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I'm sketching up some frame designs in 3dsmax for my own-design quadcopter, to see what goes and where to save space, before trying to dick around in a CAD program and make files for cutouts. The ESCs are annoying as gently caress due to their size (at least the 20-30A ones). Any reason to avoid 4-in-1 ones, apart from having replace it completely when a single internal ESC blows up?
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Aug 13, 2015 17:39
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put them on the arms
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Aug 13, 2015 17:46
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32MB OF ESRAM posted:Thanks guys! This is the most coherant bit of 3d printing advice i've heard. Ever. And I'm a member at PS:1 which has four operational 3d printers.
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Aug 13, 2015 18:05
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i might get a Tiny Boy but I am a member of and volunteer at a Makerspace so I have access to a lot of printing power. also lumenier is getting in the 180mm frame biz too http://www.getfpv.com/multi-rotor-frames/qav180-qav210-mini-fpv-quad.html
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Aug 13, 2015 19:59
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the nicker posted:put them on the arms
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Aug 13, 2015 21:34
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Combat Pretzel posted:I want to use round Carbon tubes.  IN the arms!You could print a bracket that would clamp to the rod, but have a flat top to mount the ESC with a few zipties. Combat Pretzel posted:The arms in question have only 16mm outer diameter. 3D brackets may be an idea, since I need to print camera mounts, too, but I'm still looking to have as much inside the body (including most part of the 5.2Ah battery I want to use (on a 400 size drone bring back old gbs fucked around with this message at 22:25 on Aug 13, 2015 |
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Aug 13, 2015 21:51
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Combat Pretzel posted:I want to use round Carbon tubes. And soon we'll be seeing stubby airfoils... :-)
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Aug 13, 2015 22:10
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The arms in question have only 16mm outer diameter. 3D brackets may be an idea, since I need to print camera mounts, too, but I'm still looking to have as much inside the body (including most part of the 5.2Ah battery I want to use (on a 400 size drone  )).
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Aug 13, 2015 22:11
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I'm fighting with some ESC positioning stuff myself right now. I'm building a ZMR clone and I kind of want to get some standoffs and put my ESCs under the body but I'm worried that not having them on the arms, as well as having them all in close proximity, will affect their temperature. Being on the arms they get some downwash from the props and generally more airflow. Not sure whether it's better to just toss my idea and mount them on the arms even though it doesn't look as "elegant". I bought two frames -- one is my "I'm loving around" frame and one is my "I'm trying hard to make this look good" frame.
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Aug 13, 2015 23:25
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Elendil004 posted:The FAA continues to remain fully inside it's own rear end in a top hat. I live in New Zealand and recent legislation changes mean that I can only fly on private property makes it drat near impossible to actually fly. Thinking of just getting out of the hobby.
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Aug 13, 2015 23:56
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Odette posted:I live in New Zealand and recent legislation changes mean that I can only fly on private property makes it drat near impossible to actually fly. Thinking of just getting out of the hobby.
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Aug 14, 2015 00:19
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Part 101 posted:Consent Summary: If I visit a local park, I have to obtain the permission of the following:
This is a little bit ridiculous. Ironic that this is the next paragraph in the rulebook: quote:If you cannot obtain consent, or obtaining consent is impractical, it may be a signal that your operation is too hazardous to be conducted under Part 101. You can apply to the CAA to be certificated under Part 102. Part 102 allows the Director of Civil Aviation to work though different options with an operator and/or to relax or remove one or both of the consent requirements altogether. Said certification costs something in the range of $fuckoff to $tooexpensive.
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Aug 14, 2015 00:30
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Odette posted:Said certification costs something in the range of $fuckoff to $tooexpensive. Aviation.txt, right there.
