Gerris 65 Tiny Whoop for Insta360go and stripped GoPro
Description
Gerris 65 build by [halitic](https://instagram.com/haliticfpv) ==================== ## Updates Find a highlighted Instagram story about the Gerris65 here: https://www.instagram.com/stories/highlights/18092238541165888 I share my progress, some footage and photos there. Videos on YouTube: With Insta360GO https://www.youtube.com/watch?v=JxotIxpT38g With stripped GoPro6 and ReelSteady https://www.youtube.com/watch?v=emgtFMvfGEI ## Story My goal to build the smallest possible FPV drone which is capable of lifting a naked GoPro (18g) or Insta360Go (18.5g) with props/propguards out of view. And the result is my Gerris65. After my very first design, which was just a 3D printed mount for the Insta360Go on a stock Beta65 Pro 2, I saw that the quad was basically able to lift the camera and fly with it for some 1.5ish minutes. That got me thinking, and I tinkered around. The idea itself isn't new, since most of the 85mm and 95mm naked GoPro builds are using the pusher configuration. But I only used it after I saw the Diatone Hey Tina Whoop lifting a stock GoPro without a problem. So there has to be something with it, that makes a pusher configuration more valuable for such projects (because the Hey Tina Whoop is a pusher config as well). I started to design a mount with the BetaFPV Meteor65 frame flipped 180 degrees, which to me looked like a jesus bug (these little bugs which can walk on water). The right term for them is "Gerris", and thus I named it Gerris65. To get all the power from it that I needed, I soldered the BT2.0 connector to the AIO board, since it provides much better power flow. I also used JESC (bought some licenses) and used the 96khz rpm filter version. On top of that I oiled the non-bearing parts of the motors with bearing oil (tipp from latest Mr.Shutterbug video). To improve VTX quality (and save 0.5g as well) I used a TBS Nano Pro32 with stock linear antenna. After my first rough landing with the Insta360GO, I noticed, that the lens of this cam is very prone to scratches, so I designed a lens protector. Because the batteries were a bit long and to improve on the center of mass side of things, I rotated the frame, and therefore the AIO board 90deg. This way the batteries were connected on one of the sides of the drone. ## Weight Insta360GO Edition: 44.5g without batteries, with Insta360 GO Naked GoPro Edition: 48.g without batteries, with naked GoPro 6 ## What you need ### 3D printed things I printed everything with TPU 95A (mine is from SainSmart). Most of it printed with support, since you can easily rip that off post print and cut little knobs and so on. You would need either the Insta360GO or GoPro version, depending on which of both you want to use, or remix your own one. ### Components / Hardware You'll find most of the components needed in the 2020 version of the Beta65x (2S). Alternatively you need the following components for the quad: - Meteor65 or Beta65x (2020 version) frame - 14000kv motors 080x - AIO 2S tiny whoop FC/ESC board with motor connectors - 2x BT2.0 battery connectors - stock BetaFPV VTX+Camera combination or TBS Nano Pro32 with stock antenna - RX receiver of your choice. I have one Gerris65 with TBS Crossfire and one with build in FrSky - tiny whoop screw set (for example the one from BetaFPV) Other hardware things you need: - at least 2x 300mAh or 333mAh 1S LiPo batteries (I used 333mAh from MyLipo, a German LiPo manufacturer. Gave me some 30-60 Seconds more flight time) - HQ 3-bladed, 31mm, 1mm shaft props - 12x M1.4x4mm screws - bearing oil If you want to use a naked / stripped GoPro: - wires (duh,..) - JST PH2.0 female & male connector (if you don't want to be able to simply but the GoPro on another quad) - Matek BEC 7-21V (up to 4S) 1.5V 5V 12V (you would use the 5V for the GoPro) ## Software - 4x JESC license http://jesc-4.halitic.de <sub><sup>(Affiliate link, if you want to support me, alternatively find the licenses here: https://jflight.net)</sup></sub> - Betaflight 4.1x or newer (for RPM filtering) I flashed experimental 96khz with latest telemetry and used RPM filtering in Betaflight. That's needed to get some extra flight time. ## Stripped / Naked GoPro usage To fly it with a naked GoPro was only a proof of concept. With 333mAh I got nearly 2 minutes of flight time. Maybe more when I landed mid flight to let the LiPos recover a bit. Use the BEC described earlier and put it directly on vbat of the AIO board. The BEC is able to power the GoPro (using 2.7k, 4:3, 60FPS) down to 6.3V (3.15V per cell). On 4k 4:3 it should stop recording / turning the camera off some millivolts earlier. The stripped GoPro mount is a remix of Paul's 95x which I just used in need of a quick mount. I think you can shave some g off of this (about 4.5g for the whole Gerris65 GoPro top mount). ## What's next? Well, I did this to contribute to some new development in the tiny cinewhoop section of FPV. Since I see them getting bigger and bigger, with 95x for DJI FPV digital and so on, I would also like to see them getting smaller. So I'm giving you this as a proof of concept and I'm super excited to see what you're doing with it. ## Share and Remix You're free to share and remix all of this for non-profit projects. You can link my Instagram account (would appreciate that) and use the hashtag #gerris65 if you want. ## Support If you think I deserve some support, a follow on [my Instagram](https://instagram.com/haliticfpv) would be appreciated. On top of that, I have some affiliate links you can use, if you want: [JESC Licenses](http://jesc-4.halitic.de) [Insta360GO](http://insta360go.halitic.de) [ReelSteadyGO](http://reelsteady.halitic.de) (use code "HALITIC" for 5$ discount) [German FPV Shop](http://fpv24.halitic.de) Or good old PayPal: https://paypal.me/martingauer
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