The NextGen CineWhoop – Smallest 5" FPV Drone – The Venn Drone (Part 1)
I just wanted to show you this super boring, regular drone that i built psych. I actually want to show you this drone, its called the ven drone and its seven times more awesome and way more interesting and unique than a normal drone thats, because i built it and its 3d printed and its like upside down and its really weird. So let me show you this so im calling this style a crammed, five inch quadcopter. I call it crammed because everythings kind of crammed together instead of slammed like squished flat, which is another style of quadcopter fun fact. Now you might be wondering adam what the heck is going on here yet again, and you are right to ask that. So i designed this because i wanted to play around with the idea of having a large disc area in a very compact package, similar to the size of a three inch cinewoop, because those are all the rage right now were spinning five inch propellers, basically, all normal. Five inch quadcopter components, but in a very small frame and the motors are inverted and the the propellers are overlapping and theyre all at different heights, so that they dont hit each other and thats, basically the design. So in this video i want to bring you through how i got to this point and kind of how it flies right now, and i mean you can see how it flies right now, just so you dont have to sit through the whole video Music.
Hey Music were just in the early stages of testing right now, um, so ive only done line of sight testing, but so far its actually more promising than i thought that it would be now. Is there actually any point to this? Is there any practical application? Um? Maybe maybe well have better performance over a three inch. Uh quadcopter in a similar compact format im not really sure, maybe youre, seeing this and youre like whoa. This is exactly what i needed leave a comment down below. If it is now that you know the basic concept and kind of where it is right now, i want to take you through the whole process of of designing this, some of the considerations that went into it and also the components and all that stuff. We can kind of geek out a little bit, but first i need to say thanks to my sponsor pcb way for sponsoring this video and if you guys need custom. Electronic parts. Um custom printed circuit boards go check out pcb way because they offer all kinds of stuff and many different options, and they get it to you pretty quickly and what you can do pretty quickly like. How quick is that i dont know pretty quickly. It depends on how fast the shipping is, i guess, and what you can do, is you can design a circuit board and then send those files to them and they can create that circuit board to your specifications, which is pretty neat also they offer rapid prototyping.
So if you need something made of metal either cnc machined or sheet metal, or maybe something injection molded or 3d printed, they can help you with that as well, so ill have a link to them down in the description of this video. If you need anything like that, go check them out now. Just to give you a little background on this. This project is inspired by a previous project that i did, and i made a video about that where i took a frame designed for a three inch size. Quadcopter and i put five inch propellers and motors on there, but in that case i had the propellers and the motors on the top and everything underneath so kind of like the opposite of what i have now and and that that would have been a problem because You cant put a gopro on top of that because you have propellers on there and everything would have to hang underneath and it just wasnt it wasnt really built for that anyway. So what i wanted to do with this one is design the frame to be 3d printable and design it around the specific use of carrying a full size, gopro, so lets get into it. Of course, i started by doing a basic sketch on graph paper of kind of the top down view to get an idea of the overall spacing motor to motor that i would need for this frame. So i drew out the propeller disk size and, as you can see, it makes the shape of a venn diagram, so thats kind of why.
I call this a venn drone or venn diagram drone, or something like that, and i thought that was kind of neat and you can see that theres a lot of overlap on the propellers and well talk about that later. In any case, once i had a basic idea of what i love the size that i wanted, i started you know drawing some stuff up in fusion and went through a few different prototypes and printed those out and made sure i got all the the holes uh Spacing correct and all that stuff, i will say with the way that this printed out im pretty darn pleased with the frame, the geometry seems pretty rigid and the whole spacing worked out pretty well, i it can definitely be improved. This is just version one, but so far so good. So in total i designed the frame i designed the top mount kind of which is basically where the battery rests and the and it protects the electronics. And then i printed um some spacers as well, and that is really the key component to get these propellers uh to even spin without hitting each other. I designed all those and then i printed them out and eventually i got it right and they printed pretty well. Music, whew, Music and now its time, to put it all together, so the electronics that im using for this build uh, the stack is going to be the speedy b, f7 mini and speedy b sent me this stack.
So thank you. Speedy b um because theyre like hey, we got this new stack. Do you want to try it, and i said that will probably be perfect for what im working on here and with a f7 flight controller and 35 amp uh four in one esc board um. It is very small, its just like all 20 millimeter stacks overall. I really like this stack and i really like that. I can connect to the speedy b app with it. Uh wirelessly thats super helpful um, but one thing i dont like about it. I feel like the little uh rubber spacers are kind of the standoffs, arent quite tall enough uh for the 20 millimeter uh holes and the the esc connector would have hit the bottom of the frame and it would have been touching the frame, as i have it Here so i dont like that, so i had to improvise a little bit to create space so that none of the esc was touching the frame and none of the flight controller was touching the esc. Otherwise i really like it a lot, and i really like that. Everything is labeled, even though its very tiny – and that is one thing thats tricky about these tiny flight controllers is they can be difficult to solder because the pads are so close together, but i really like that they bothered to label them. The motors are iflight singh. 2207 1800 kv motors, and this is uh all built for 6s basic and those are spinning ethics, s3, watermelon, propellers and im using these propellers, because one these are kind of my go to propellers right now, and also, as i realized later, is very important.