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Aug 14, 2015 00:55
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Those rules are nuts:( I watch a bunch ofyoutube videos from an older New Zealand guy that is in constant fights with the government/ only flying club in the country. I broke one of my rules(and probably a bunch of by laws) and took my little 3s 5030 quad to the park today. Got it stuck in tree branches twice and had to throw my shoes at it to knock it down. loving thing is a beast. Easily my best quad yet. It is all the guts from my Morphite 155 minus the motors and little frame so no surprise there. The 1806 2280kv motors haul rear end and don't even get hot unlike the 1306 3100kv motors that come with the Morphite. The 3100's weren't playing very nice with my PLA frames at all. If anybody has some 12-20A ESCs and motors with 2 10mm/2 16mm mounting points and wants to build one I will put it up on Thingiverse. I'd like some feedback from a more experienced flyer. EDIT: I also found this online which maybe you guys already know about but oh well: http://www.iforce2d.net/mixercalc/ An interactive motor mixing calculator, input numbers or drag and drop motors around and it will give you the proper mix amounts to put into Cleanflight/Multiwii. bring back old gbs fucked around with this message at 02:46 on Aug 14, 2015 |
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Aug 14, 2015 02:41
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32MB OF ESRAM posted:Those rules are nuts:( I watch a bunch ofyoutube videos from an older New Zealand guy that is in constant fights with the government/ only flying club in the country. Think somebody earlier in the thread posted about him. He got into a fight with the authorities because he showed how you could build a cruise missile from hobby components  He does have some pretty cool youtube videoes.
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Aug 14, 2015 11:44
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refleks posted:Think somebody earlier in the thread posted about him. He got into a fight with the authorities because he showed how you could build a cruise missile from hobby components Amusingly, he also happily answers e-mails regarding that project... as I found out three days ago. While we're at it. Guess what I'm doing at lunch today? 
Nerobro fucked around with this message at 15:35 on Aug 14, 2015 |
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Aug 14, 2015 15:12
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Nerobro posted:Amusingly, he also happily answers e-mails regarding that project... as I found out three days ago. Well you certainly aren't going out to buy more batteries.
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Aug 14, 2015 16:24
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32MB OF ESRAM posted:Well you certainly aren't going out to buy more batteries. I was charging the last night.. Turns out I have 45 batteries or so. I just started numbering them. On a related tack.. would anyone want a small battery tester? these things are not easy to determine the health of.
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Aug 14, 2015 18:03
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Nerobro posted:I was charging the last night.. Turns out I have 45 batteries or so. I just started numbering them. Want? or Have? I'd think the only meter method would be a load test to check their internal resistance. But then you'd have to have the original resistance as a base measurement.
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Aug 14, 2015 20:39
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Golluk posted:Want? or Have? I'd think the only meter method would be a load test to check their internal resistance. But then you'd have to have the original resistance as a base measurement. Want. I'm about to build one. :-) Transistor, a 1 ohm load, and some voltage sensing should do the trick. I've got enough cells to determine what's good and bad based on voltage drop under load.
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Aug 14, 2015 21:27
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Sometimes I think we should have a thread for legal/policy/flight discussions and a thread for you nerds who like to hack your toaster so it flies. 
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Aug 14, 2015 21:54
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idk about you but the dozen posts or so a week that happen here covering both topics isn't a particularly onerous workload  Although I'd agree that UAS/UAV/etc legal and legislative crap certainly qualifies as its own topic. Also I suppose some people might be interested in one but not the other.
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Aug 14, 2015 23:37
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Welp, annihilated the pan and tilt rig on the RVJet on its two-second maiden flight. Took off beautifully, but then it rolled to the left and ate the dirt so hard it scooped a good chunk of mud out of the ground. I'm thinking my wingtip launch put it at a funny angle and into a crosswind, since even with full right aileron it wasn't able to recover. Other than the nose, the rest of the airframe came out surprisingly unscathed. Got the scrunched parts under some hot water right away and it's pretty close to its original shape. Getting the foam nosecone glued on right now, so hopefully the second flight isn't as disasterous.
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Aug 15, 2015 03:28
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If I'm putting together my first 250 and just learning how to hover and land and things like that, is there any real reason not to put prop guards on it? I got a set erroneously included in a HobbyKing shipment.
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Aug 15, 2015 04:32
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^^^ edit: Don't put guards on it. Like that you learn to value your props and get a throttle cut reflex. Turns out I need to tune my PIDs, because my drone behaves like rear end in rate mode (when I'm not flying it into the ground). It levels out rather quickly, which by the theory means I need to crank I, and it feels mushy, probably too much D ( ). Too bad this stupid CC3D board only supports six channels (no PPM on my RX), so I have to run back up to the apartment and reconfigure TxPID every drat time.
