I really like the metal camera cage on the Atlas 4 versus the Explorer LR4. I have been using the Floppy Proppy folding props on my Explorers to fit the drone in the top pouch of my backpack. But, the antenna sticks out and gets bent.
As soon as I saw the featured build by J. Chen (https://rotorbuilds.com/build/32893) with the folding antenna design, I knew this was going to be my next build! FlyFish had the frame and motors available in a combo, and it was even on-sale at the time I purchased it.
The frame is very high quality and goes together really nicely. I love that FlyFish makes their 3D prints available publicly. All the TPU parts were printed at home (Bambu P1S) with Amazon 95A filament. The cutout for the capacitor is a nice addition and I had an extra cap that fit perfectly there. Everything is crammed in pretty tight - I would have struggled for space if not for the AIO. I managed to stuff a powered buzzer right behind the camera to complete the build.
No maiden flight yet - I've been slowly building this drone over the winter. But warm temps are on the way and I'll have her in the air any day now! I'll post an update once flight tests and fine tuning are completed.
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I switched black dampers for yellow dampers and that is almost perfect, no more jello and the o3 recording is very smooth. I noticed better results with 3 blades props. I'm currently mounting an o4 lite for trying.
Yep, ATLAS 4 team!
On mine with original O3 antennas, Flash 1804 and a 4s 3000mah 18650 I can go up to 5Km. The limitation is flight time.
To save weight I will soon use 1404 3500Kv from happymodel. In fact, these motors are much too heavy and powerful for P30B Li-ion cells (36A max). I scaled down the throttle to 78%.
The Sony VTC6 only supports 30A peak, be warned or you will destroy them!
Maybe put an o4 lite to save more weight later, but the O3 is so clean and the wider view is a must compared to the O4 lite.
I can share my Diff if needed (3 bladed props)
Enjoy!
Thank you for your comment. I also suspected the 1804's might be a bit too heavy/powerful and will do a 75-78% throttle scale, as you did. But with 78% throttle on the 1804, wouldn't the EX1404 2750kv motors be a better replacement choice than 3500kv? Either way, the 1404's seem to be the better size for this type of build. Can't wait to do some flight tests but cold weather has been an issue.
I tried my 1404 3500Kv this afternoon on the Atlas and they work at 100% without limiting the power (around 34A) which is beneficial since I save 20 grams and the inertia is lower on all axes. The 1804s are more torquey but heavier and having to clamp them is not good for performance. My friend uses the same 1404 3500Kv on his Chimera 4 and it's very good with li-ion for slow freestyle, crusing and mid-range. The 1804s are very good for freestyle, on a 3.5" or 4". For Kv I think that 3500 is very good because less KV leads to softer reactions and more prop-wash.
Right now I have jello on my O3 since it crashed and it's a problem I can't seem to resolve. When everything works this drone is great, but you know, FPV is not a smooth path!
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