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Nerobro posted:I really do like the Gemini. It seems smaller than 250 class. I agree. I know how to go about PID tuning from other endeavors, but the other tricks (setting endpoints, TPA, RC rate, etc.) I got largely word of mouth. Anyway, TPS goes from 0-1.00 AFAIK, and it's a fraction of the total P value to be subtracted at full throttle. So if your P gain is 3.0 and you have a TPA of .4, your P gain would be 1.8 at full throttle. At half throttle, your P would scale to 2.4.
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Dec 22, 2014 22:13
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Hurrah! Finally finished my "mini" hex build. I've only had a chance to hover it a bit, but it is super smooth/stable! Comes in around 650 grams w/ 2200mAh battery, and hovers at around 45% throttle. Parts: Hobbyking Thorax Hex Frame 6x Multistar Elite x2204 2300kv 6x 12A Afro Esc (SimonK) KK Mini
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Dec 23, 2014 02:41
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That looks really cool  I love how cleanly assembled it looks, no stray wires etc.
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Dec 23, 2014 06:05
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Yeah, looks nice. I'm still not sure how I'm going to mount everything in my Minion. But I suspect I should take the simple approach, and just get the FC, ESC, Rx, possibly BEC, and the distribution board wired. Get it in the air and tuned a bit, practice flying in acro, then worry about adding the FPV stuff. I saw a video where a guy was balancing his motors by mounting them to a plate, sitting phone on the plate, and running it at a set speed. He was running an app that supposedly picks up the amount of vibration, and through trial and error, he would move a piece of tape around the motor to get the lowest vibration value. Anyone else bothering with this? Or know if it works?
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Dec 23, 2014 17:08
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If you have a motor with a thread and a prop balancer you might do it like this too https://www.youtube.com/watch?v=UYqtwd4xXYo Not for the faint of heart I guess moron izzard fucked around with this message at 19:22 on Dec 23, 2014 |
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Dec 23, 2014 19:19
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Parker Lewis posted:Would the Hubsan X4 be a good choice for a complete RC novice looking to get something fun for under $50? YES. In addition to what has been said, avoid the version with the camera. They're not quite as nice to fly. But they are very forgiving and tough. Highly recommended.
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Dec 23, 2014 20:37
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Mister Sinewave posted:That looks really cool Thanks! I put a lot of effort into shortening wires, resoldering, shrink-tubing, and mesh-guarding. Still some cleaning up I could do with all the esc power wires, and I'll need to figure out a better way to mount the antennas.
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Dec 24, 2014 01:24
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I want a RC off-road car but with a FPV camera setup. The car needs to be something like a rock crawler or a 4WD truck, that can drive over 3" pipes laying on the ground. I don't need (or want to pay for) a wearable goggle display, just a regular phone-sized screen would work. This will be used for looking around under buildings, so anything that flies won't work (there is not much vertical space and often there are wires hanging loose). Everywhere I look that sells drones just sells the quadcopter things complete. Is there anyplace that sells the FPV setups that you can mount on any RC vehicle you want?
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Dec 24, 2014 02:05
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edmund745 posted:I want a RC off-road car but with a FPV camera setup. The car needs to be something like a rock crawler or a 4WD truck, that can drive over 3" pipes laying on the ground. I don't need (or want to pay for) a wearable goggle display, just a regular phone-sized screen would work. https://www.readymaderc.com https://www.sierrarc.com https://www.rangevideo.com Nope, nobody sells FPV stuff by itself. I recently bought one of these for a customer along with the TX mount and now I'm loving jealous. I hate when my customers have cooler toys than me: http://www.hobby-wing.com/fpv-fever-7in-fpv-monitor-w-5-8g-receiver-7450diversity-html.html
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Dec 24, 2014 03:02
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Ok, so not entirely RC, but this thing is cool: https://www.youtube.com/watch?v=pD_yQZ4iNjY
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Dec 24, 2014 03:35
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edmund745 posted:I want a RC off-road car but with a FPV camera setup. The car needs to be something like a rock crawler or a 4WD truck, that can drive over 3" pipes laying on the ground. I don't need (or want to pay for) a wearable goggle display, just a regular phone-sized screen would work. http://hobbyking.com/hobbyking/store/__66582__FatShark_Teleporter_V3_RTF_FPV_Headset_System_w_Camera_and_5_8G_TX.html This comes with goggles and a camera that can record HD to an SD card. You could have a monitor as well, but people rarely sell sets of those.
