Hyperlite Floss 3.0 HD 7" Long Rang w/ GPS

By wrong17 on Mar 10, 2021

22  1,129  22

This project originally started in July of 2020, but I lost interested and stopped working on it. But recently my friends drew my attention back to long range flying, so now I am back on it again. Last year was my first-time trying Lithium Ion batteries as flight packs and the result were impressive. If you know the batteries limitation and its purpose of long flight times, then you can better understand performance of these batteries. My latest test was building a 21700 4200mah 45a 6S lithium ion pack and that gave me over 25 minutes of flight time with a 7” quad. That is why I am here now, building a lighter quad with added GPS functionality.

When building a 7” quad for long range flights, reliability is something that is very important. You do not want to look for a quad that crashed on the side of the mountain 2 miles away because something failed. That is why I am kind of hesitant about the iFlight F4 40a AIO FC that I am using for this build. I do not have any history with this board but after reading the reviews, it sounds like a hit or miss. Other than the slower F4 processor, it has everything I need for this build (One UART for the Crossfire RX, One UART for the DJI Air Unit, and one UART for the GPS). To make it even easier, this FC a plug specifically for a DJI FPV system so I do not need a BEC because I am running a 6S setup.

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All the electronics is very straight forward, but the bulk on my time was searching for 3D models and remixing it to suit my needs. I spent a few days, remixing files and 3d printing protype of GoPro, GPS, and Antenna mounts. Back in July when I first started building this quad, I thought I could use the same GoPro case as I would for all my other quads. After printing one out, I found out that it will not work because I will get props in the GoPro camera’s view.

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To make a long story short, I combined a few different mounts to come up with what I have now. This mount moves the camera a little higher and forward to help clear the props view. If you use 4K Wide 16:9 mode on the GoPro you will not get and props. But if you try using 2.7K with superview, you will get props still.

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Another thing that is worth mentioning is the cool GoPro mount that M490fpv designed (https://www.thingiverse.com/m490fpv/designs). Why I thought is cool about this mount is because it has a lens guard that helps lock the GoPro in the mount. His original design was made for a different quad, so I had to remix it to fit mine and I also added a hook to help lock the lens guard better.

Update (March 23, 2021) - New Stack

I think I should have gone with my gut feeling about the iFlight F4 40a AIO, because it might of cause a midflight failure. The strange thing is that the none of the electronics was broken. I tested the motors and ESC, and everything was working fine. I do not trust the iFlight F4 40a AIO anymore, so I swapped it out for a full 30x30 stack, T-Motors 55A Pro II 32bit 4 in 1 ESC and Holybro Kakute F7 HDV FC. To use that stack, I had to raise top plate 10mm (replaced the 25mm standoff to 35mm). With all these changes, I gained another 20g in weight.

Part of the Antenna and GoPro TPU mount broken in the crash, so I had to print another one. This time around, I used a softer TPU, and I hope it would be more durable. I also changed the color theme and went with purple and green because that was on the 3D printer already.

Update (October 24, 2021) - Lower GoPro mount

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During the summer I went mountain surfing for the first time, and I learned that I should have set the GoPro to “Superview.” The footage I recorded looked like it was cropped off and you keep waiting for it to tilt up, but it never happens. The FPV footage looked great because it had a wider field of view. With the old camera mount, I had a problem with the props being in the camera’s view when I set the GoPro to “Superview.” And I also felt that the GoPro was sitting a tad higher than I like and made it top heavy. So, the updated mount, I lowered the camera mount and pushed it forward. I also tied in the GoPro camera mount to the top of the FPV camera mount so it is a lot studier too.

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This is how the old mount looks like. It is not a huge difference, but atleast it now does not have any props in the GoPro camera's view.

Videos


Photos

Part List

Frame

Hyperlite Floss 3.0 Long Range 7" Frame (4 builds)
Pyrodrone.com
$59.99

Flight Controller

Holybro Kakute F7 HDV 30x30 Flight Controller for DJI (28 builds)
Racedayquads.com
$37.99

ESCs

T-Motor F55A Pro II 32Bit 55A 3-6S 30x30 4in1 ESC w/ BEC (56 builds)
Racedayquads.com
$93.90

Motors

4 x BrotherHobby Avenger V2 2507 1850KvDefault Title (17 builds)
Racedayquads.com
$99.96

Propellers

HQProp DP 7X4X3 Propeller (Set of 4 - Light Grey) (56 builds)
Getfpv.com
$3.99

FPV Transmitter

DJI Digital FPV Air Unit - Ultra Low Latency 720p 120FPS Digital HD (256 builds)
Racedayquads.com
$179.00

