First 5" FPV Build: Ultra Budget Drone from AliExpress
Putting the finishing touches on my first 5” build, let me know what you think as it’s not only my first full size build but I also built it 100% from aliexpress so she’s my ultra budget build 😅 hoping the batteries will be here and I can get her tuned before my meetup this weekend
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5 t.
I would not be that camera 😬
😂 3
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5 t.
Autor
Nah dude I actually like the worst looking analog and a terrible FOV manee it’s an aesthetic 😭😭
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5 t.
No, I meant that the camera is sticking out and might get broken in a crash.
But I like analog too 🫠
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5 t.
Nice. Aside from the camera poking out, the only real issue I'd worry about is that VTX antenna ripping off. Maybe not a bad idea to find a way to secure it to the frame to help mitigate the chance of g-forces ripping it out on a hard crash.
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5 t.
Autor
All my prints are sitting on the printer and I have an antenna mount as well as cam housing I just need to install them 😅
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5 t. (zaktualizowano 5 t.)
This is really good for a first big build! It would definitely fly as is and thats impressive.
You'll want some tpu bumpers for the ends of the arms as well. (wasn't sure if they were already part of the prints.)
The vtx looks like its hard mounted to the carbon, you dont want to do that unless it specifically say so. Some thick 2x sided tape at least with some zip ties can work, or a printed cradle is better. The carbon will interfere with the vtx signal, so ideally you want the vtx in the middle, with power wires routed away. Dont be afraid to mess with the antennas some to get them away from carbon and in effective positions as well.
You could rotate the esc and resolder the power to go out the side or possibly front for max signal clarity. You also dont want the fc/esc ports touching directly if you can help it, they damage easier when touching if you crash. Moving them would also allow you to change the direction of the gummies so that the esc has more space between it and the carbon and is less likely to accidentally short.
I think the wires on the esc might need more solder, but it's hard to tell. Thats happens a lot, I'm still redoing some of my first ones. You can send me pics of solder pads if you want to 2x check any.
Some heat shrink around the capacitor and power pigtail protects the cap and insulates it a bit.
twist up the wires on the UARTs, use a bit and tape to protect them/get them away from the battery strap a bit. Zip ties can work as well. Ultimately you'll want to more permanently mount all the components and shorten the wires.
Those battery straps and pads can get slippery quick. you'll want to make sure the pad stays clean and get some rubber bands or more straps/something to go across the battery in the other direction and secure it a bit more. There's upgraded straps and pads you can get eventually, they're cheap-ish and worth it imo.
Be careful with the camera regardless of extra prints, it's definitely hanging out there. If you are into designing, deleting the carbon plates and making a mount for the standoffs should be better and could pretty much just be 3 cylinders. That bottom plate would be a lot of bumper then and might actually make it go from risky to very secure.
also, if its a knock off frame, make sure youre checking all the screws as you fly. You might want to locktite them once youre finished with the setup.
This really is a great job, most of these suggestions are just fine tuning/longevity stuff. Looking forward to some flight footage!
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5 t.
Autor
Thank you!! I was designing some more "universal" TPU arm bumpers to print and I was thinking the same things about the esc because my first plan was to have the power routed out the side but my 2am build sesh decided the best was out the back 😅 ( although I may change that now that you mention the fc and esc connection touching when shortening and securing the uart wires more and yes I also plan to use blue threadlocker on all of my metal on metal screws haha just test fitting everything right now and making sure the build is solid before adding any of my custom prints, also, yes I do 3D design for work so I bought a bare knockoff frame to be able to test my design ability for 3D prints. Oh and my VTX is soft mounted with thin double sided tape (we call it "banner tape" in the fab shop) instead of the thicker foam stuff but it still has quite a bit of cushion as it is basically a thick strip of gummy adhesive, thanks again for all the great advice!
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5 t.
Thats awesome! It sounds like a really good build for what you're trying to do with it. You can design a capacitor holder for the standoffs as well that could keep it a little more protected, but you have to route it and thats a little more advanced. Dont be afraid to use zip ties and heat shrink for stuff as well. Ryan Quellet has some great YouTube videos about how to get good signals and orient/mount vtx/antennas if you want to go deeper on that stuff.
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5 t.
Nice build! How did you like soldering? Personally, it sucked for me using lead free... so I got lead instead.
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5 t.
Autor
I don't mind soldering as I have had to solder a lot for work but that being said I'm no master 😅 but good enough to get the job done, I made sure to put some extra on these joints and give them all a good tug so I feel pretty confident
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