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Dec 24, 2014 05:32
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on the left posted:... This comes with goggles and a camera that can record HD to an SD card. You could have a monitor as well, but people rarely sell sets of those. I don't need the goggles, HD video or SD card capability. There is mini quadcopters now that have FPV cameras, for less than $100: http://www.banggood.com/JJRC-H9D-2_4G-FPV-digital-transmission-Quadcopter-with-2MP-Camera-p-958018.html And I can get a baby monitor for around $100 that has night-vision mode (that could be useful for a ground RC vehicle): http://www.amazon.com/Infant-Optics...itor+night+mode ,,,The thing I don't know about baby monitors is if the monitor and the RC vehicle would interfere with each other or not. If a monitor was intended to be used on RC vehicles I would assume it would not have RF interference issues. So what I am really wanting here is something that is ready-to-go that includes a lower-res camera with night-vision mode, the transmitter and receiver, and that includes a small screen for display,,,, and for a price that is significantly less than $100.
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Dec 24, 2014 14:24
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edmund745 posted:I don't want that, its too expensive. You will likely have to put something together yourself. I am not up to date with RC cars now but I can get you started with the video side. AI has a decent thread about them: http://forums.somethingawful.com/showthread.php?threadid=3125553 Probably an RTR monster truck from Traxxas will be your best bet. With the video system, you will first pick your frequency. Higher frequencies like 5.8 ghz will have better video quality and smaller antennas. Lower frequencies like 1.3 ghz and 900 mhz do a better job of going through obstacles, but the quality is worse and the antennas are huge. The next item to consider is power. On dumb simple video transmitters like the ones used in FPV vehicles, you are limited to 20 milliwatts or less (in the US) unless you have a HAM technician's license. Most FPV aircraft and stuff that we are flying are at least 100 mW (one of the most common FPV transmitters is 600mW). So that baby monitor is fine for around the house, but will likely get knocked out by any obstacles bigger than a wall. You should take the time to get your license (it's only fifteen bucks and a few hours), even though many people operate unlicensed. Next thing to consider is the actual control radio for your car. Almost all of these RTR cars are on 2.4ghz at 100-200mW (because of the way that they frequency hop, they are allowed higher power by the FCC). This is probably fine for your purposes. However, it's important to remember not to pick a video system that is more powerful than your radio system...if you pair your 2.4ghz control system with a 800 mW 1.3ghz video transmitter, you will have clear video even while you have no control over the vehicle, and it could get lost. You want the video to start flickering and dropping out before you lose control of the vehicle. Also, you can't have your control and video on the same frequencies. If you need lots of range/object penetration, 1.3 ghz video and 433mhz control are very potent combination. For your purposes, I would go with 5.8 ghz at 300-600 mW. Antennas will be small enough to fit under the house, quality will be good, and it won't outstrip your control link. This is the best you can get: http://www.readymaderc.com/store/index.php?main_page=product_info&products_id=266 You can get stuff cheaper from ebay, but the quality and range, even for the same power, will not be as good. Next is the receiver. Most people use goggles for the immersion and suave looks, but it's much cheaper to use a separate receiver: http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_34_37&products_id=877 This will hook to a battery and monitor. Monitors just have to accept an analog video signal (you know, the yellow plug). They should also flicker/go to static when they lose signal and not blue screen or they will go blue when the signal is still mostly usable. Not a necessity for your purposes but certainly nice. http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_22_228&products_id=1529 Or feel free to get a something super cheap from ebay. Next is camera. There are a lot of options. Go for the PZ0420, it is cheap, great quality, and great in low light: http://www.amazon.com/PZ0420-600TVL-D-WDR-Color-Camera/dp/B00BIUZ99S That's all you will really need to get going.