The hub is fairly thin, its not a super thick hub, like some other propellers, and so that allowed me to add extra spacers, which really saved the day im using an analog vtx and an fli 14 plus fly sky receiver. The fpv camera is a run. Cam phoenix ii and by the way i did not bother designing an fpv camera mount just yet i wasnt sure where it was gon na go or what size it needed to be. So i ended up just hot gluing it in place and to hold the gopro on here im using my custom gopro mount that ive designed and is available on my website right now – and this is a no tilt forward design because i mean im sure youve had The situation where your gopro slouches forward after you crash or something and then youre just filming the ground for the rest of your awesome flight. Well, i said thats dumb, so i just made it so. You cant uh tilt the gopro forward and not solve the problem, and i made this one very low profile and it just uses uh an m5 uh button head screw um to hold the gopro in place instead of a thumb screw, and i made sure that that Was slightly off center so that we would have the lens of the camera more towards the center of the aircraft ready to go ill load it up uh. This thing looks ridiculous and thats, because it is, you can see the uh, the actual um battery mount kind of top cover is way taller than it needs to be, so we could uh.
We could shrink that down and improve that design for sure mounting. The motors is a bit difficult because we need those spacers, so i had to play around a while uh to get that right and the bottom most motor, the one that has the most spacers uh. It needed a 20 millimeter m3 screw to hold everything in place and really um. It probably should be even longer lets just get a way in and let me do this upside down. We are looking at 618 grams. Fortunately, the balance point does seem to be right where the flight controller is so. I guess i got lucky there. Now we can get our fonsky doodle dandy to the speedy bee. App again, dont give me an ad for an app for a product that that you sold to me. Actually in this case you did send this to me so thats cool but dont do that dont. Do that to your customers. Sweetdb mini lets, connect it so thats. Pretty cool it is initializing, okay, cool and we are connected. So this is cool im gon na try and do this whole setup on my phone and then this one is spinning inward. So i actually want to change the direction. Click change, the direction whoa. That is super easy that good job speedy, b good job and then it will spin outward look at this guy. Look at that. Look at that right there, its uh quite a bunch of spinny blades, and they all intersect in the middle.
Now, in case, you havent noticed this by now uh one of the problems with this design is um. How do you, how do you take it off the ground because uh it? You know the propellers are just sitting on the ground, so you definitely cant. Do it in grass uh, you need some sort of hard surface so that the propellers can kind of spin uh. You know, and and basically you just want to take off as quickly as possible, so thats what i did here. I set it on uh. You know theres some boards on a trailer and then uh took it off and this first test flight, as you can see, and here um it did not go so so. Well, oh wow cool all right nice. Its really loud were using a four cell battery uh 1300 milliamp hour. I think maybe 1500, but it seems to be seems like it works yeah, it sounds. Horrible seems like its working so far lets just try a little uh, a roll yeah. It seems to work thats cool wow yep, they kind of they kind of hit each other a little bit – hey Music. In any case, it does fly, though so that was pretty cool. I just did a line of sight test here, especially because the propellers were making so much noise, and it was just it was so bad. I knew i needed to fix the propellers hitting each other thats thats, obviously a problem.
So what i had to do is add spacing between the motor and the propeller, so basically put spacers on the motor shaft itself, and that worked out all right, because these propellers have a nice relatively thin hub and im using some low profile, lock. Nuts that i used on my other project, the geared x class drone and so those low pro profile lock nuts, allow me to get that locking ability without threading as many threads, so that worked out pretty well and then i also added my gopro dummy the dumb Pro 9. now, as you can see on this next test flight, it flew really well and it sounded way better and way quieter. It was. It was really weird like it sounded like, i guess, probably a regular five inch quadcopter. You know thats loaded down now. This was strange to me because i thought that if this thing is fully loaded um, then i would think that there would be more stress on the propeller blades, which would cause the tips to bend more and that bending would cause the propellers to hit each other. More but i guess, since i added the extra spacing between the propellers that solved the problem and it flew very nicely so im not sure if its, because i added the gopro or just because i added the spacing um, i probably should have just changed one thing At a time – but i didnt so anyway – it flies pretty well now and then um after flying it with the four cell.
Ive stepped it up to the sixth cell, and we definitely have a lot more punch, a lot more power um. I couldnt really like fly it around like full throttle or anything. I was just doing hover tests here, um, but definitely like controllable, seemed fairly stable um. The rates were kind of weird i mean the rates were high. There was uh just stock rate, so it felt weird trying to control it um. I was able to change the rates easily with the betaflight app, which is super cool um, but i still need to play around with it to get the rates, how i actually want them. In any case, this thing really turned around um and it actually started. You know flying well so im like shoot. Maybe there is something to this. If nothing else, i hope this project uh inspired you and got your creative juices flowing for your own project, and let me know if you have questions about this or are interested in this design. Eventually ill. Probably have these uh 3d printable uh plans for the frame on my website, because this would probably be a great three inch frame uh by itself anyway, or maybe just scale down this whole design into a three inch form factor and have a super tiny three inch. I dont know anyway, thanks for watching everybody. I appreciate you uh, thanks again to speedy b for sending me their new mini f7 flight controller and thanks to pcb way for sponsoring this video stay flying stay frosty, and i will see you again very soon.