Combat Pretzel fucked around with this message at 04:45 on Aug 15, 2015 |
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Aug 15, 2015 04:41
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With respect to a beginners transmitter, Taranis X9D seems to be the most recommended as you won't grow out of it fast. What if you can't afford one ? As far as I can ascertain, the lower step recommended is Turnigy 9XR Pro? And then Turnigy 9XR or FlySky 9X? Is there anything that I should be aware of when comparing these options?
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Aug 15, 2015 13:46
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For what it's worth, from someone who just got into the hobby and bought the budget Turnigy 9X (not R/D) Tx, after you factor in all the mods you'll likely want to do on the thing, and the fact that you'll want to flash the stock FW anyway, I would probably go with the extra $30 and buy the 9XR Pro ($99 on hobbyking) over the regular 9X. You'll still need to get a transmitter module (and receiver) to go with it which is around $50 from HobbyKing so you're looking at a total of about $150 vs $220 for the Taranis. If you go with the cheaper 9X like I did, you do get a transmitter and receiver which you could certainly use while you budget for upgrades, and the mods you'll likely do won't be too costly ($5 for LCD backlight, <$10 to throw a USB programmer in there somewhere), $20 for the LiPo battery. Just be aware that most people I've talked to seem to prefer to upgrade to the FrSky transmitter/receiver combo which is fine since it's just a box you plug into the 9X (after you cut away some pesky plastic), likely because there's no real advantage to staying with the Turnigy system other than initial investment. I'm really happy with my 9X and I don't see myself outgrowing it any time soon. The plain plastic look makes it a little less gaudy than the faux-chrome of the 9XR IMHO. It'll also help me not feel quite as bad when I have to drill a hole in it to insert a LED for something or maybe it gets scratched up when I toss it in the trunk later. I've probably put in an extra $70-80 into the 9X already, if you factor in the FrSky module, LiPo, USB programmer, and backlight. I still want to do the pager motor haptic feedback mod just because I think it would be really handy to have extra feedback when I'm learning to work the throttle. I'm sure there are people who are perfectly happy with the stock 9X and use it to fly, but to be frank: everyone I've talked to has gone the route of upgrades for OpenTX alone. some kinda jackal fucked around with this message at 14:36 on Aug 15, 2015 |
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Aug 15, 2015 14:31
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refleks posted:Think somebody earlier in the thread posted about him. He got into a fight with the authorities because he showed how you could build a cruise missile from hobby components Spookydonut posted:I guessing this is the best place to ask, I'm planning on doing some cool automation stuff with model rockets. Either he's got a time machine or there's two of them now. Unrelated: I've got a 350 frame which the manufacturer says can mount a GoPro, and a GoPro. But I don't fly the GoPro as I instead cannibalized the camera and video receiver from a JJRC H9D, as those two pieces are the only redeemable portion of that aircraft.  This screen/camera combo only do one channel, and they don't let you select that channel, or tell you what channel it is, other than that it's in the 2.4GHz range, (which I only discovered because the VTx didn't play nice with the flight drone's own receiver). With this combo mounted on the 350 frame with a dedicated battery for the camera - it does not interfere with the ability of the aircraft to fly. This is the best thing I can say about the camera. The auto light balance affects the tint, so foliage looks redder or greener depending on how much sky is in the frame. Also it's got a range of like 100m at which point the signal cuts - no taper, no fuzz, no warning, just no image. This limits use to LOS but LOS is difficult to maintain as the screen is easily the dimmest I have ever used and the only way to see the screen outdoors is to shade it with your body or turn 180° and shade it with itself. It's not impossible to use but also not ideal. What's the latest on fpv right now? Is it still the http://www.horizonhobby.com/fpv-vapor-rtf-with-headset-eflu6600 ? Or is there a cheaper set of hardware I could buy that'd let me use the GoPro for FPV on there? I've heard it's a bit laggy, but I don't care. I use this thing like a camera on a pole. I want to look at things from overhead - not dance about or race.