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Dec 24, 2014 15:04
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Well I took the plunge on getting my FPV gear and everything else I'm going to need for my qav250. I held off on starting the build when the fury pdb came back in stock, so I nabbed one of those and a tbs core which should greatly simplify my wiring and give me some sweet osd action. For fun let's itemize the whole build... CF QAV250 frame w/ prop guards and aero covers Cobra 2204 1960kv motors MS 12amp ESC (SimonK RapidESC) 4s 1300mah lipos Acro Naze32 Fury PDB TBS Core D4R-II 2.4Ghz Receiver Taranis Plus Tx Immersion 5.8 600mw vtx Dominator v2 goggles w/5.8 receiver module IBCrazy BluBeam antennas Mobius with vibration dampening mount I think I may have gone a little overkill for my first build but at least I shouldn't have a problem with cheap parts. User error on the other hand.... joe944 fucked around with this message at 18:58 on Dec 24, 2014 |
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Dec 24, 2014 17:36
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oh boy more flight controller slapfighting (buyin baseflight.com is pretty funny ahahha) http://www.reddit.com/r/Multicopter/comments/2qabqh/baseflight_vs_cleanflight_facts_proofs_drama/ also https://www.youtube.com/watch?v=a8JyCGXrFbk moron izzard fucked around with this message at 18:17 on Dec 24, 2014 |
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Dec 24, 2014 18:12
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To the tune of Feliz Navidad: https://www.youtube.com/watch?v=Qe3uqtGvOrk Going to be a lot of these after tomorrow.
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Dec 24, 2014 18:24
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joe944 posted:
I'm going to assume you have previous flight experience... Because that's a hell of a rig.
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Dec 24, 2014 18:26
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A Yolo Wizard posted:oh boy more flight controller slapfighting (buyin baseflight.com is pretty funny ahahha) http://www.reddit.com/r/Multicopter/comments/2qabqh/baseflight_vs_cleanflight_facts_proofs_drama/ The level of slapfighting involved in this is pretty drat funny. But I would say the guy running cleanflight seems to be a lot more into the actual open part of open source. If people don't want someone to fork their work then they shouldn't release it under a GPL licence. I haven't really gotten into the differences that much but the guy behind cleanflight looks like he is actually trying to bring a lot of new features in compared to baseflight.
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Dec 24, 2014 18:40
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joe944 posted:Well I took the plunge on getting my FPV gear and everything else I'm going to need for my qav250. I held off on starting the build when the fury pdb came back in stock, so I nabbed one of those and a tbs core which should greatly simplify my wiring and give me some sweet osd action. It is going to go like a loving rocket so make sure you have a lot of empty space when you first get her going 
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Dec 24, 2014 18:45
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Do they make carbon fiber in colors other than black?mashed_penguin posted:The level of slapfighting involved in this is pretty drat funny. But I would say the guy running cleanflight seems to be a lot more into the actual open part of open source. If people don't want someone to fork their work then they shouldn't release it under a GPL licence. I'm also seeing a lot more places openly selling acro naze clones now (alongside official ones).