Receiver

Team BlackSheep TBS Crossfire Nano RX - Heli-Nation (1291 builds)
Heli-nation.com
$24.99

Radio

Team BlackSheep TBS TANGO 2 V3 PRO RC RADIO (78 builds)
Heli-nation.com
$199.99

Goggles

DJI Digital HD FPV Goggles (125 builds)
Getfpv.com
$529.00

3D Printed

Floss 3 Node - Long range air Unit and antenna mount. by PlaceX
Thingiverse.com
See Site

3D Printed

Floss 3.0 DJI Air Unit Mount 5 inch by gurossi
Thingiverse.com
See Site

3D Printed

Hyperlite Floss 3 Command Center - GoPro + VTX + RX + GPS + LED + Antenna Mount with XT60 and Capacitor Mount by KevPV
Thingiverse.com
See Site

3D Printed

Taycan Hero 7 2 piece GoPro mount by M490fpv
Thingiverse.com
See Site

3D Printed

Diatone Taycan BN-220 GPS mount with VTX and Receiver antenna by Joe111111
Thingiverse.com
See Site

3D Printed

Hyperlite Floss v2 - DJI FPV conversion
Cults3d.com
See Site

3D Printed

Hyperlite Floss 3.0 7" Long Range GoPro 5/6/7 GPS FPV Camera XT60 Cap Mount by wrong17
Thingiverse.com
See Site

HD Camera

GoPro Hero7 Black — Waterproof Action Camera with Touch Screen 4K Ultra HD Video 12MP Photos 720p Live Streaming Stabiliza (26 builds)
Amazon.com
$389.99

HD Camera

GoPro HERO8 Black - Waterproof Action Camera with Touch Screen 4K Ultra HD Video 12MP Photos 1080p Live Streaming Stabilization (18 builds)
Amazon.com
$329.99

HD Camera

BETAFPV Naked GoPro Hero 6 Black for Beta95X Cinewhoop Drone Quadcopter
Ebay.com
$219.99

Hardware

90 DEGREE MMCX TO SMA EXTENSION CABLE SOFT RG178 (3 builds)
Pyrodrone.com
$1.95

Misc Parts

TBS Crossfire Immortal T Antenna V2 - Extended (13 builds)
Getfpv.com
$5.95

Misc Parts

TBS M8 GPS Glonass (40 builds)
Getfpv.com
$10.50

Battery Charger

HOTA D6 PRO Dual Charger AC200W/DC650W 15A w/ Wireless Cellphone Charging (9 builds)
Pyrodrone.com
$118.00

Soldering Iron

TS100 Portable Programmable Smart Soldering Iron (258 builds)
Racedayquads.com
$58.99

Backpack

Lowepro QuadGuard BP X3 - Drone Backpack for 4 FPV Quad Racing Drones and 15" Laptop w/Exterior Mounts (Black)
Amazon.com
$286.00

Accessories

iFlight Crystal HD Patch and Stubby 5.8GHz RP-SMA Antenna Set for DJI - LHCP - Carbon
Racedayquads.com
$56.99

Accessories

FuriousFPV Smart Power Case V2
Helidirect.com
See Site
Show stores (9)

Discussion

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mozcengel   Mar 01, 2022  

Hello, I have the same drone, now I made the structure based on your design and everything looks beautiful. Is it possible to share your pid page in Betaflight, with what values ​​did you reach the best settings?

Show 2 more comments
wrong17   Mar 02, 2022 

I just uploaded the images to the image gallery for this build.

wrong17   Mar 02, 2022 
1

Yes, I am using small motors to keep the weight low. I plan to use this quad as a cruiser so I do not need the 2807 size motors. Plus, 2507 motors is more than powerful enough for what I want it to do. Because of the higher KV motors that I am using I put a throttle limit of 70%.

mozcengel   Mar 02, 2022 

thanks for the pictures i will try

mozcengel   Feb 07, 2022  
mozcengel   Feb 07, 2022  
mozcengel   Dec 08, 2021  

mmcx to sma how many cm should i get.

