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AurilFPV

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August 23, 2026 at 3:20 PM

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awesome! having a place like this to learn is so important. its not necessary, but it makes the process much better. I have a nature area I can walk my dog to and fly and 100% that has made me a much better pilot, but only for sub250 builds. keep doing what youre doing and you'll be just fine! if you can build some semi-permanent race/dive gates out of 4x4 and plywood (and foam/cut up pool noodles), then youre really gonna be cooking with gas.

August 23, 2026 at 3:07 PM

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I have multiples of 65/75mm in hdzero, dji, and analog with mixed components. comparing a 65/75mm to a 3" would make the 65/75mm seem pretty similar, comparing the 65mm to the 75mm would be noticeably different. the only time ive broken an o4 is flying it on a 65mm inside, I personally think 65mm is too small for the o4. It really depends on what type of flying you want to do though. If you are looking to learn freestyle, a 65mm analog with 5in1 aio is hard to beat. My custom 65mm analog is my most flown drone because I can power loop my dining room table while drinking morning coffee and its 'only' $50-$60 if somehow break the aio. If you just want to do outdoor cinematic flying, then a pavo20 series might be a better next step.


edit: love the Pokemon lol

August 23, 2026 at 2:54 PM

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@M4R5_FPV ahhh gotcha, that makes sense! I had been kind of wondering if there was something I was missing about cnc companies that are advertising pcb production at home, 2 layers doesn't seem worth it. With all the talk about war and companies selling out I really want to create an open source design that people can just get the files for and have a 3rd party produce the boards. Youre much farther along than me in that regard, do you think this would be possible/practical?

August 23, 2026 at 1:06 AM

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I think thats the only way I've seen people do this kind of stuff at home. Some of the factories with the solder baths are pretty nuts though haha. What are you using to cut the board?

August 22, 2026 at 8:07 PM

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@M4R5_FPV Let us know what you learn from the soldering when you get there! I feel like there's gonna be some tasty knowledge nuggets haha

August 22, 2026 at 8:01 PM

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For every orbit/lap in one direction, do another orbit/lap in the opposite direction. Do some of the switches immediately and without interim maneuvers. This can help with brain plasticity and muscle memory so you dont end up doing more advanced tricks in only one direction. This can apply to pretty much all tricks. Avoid the power lines, especially doing the blind half of tricks in their direction (like the back half of a power loop). If you ever need extra concentration, or the kids aren't listening, take a seat and that will help open up some subconscious processing that would have been used for balance. Looking forward to the next one!

August 21, 2026 at 5:05 PM

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How long are you letting it look for gps and are you doing it under completely open sky? It could take +5 minutes before the gps locks the first time at a spot. Once it locks it should reconnect faster when you have to switch out batteries. But you also might not have compatible satellites in the area you're trying. Looks like the solid red light means it's searching for satellites, which is good/means it's working. 

August 21, 2026 at 4:38 PM

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@SundryTea Please dont take this personally, but there are some variables/contradictions  here that make me want to suggest more experience before pushing long range and mountain diving. It is just a very risky type of flying and generally people that do what you’re looking for are building drones specifically designed for it. Your range on this build is going to be limited by factors other than the battery, like the 350mw vtx, anything over 1.5-2km should be pushing its safe limits. Flying out 5-10km and diving a mountain probably isn’t possible on that drone, no matter the battery you pick. 


When someone says mountain diving and 5-10km, I think of a 5”-7” with a +1w vtx and 6s-8s batteries.


To answer the question directly, a higher capacity 4s li ion might give you a longer hover time, but the drone will no longer have responsiveness and might fall out of the sky. Especially if you have to keep it at a high throttle and overheat stuff or fry the battery. The batteries you’re trying to compare aren’t really comparable and will make the drone fly completely differently between li ion and lihv/po. You’re still doubling the weight with the li ion and a 6:1 ratio isn’t very good, plus you’d probably only be getting that at 100% throttle.


If you have money to burn, try the li ion, if not, stick with the lihv/po. The 850 mah should give you an extra 1-3 minutes and you’ll still have high C discharge and all that. Even between my 4s 720 mah and 850mah I notice some difference in flight characteristics.


If I’m wrong about any of this or missing some info, I apologize, just want people to fly safe and happy! 

August 21, 2026 at 12:15 AM

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the smallest 18650 packs I could see were 3s-4s 3000mah at 160g-200g, Im assuming your dry build weight is around 200g, so you'd be looking at doubling the weight and having a  much lower discharge rating. for "responsive" you want 7-8:1 thrust to weight, 400g auw is probably more like 4:1 at 100% throttle on those motors, which would probably kill the battery with the lower discharge rate. 


I like my 4s 700-900mah lihv for 3" a lot!

August 20, 2026 at 2:07 PM

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make sure you get a smoke stopper and before you power it on the first time and do it without props


you have a couple options, I have a similar build for practice.