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Dec 24, 2014 18:49
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Nerobro posted:I'm going to assume you have previous flight experience... Because that's a hell of a rig. I've been flying a nano qx for a while now, although I'm also building a custom micro quad with these fast 6mm motors and a micro MWC FC, which should be pretty fun for acro flying in smaller areas. mashed_penguin posted:It is going to go like a loving rocket so make sure you have a lot of empty space when you first get her going Yeah I will definitely be going easy at first and make sure that I have lots of room to practice. There is supposed to be some kind of FPV meet up in Berkeley this Sunday so I might try to make it over there to meet fellow hobbyists and try to absorb as much information as possible. Apparently one of the famous qav250 pilots that goes by the name Charpu lives in the same city as I do, so I'll have to see what kind of advice I can get, and then just practice a lot. joe944 fucked around with this message at 22:20 on Dec 24, 2014 |
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Dec 24, 2014 18:57
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https://www.youtube.com/watch?v=zZzNDT4vjog My footage is in here, did anyone else sub to this compilation of 5 seconds from drone's all over the world? There are some great shots in here.
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Dec 24, 2014 20:08
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A Yolo Wizard posted:Do they make carbon fiber in colors other than black? Carbon is black. If there are other colors, it's not carbon. A common thing is to weave fiberglass or kevlar in and dye those fibers.
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Dec 24, 2014 20:44
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Nerobro posted:Carbon is black. If there are other colors, it's not carbon. A common thing is to weave fiberglass or kevlar in and dye those fibers. http://www.thethreadexchange.com/miva/merchant.mvc?Screen=CTGY&Store_Code=TTE&Category_Code=Kevlar-Thread-information
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Dec 24, 2014 21:54
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edmund745 posted:I don't want that, its too expensive. The mini FPV stuff is generally really expensive even if you DIY. You are really at the mercy of what Chinese companies decide to produce in bulk. You can get a Sony boardcam for $10 on ebay, but you still need a video tx/rx and a monitor and a way to power it all. The tx/rx is going to be easily $50, then the screen can be expensive or cheap, depending on what you get. The goal of night-vision and everything with a screen for under $100 is unlikely. Notice how many of the parts mentioned in earlier posts are at least $20 each (LCD/VTX/VRX/Camera) for even a basic setup.
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Dec 25, 2014 04:58
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My Minion has been fighting against me getting it in the air. First the guy forgot to ship me the ESCs (sent them expedited, along with my replacement Acro Naze32). Then I got to the point today to power up the ESCs, and was greeted with a puff of smoke from the one. Double checked the wiring, which was fine, and opened the shrink wrap. Motor seemed coils measured fine, but I was getting 12 ohms across the ESC outputs 2 and 3. Infinite between 1 and 2, as well as 1 and 3. Not sure if that was due to the transistors frying, or a build defect. Carried on with the build in the mean time. Checked the rotation of the remaining 3 ESC, and managed to get all 3 backwards. Easy fix in the ESC firmware. Wired up the Naze32 with the motor signal wires, the satellite Rx, and the beeper. Adjusted the PWM throttle start timing on the ESC so they all come on just under 1100 throttle signal. Set up fail safe so it doesn't spin motors if the radio is off, and won't idle when armed. Just need the replacement ESC, get that one set up, Zip tie the ESC down, and I should be ready to try flying it. One thing I still need to figure out, is where I connect the current sensor voltage signal to. It mentions a channel 2 or channel 8, which I'm assuming means the pins on the Rx header. Doesn't seem to work using the GIO/FT pad. And picture of the build so far.  I'll worry about the FPV stuff after I get used to flying in rate mode. But I've left myself lots of room. I'm thinking of trying to mount it to the top plate. That way the bottom is the main unit, with the FPV gear coming away when I take the top plate off.
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Dec 25, 2014 05:59
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on the left posted:The mini FPV stuff is generally really expensive even if you DIY. You are really at the mercy of what Chinese companies decide to produce in bulk. You can get a Sony boardcam for $10 on ebay, but you still need a video tx/rx and a monitor and a way to power it all. The tx/rx is going to be easily $50, then the screen can be expensive or cheap, depending on what you get. I paid $86, total for my FPV setup. $37 for the headset (the quanam one) $32 for the 5.8 vtx setup, and $15.55 for the (sony 1/3") board camera. My next camera setup is costing me about $40, between the $18 transmitter and $20 camera. Choosing a slightly more expensive camera would have gotten me night vision. Those prices are with shipping.
