1S 18650 Explorer #nanolongrange & iNav!

By V-22 on Mar 15, 2021

25  1,871  14

Credit to Dave_C for the pioneering work here! This is my attempt at building his vision and see how far this platform can be pushed. Still a lot of work to do, but it's built and flying! I tried a few different materials for the frame: Nylon, CF-Nylon, and CF-PETG. The frame in Nylon weighs 13.1g, but is fairly flexible. The CF-reinforced Nylon frame weighs 12.4g and is much stiffer. The CF-reinforced PETG is a little heavier at 16.2g, but much stiffer still. All printed at 20% infill. I'm not sure what the PLA frame weighs. Anyone know? I decided to use the CF-Nylon frame for this build.

I managed to get iNav running on the DarwinFPV AIO, and it works well. I've tested position hold and RTH, and will try a waypoint mission soon. At 119g AUW I'm getting 10 min flight times (40F/5C, 10mph wind). I'm sure there is significant room for improvement. Edit: Fully charging the battery to 4.2v, doubling up the nickel strip on the battery, and replacing the bad motor have greatly improved flight times.

It looks like there is a length limit for the description, so see the full writeup here: https://intofpv.com/t-1s-18650-nanolongrange?pid=133445#pid133445

Full build log and discussion here: https://intofpv.com/t-1s-18650-nanolongrange

Photos

Discussion

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Yinka_Brasil   Aug 28, 2021  

I know it hasn't been long, but how is that FC holding up? I want to buy one, but I'm a little apprehensive, since the company doesn't have a reputation (good or bad)

Tom324156   May 30, 2021  

do you think 0802 motors would work?

V-22   Jun 04, 2021 

I think 0802 would be too small. They almost certainly wouldn't be able to swing 3" props and lift such a heavy quad.

Tom324156   Jun 04, 2021 

thanks

V-22   Jun 05, 2021 

I just saw this over on RCG. If you really strip the frame down it looks like 0803 might work.
https://www.rcgroups.com/forums/showthread.php?3908773-Another-nano-long-range

m3sgal   Apr 29, 2021  

Isn't a barometer required along with GPS/Compass in order to be able to use iNav's position hold and RTH features?

V-22   Apr 29, 2021 
1

Yes, see the build thread. It has both. V1 of the DarwinFPV 1S AIO board had I2C pads broken out which made it easy.

KaityLynn   Mar 20, 2021  
2

Awesome build! Totally my next quad :) Following the thread on the forum. Great work.

Joshua_A   Mar 20, 2021 
1

^1+ same here!! amazing!!

BUDLoNG   Mar 15, 2021  

what kind of flight times?

V-22   Mar 17, 2021 

See the linked thread for discussion. I'm currently grounded with a bad motor and waiting for a replacement, but in the meantime I loaded up iNav and I'm going to see whether I can use that for controlled hover tests and waypoint missions to reproducibly compare efficiency and flight times.

BaTTaN   Mar 16, 2021  
1

Nice build V-22! Like many others I'm also working on a 18650ish lol builds. I’m working with Dave_C frame’s using SMD SMT trays. I’m using one that will fit one 18650-21700 cell and another double 18650 tray. Heres a link to Toms review of Dave_C's fully printed build if youve not seen it.
https://hackaday.com/2021/03/03/attack-of-the-flying-18650s/

NightBoat   Mar 16, 2021  
1

Very cool! I've been waiting for one of these to pop up on here. I am working on one of these too. I made an alteration to the original stl by integrating a battery holder directly to the frame, just need to add the gold plated contacts. I'm interested to know more about the flight experience with your build!

OptimaZe   Mar 15, 2021  
1

I have it all printed up in PLA+ and with the 4 screws that hold the top and bottom together it weighs in at 16.9 grams. Very cool build! Can't wait to get mine in the air.

V-22   Mar 15, 2021  

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