1. buy Pavo20 pro 2 frame kit with the new regular o4 bracket 2 and transfer everything. (make sure its the correct bracket)


2. just get the new pavo20 pro v2 bracket for the regular o4 and try to modify the mounting to fit the old frame. I cant confirm this will work, but I think it might just require some longer m1.5-2 bolts to go through the soft mounts and frame.


3. zip tie the air unit into the pro sized bracket thats on it and use some gummies and longer screws to get the camera to fit in the larger o4pro camera mount. I used this method, but my regular o4 air units have the cnc aluminum cases on them for protection, wouldn't recommend zip ties on the naked board. Only did it this way because it's what I had lying around.


need your country for a specific store link

August 19, 2026 at 8:40 PM

Commented on post
Oscar Liang:


OSD Tools

With systems like Walksnail, OSD data is often saved as a separate file that can later be merged with video. The BETAFPV P1 ArtLynk system works differently:

  • The Betaflight OSD data is embedded directly inside the recorded MP4 file
  • The goggles do not export a separate OSD file
  • You can’t simply toggle OSD on/off after recording

This means you need a tool that can extract that embedded data and render it back onto the footage.

A developer created a fork of the Walksnail OSD Tool that supports BETAFPV P1 ArtLynk recordings. It scans the MP4 file, extracts the Betaflight telemetry and OSD data, and overlays it onto the video.

Download links:

Drag and drop the MP4 file recorded by your BETAFPV goggles into tool, it will:

  1. Scan the video for embedded OSD data
  2. Extract telemetry information
  3. Detect subtitle (SRT) files if present

The tool requires a Betaflight-compatible font which you also need to download.

  1. Download a font pack (e.g., Sneaky FPV fonts)
  2. Drag the font file into the application

Use the built-in sliders to position the OSD elements on screen. You can preview the result in real time to match the layout you want — typically similar to what you saw inside your goggles.

When everything looks correct:

  1. Click Start Render (bottom-left corner)
  2. The tool will generate a new video file
  3. The output will have the OSD permanently burned into the footage

August 19, 2026 at 2:08 PM

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Not to step on the post, but maybe this helps everyone: The Art of Electronics by Horowitz and Hill, Practical Engineering for Inventors by Scherz and Monk, and some amazon/Ali electronics kits. They sell random component kits, but they also sell "soldering practice kits" that are blank boards with loose components and they just give you the wiring diagram to figure it out. And as M4R5 says, YouTube and ai haha. 


The most advanced kit ive done so far is an oscilloscope thats actually pretty accurate for something built in my living room, but they're a lot of fun in general if you like puzzles and soldering!!

August 18, 2026 at 7:49 PM

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if its shipping from China, the local (Canadian) tracking number wont say anything until the package clears customs and the local carrier accepts it

August 18, 2026 at 4:15 PM

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indeed, no shade to them. Landed (crashed) my meteor75 half submerged in my dogs water bowl when learning and it flew totally fine after a couple days in rice

August 18, 2026 at 4:06 PM

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If I didn't already have DJI, Id probably do that as well since the recent firmware updates seem to be doing well. Love betafpv, they aren't the best, but I sure dont care as much if I break or lose one haha

August 18, 2026 at 2:31 PM

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Nils_Vo did a video on latency and showed his methodology for testing goggles. Joshua Bardwell just said he is developing an app for this as well I believe. In my personal experience, it takes me a pack to readjust when switching from hdzero or analog to dji racemode, which is like ~30ms glass to glass I believe. I think anything rated above ~30ms isn't going to compare great to analog, but that's because analog is the best. I focus on latency for my analog and hdzero systems, then image quality, range, etc for everything else. Idk if that helps haha

August 18, 2026 at 2:24 PM

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good luck with classes!

August 17, 2026 at 4:44 PM

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did you reflash everything when you installed the new esc just to reset everything?


it could be the current scale or need a manual recalibration

August 17, 2026 at 2:54 PM

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My family passed away and I ended up in our family home, alone, shortly after that multiple break-in attempts started happening. It's a problem all across town as we dont have enough money for 24/7 coverage anymore (and a casino recently moved in). This made me hate myself even more, I think because of repeatedly feeling helpless in those situations in combination with everything else.


The "responder" that took the reports helped save me from that self-hatred. He gave me back some of my metaphorical value and literal agency of action. He didn't have to do that, but he took the time to talk to me because he heard me putting myself down. Im building a low-cost municipal services UAV company (non law enforcement) to help save money for our town in large part because of what he said to me. You sound like a similar type of person and I am grateful for and proud of people like you and him. Especially now. Thank you for sharing!


(also, 15 years in the service industry, would have been happy to be your sous)

August 17, 2026 at 2:00 PM

Commented on post
raise your max cell voltage above 4.4v, sometimes having it set below 4.35v does this when using high voltage batteries that charge to 4.35v/cell instead of 4.2v/cell

Let's take flight together and elevate the world of FPV drones to new heights.

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