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Dec 25, 2014 06:20
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What did you do for a receiver and antennas and power?
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Dec 25, 2014 10:45
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on the left posted:What did you do for a receiver and antennas and power? The VTX was a kit, with both transmitter and receiver. Power is straight off the 3s battery. They come with antennas too.
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Dec 25, 2014 10:48
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mashed_penguin posted:The level of slapfighting involved in this is pretty drat funny. But I would say the guy running cleanflight seems to be a lot more into the actual open part of open source. If people don't want someone to fork their work then they shouldn't release it under a GPL licence. Open source doesn't mean stealing credit for other people's work. None of the additional features to cleanflight/gui are hydra's code. A Yolo Wizard posted:I'm also seeing a lot more places openly selling acro naze clones now (alongside official ones). The only problem with naze clones are when hacks like witespy farm out the circuit design to taobao and create new hardware bugs, which then fall back on the original designer to support.
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Dec 25, 2014 18:53
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edmund745 posted:I don't want that, its too expensive. I would just buy the baby monitor and find an old 27 mhz radio for the vehicle. Perhaps look into a tracked vehicle platform if it has to be able to get over pipes and fit under a low overhead. You have to be careful of interference with any FPV gear because it is all just re purposed security camera crap.
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Dec 25, 2014 20:46
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The Blade 120 SR I mentioned dad picking up? Turns out he was being a sneaky rear end and actually getting it for me for Christmas. S'okay though, I got him a Syma X6 so he could practice flying Quads with something big, tough, and able to handle a bit of wind   Now I have a coax and a fixed pitch single rotor. The collection is steadily growing 
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Dec 26, 2014 00:23
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CrazyLittle posted:Open source doesn't mean stealing credit for other people's work. None of the additional features to cleanflight/gui are hydra's code. these are the ones i saw, made by the guy who does the armattan frames http://www.armattanquads.com/mullet-acro-flight-controller/ (also a full version for $40)
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Dec 26, 2014 00:55
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I'm having a really hard time not gifting myself one of the new Eagle Tree Vector flight controllers. Has anyone played with one?
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Dec 26, 2014 01:02
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MrYenko posted:I'm having a really hard time not gifting myself one of the new Eagle Tree Vector flight controllers. flite test did this month https://www.youtube.com/watch?v=zrZmfKhibnA
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Dec 26, 2014 01:16
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MrYenko posted:I'm having a really hard time not gifting myself one of the new Eagle Tree Vector flight controllers. Yes, I've got one in my QAV400. It's amazing. I'm planning to use one in any quad it'll fit in from now on. BabelFish fucked around with this message at 08:25 on Dec 26, 2014 |
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Dec 26, 2014 01:55
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A Yolo Wizard posted:these are the ones i saw, made by the guy who does the armattan frames http://www.armattanquads.com/mullet-acro-flight-controller/ (also a full version for $40) Hm, I wonder if that's one of the custom runs that timecop did for a few other makers. *edit* Nope! a shameless ripoff. CrazyLittle fucked around with this message at 09:01 on Dec 26, 2014 |
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Dec 26, 2014 05:19
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So I'm planning out my next build and the KISS ESC's look super awesome. But they are expensive and lots of people are blowing them up. 
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Dec 26, 2014 14:30
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If people are blowing them up, they're not that awesome. *edit* just finished putting together this: 
CrazyLittle fucked around with this message at 20:51 on Dec 26, 2014 |
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Dec 26, 2014 19:48
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| # ? May 9, 2024 05:42 |
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that reminds me I need to finish one of the DLGs I have here. I'm about to go try my first FPV flight in a few minutes... this is a little nerve racking.
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Dec 26, 2014 21:42
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