Show 1 more comment
mozcengel   Dec 14, 2021 

Thanks, I bought 10 cm, it will be a little long, but I will fit it somehow. I just bought Frame and you've been using it for quite some time by the way. I'm going to install a stack, not aio. Do you have any problems in your last experience by making the standoffs 35 mm? If you have any suggestions, I would be happy to help.

mozcengel   Dec 14, 2021 

Is there an insulation between the air unit and the flight controller? Also, is 3d printing for the air unit enough to fix it?

wrong17   Dec 16, 2021 

I actually switch out the AIO board with a full 30x30 stack because I need something reliable. I am also using 35mm standoffs and I am able to fit the Holybro Kakute F7 HDV FC, TMotor F55A ProII 55a 4in1 ESC, and the DJI Air Unit. The only thing I have between the Air Unit and FC is the 3D printed mount and they do not touch each other. I think It really depends on the FC/ESC stack you plan to use and how tall is it. Take a look at this picture, I hope this gives you a better idea of how I have it setup: https://rotorbuilds.com/pictures/f_1922_lMepXUBpHNS8D36XUbAFBFTdK.jpg

henrylambert   May 16, 2021  

This is such a good looking build. I am looking into building a 7 inch long range quad. What would you change after flying this? I not have dji so it will be analog for me. I really like the colors you used!

wrong17   May 17, 2021 

Thanks! After flying this and a 7" source one the only things I would change are: The GoPro camera angle for the because I can see the prop in view when I use 2.7K superview, It is fine when it set as 4K Wide. I really like the lighter weight 2507 motors but 1850kv is a bit too high, so I had set a throttle limit to 70%. I think 1300kv motors would be ideal for a 7" quad.

sfonkter   Apr 26, 2021  

Hey man this thing looks really cool. I was looking at the Floss command center 3D print but it just looks so top heavy and just, well, heavy heavy. I like how you made the whole mount shorter and put the GPS on the back instead of a big mast like the command center does. I have a couple questions:

  1. is your GoPro base compatible with the command center gopro mount? I mean will the hole spacing line up? EDIT: I just downloaded it and looks like they line right up, disregard this question!
  2. how does the GPS do on the rear brace (interference-wise)?

Also, just food for thought, I did a bunch of experimenting with mine and found that completely removing the front and rear braces actually made an improvement in vibrational performance and made it easier to tune the little bobbles out; not sure if you experience what i'm talking about but if you do try different brace combinations (front only or rear only) or remove them completely. I know it's counter-intuitive but I did lots of blackbox logging to get a decent tune on this frame and found that mine is best with no braces at all.

wrong17   Apr 26, 2021 

yes, my version of the gopro base is compatible with the command center gopro mount. They are all interchangeable. The only difference is that the mount I made solid and has holes instead because I felt the original version was not stiff enough.

I have no issues with GPS mount in the rear. It lock on to SATs just is slow as it would when placed far away from everything. I was doing some test with different GPS where I had the GPS hanging far from the quad and it was taking just as long as it was mounted to the rear brace.

I do not know if it just me, but I do not have any noticeable issue with vibration or bobbles. Maybe I do, but I just do not know? :)
I think I should check out my blackbox data for more scientific results and not just go with how things feel.

Unzu   Mar 18, 2021  

Hi,

so which flight times did you achieve with this build?
Thanks

wrong17   Mar 18, 2021 

I have not tested this quad for max flight time yet, and the longest flight I have recorded in a single flight is 11:19 minutes with a 1500mah 6s Lipo. I let a friend borrow the 21700 lithium ion pack, so I do not know what kind of flight time I will get with that. I do not expect a huge difference between the Source One 7" that flew over 25 minutes with the 21700 lithium Ion, because both quads have the same props and motors. But there is a 100g weight difference between, the 2 quads. Here is the 11 min Floss 7" flight DVR video to show you the crusing speed. I started out slow but started to pick up speed after 7:30 minutes (I have the Raw GoPro 7 Black HD video too but its chopped in to 2 files because Gopro's camera does that automatic):

Unzu   Mar 18, 2021 

Wow, that sounds nice.
I am looking for a simple build that can achieve 15-20 minutes of flight time with the DJI FPV system.
This build looks very promising.
Thanks

wrong17   Mar 18, 2021 

FYI…I would recommend a lower KV motor because I put a 70% throttle limit on it. So, the ideal KV for a 7” is around 1300 – 1500kv. I bought these motors used, and I did not want to buy new ones. I am using 2507 motors, and most people are using larger 2807 size motors. Until I buy some to test, I do not know how it will compare, in terms of efficiency.

Trustedteller   Mar 15, 2021  

Great content. Is anyone of you interested in horoscope ?

K1R   Mar 11, 2021  

TOP build as usual! I like the idea of fixed xt60 connector

wrong17   Mar 11, 2021 

Thanks, but the XT60 idea was someone else's design. So, I do not want to credit for it. :)

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