paired with the dipole antenna that it comes with.  25 and 50mW is available. 

Running RPM filters on 16.77 BLHELI_S firmware.  Have moved the filter sliders up 2-3 notches and no fly-aways and warm motors at most.
Working on PIDS.

Will post builds pics soon.  This was a real bugger to build.   Still balancing karma by flying it after work each day before I post more pics, lol..

cheers,
ph2t.

Trying out a new canopy that sits the camera lower.  there is less TPU so it's lighter but feels pretty rigid too, so I'm keen to try it out.

So far on tri blades the quad flys well, on biblade 65mm it's a bit jello-y (is that a term?)...

I've had a chance to fly the new canopy now and it's much better in the jello dept.

I reakon that the higher the camera is mounted away from the chassis there is a greater chance of jello.

The canopy reduced the net height of the camera by approx. 4mm. Made a difference.

it comes to „pendulum“ effect, i beleive this cause the jello if the fc have to compensate that all the time. i had benefits if the canopy had angle forward, the cam was a bit more in the front not center. i beleive a better shape for flying forward. with this canopy https://www.thingiverse.com/thing:4014723
as a gram is much on a ul nano, 4mm are a few percent..
i didnt allready but i like to try topmounted battery on a very light nano, as the center of gravity is around the props, this should improve the performence in my theory. as they are very lightweight, its less issue about battery damage than on a big quad... at the moment tbs source micro is my favorite;
https://www.team-blacksheep.com/products...urce_micro
but i am still looking for frame options. if someone know a good topmounted frame option would be nice

pendulum effect, I didn't think of that but makes sense, thanks hugnosed!

I have the source micro, it's a bit large. Maybe try the armattan tadpole?

tadpole is a nice option
did you use the source micro topmounted, what was your impressions about top mount?