Hello, recommendation for a diy budget with video

Jonisingt35r

Jonisingt35r

Member
Hello
My first post, from UK, looking for. Diy build with video I'm on a budget.
Really I'd like a recommendation for a controller one thats supported hopefully that gets updates if it exists? Seen a few on banggood and ebay but not sure if they are supported.
Thankso
 
Jonisingt35r said:
Hello
My first post, from UK, looking for. Diy build with video I'm on a budget.
Really I'd like a recommendation for a controller one thats supported hopefully that gets updates if it exists? Seen a few on banggood and ebay but not sure if they are supported.
Thankso
Click to expand...
For transmitters I think either the Jumper T16 or the FrSky Taranis QX7 will work. Basically need transmitter and receiver pair, which usually come from same company but really need to just talk the same protocol, T16 allows for modules to be added to switch between mfg protocols (popular two are FrSky and Spektrum)

Almost any receiver will work with any betaflight flight controller board since in the config you set what port and protocol the receiver will be using to signal data to the FC.
 
Thanks what should I be looking for the video ?
Really not sure on the frame I was looking at at least 300mm ? Or bigger ?
 
I was also going to make up my own batterys using 18650's is there a maxinum weight? Or is this specked by the motors many?
 
I really wouldn't recommend going 18650s unless you already have access to a spot welder and know what you're dealing with there (would treat the battery build as a separate project really it's a lot of work to do a battery build properly). There's a ton of discussion about it here: https://www.electric-skateboard.builders/t/please-review-my-battery-pack-so-i-dont-make-a/70102/51

In the case of a quad you don't have as much to deal with as the esk8 with regard to power draw or vibration but still a lot of good advice on that thread if you do decide to pursue that.

With regard to weight this is a huge issue. The lift is dictated by how fast the props can be spun how much surface area their diameter makes up, pitch, etc. etc. there are a lot of variables. This is the most comprehensive calc I've seen for getting some realistic numbers on everything for from scratch builds:

eCalc - reliable electric drive simulations

get your electric rc drive right ✓ fast & reliable simulation - no more guessing ✓ most comprehensive motor database ☆ prevents mispurchase since 2004
ecalc.ch ecalc.ch

For 5" props a 250mm-300mm frame is usually appropriate (I have a 226mm frame with 5" props they are very close to the frame but it does work fine and smaller size means rotational speed can be higher).

Generally I fly with 4S batteries (1300mAh or 1550mAh) and 2600kv motors, think this is a pretty typical setup now but there are also people playing with lower kv motors and higher voltage (6S) since that means less amperage and less loss through heat and less sag since the amps are split across more cells so guess just more consistent if Wh are equivalent.

Regarding video having receiver goggles with diversity antenna and/or just a good receiver makes a big difference in range you can expect to get. I've generally used AKK's VTX(s) and have worked pretty well for me. Personally running a runcam split 2 since it does HD to an SD card and transmits the lower res signal to the VTX for live view in the goggles and I prefer not having extra gopro weight on there (gopro does have "superview" and generally better looking video, but trade off)
 
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