I wanted to play around with an iNav quad but didn't feel like spending much money, so a combination of obsolete spare parts & the cheapest new parts from banggood resulted in this beauty. Special mentions go to the ESCs with their linear 5V BECs & the separate Sparkfun magnetometer because I didn't check realise the GPS I ordered didn't have one.
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Wondering if you're still flying this thing and if so, would you mind sharing your PIDs. I just put together a very similar platform to mess with inav and it has some terrible low frequency oscillations. Thinking I need to lower the "I" values quite a bit from the defaults.
I've not flown it since I first built it, it didn't fly particularly well on any of the iNav presets & I never got around to tuning manually. I'm planning to put Arducopter on it (which is supported on some miniquad style F4 FCs like the Matek F405-STD since Copter 3.6) to see if it flies better, especially after an AutoTune, or whether the frame is just too flexible :3
Looking great! Exactly what I'm planning to build. What kind of weight does it lift?
Awesome! That really makes me miss my F450. How well does it hold position?
so I have a f450 with an old DJA naza FC that i want to swap out for an f4 fc and run inav. I was wonndering how did you manage to mount the FC to the f450 plate. The existing slots dont seems to line up with a stanard 36x36 FC.
Hey, I like your test platform build! I'm looking to test a new Pixhawk too. You've inspired a very similar build, I found a necessary upgrade in reliability for Motors, ECS, and props for just about $45 for anyone else who's got a few more dollars to play with: http://store-en.tmotor.com/goods.php?id=726
Guides & Reviews
This guide will walk you through the process of building your first FPV quad. The goal with this design was to build a low-cost, lightweight quad, yet powerful enough to safely carry a GoPro in close proximity areas. I chose these parts to minimize the amount of soldering at no cost to the quality. A typical build requires around 30 solders while this only needs 25. It's not a huge difference, but..
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In late 2019 DJI made inroads into the FPV scene with their remarkable low-latency digital system. It gave us a 720p video feed with latency on-par with the status quo, analog video. Traditionally we've used analog video systems for low-latency video, but the video quality is far from ideal. It's a trade-off we've been willing to accept for the control. Now we've got the best of both worlds and what..
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I'm thinking about a frame like this as my first ever quad - is that a good idea ?.Or what alternatives would you recommend ?
I've only ever flown a model glider (badly) a very long time ago.
Well what is your goal for your first quad? This sort of frame is a good budget option if you want something docile that you plan to fly semi-autonomously with GPS etc. (a bit like a DJI). However it's a poor option if you want something more aerobatic or if you want to fly FPV etc.