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Aug 15, 2015 19:08
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DreadLlama posted:Either he's got a time machine or there's two of them now. Spookydonut is just Pyungyang's liason to this thread picking up some tips for the thrifty North Korean Air Force.
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Aug 15, 2015 20:02
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I bumped my little 5030 quad into a wall and a few minutes later so heard a CRACK and it started wobbling a bit in the air. Landed it all pissed, assuming I had cracked the frame but : It did not lose altitude or become uncontrollable, just wobbly. It's like an Octo! I keep stacking 2 frames ontop of each other and really have to resist the urge to buy 4 more motors and turn this into an OctoX
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Aug 15, 2015 22:40
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Hmm. I picked up a 3S 2200mah 1.5c battery for my turnigy 9x (it's the stock 9XR battery) and threw it on the charger. It's been sitting at 12.60V for like 10 minutes now but the charger still hasn't sounded the "finished charging" chime. Is it typical for a charger to sit at full-cap for a while? I've got both the main and balance leads plugged in so maybe it's leveling off the cells, even though I didn't put it in balance mode? Still new at this so I'm obviously unsure. edit: nevermind, I switched to cell-display mode and one was fluctuating between 4.19 and 4.20 for a few minutes but then it finished 
some kinda jackal fucked around with this message at 01:01 on Aug 16, 2015 |
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Aug 16, 2015 00:22
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refleks posted:Spookydonut is just Pyungyang's liason to this thread picking up some tips for the thrifty North Korean Air Force. Ha! Nah I just found out my ice hockey teammate is into model rocketry with no electronics background and I'm into electronics with no model rocketry background and we're putting something together to increase the recovery rate of the rockets (parachutes deployed at high altitude can drift very far).
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Aug 16, 2015 05:23
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This may not be the right place for it, but would anyone in the greater Boston area interested in becoming contract test pilots for a drone company on a hourly basis? PM me for details. Tim Thomas fucked around with this message at 19:26 on Aug 19, 2015 |
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Aug 19, 2015 18:53
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Tim Thomas posted:This may not be the right place for it, but would anyone in the greater Boston area interested in becoming contract test pilots for a drone company on a hourly basis? Change "Boston" to Southwest Michigan and I've got someone who'll fit the bill. 
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Aug 19, 2015 18:56
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I'm right outside Boston, what exactly does it entail?
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Aug 19, 2015 19:16
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I'm near cape cod. Established company. I'll shoot you a pm.
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Aug 19, 2015 19:55
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Turned my tricopter into a quad:  Frame: Armattan Morphling 250mm Flight Controller: Seriously Pro Racing F3 PDB/OSD: QuadRevo PowerOSD ESCs: KISS 30A Motors: Cobra 2204 2300KV Props: HQProp 5x4.5 Bullnose or 6x4.5 Receiver: FrSky X4R-SB Flight Camera: HS1177 600TVL Video Transmitter: Lumenier 600mW 5.8GHZ Antenna: IBCrazy Airscrew BEC: Pololu 1A LEDs: WS2812B Recording Camera: Mobius in 3D printed tilt case Battery: Dinogy 1800mAH 4S or 3S Lots of Paracord  AUW on 4S: 675g More pics here: http://imgur.com/a/lZpJC Martytoof posted:There was one 250 setup I saw somewhere that did a slight pan up to retain visibility of the area ahead when the craft pitched down in high speed flight which was really cool. I wasn't thinking of a full pan/tilt "lookit the pretty scenery" type of thing Yup that kind of set up with just vertical tilt works well, and is useful for landing too if you can tilt your camera down via a switch on your TX. You can set up the servo to tilt the camera automatically as you pitch the quad forwards, but a lot of people find it very sickness inducing to do that. Arrest that ass! fucked around with this message at 22:33 on Aug 19, 2015 |
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Aug 19, 2015 22:20
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As if using video googles while spazzing around in a FPV racer isn't sickness inducing...
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Aug 20, 2015 01:15
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Someone else in here had an inspire - what Sun shade do you use? I'm using an Air 2, and the $15 one i bought on amazon completely sucks - half of the suction cups don't hold at all on the back
moron izzard fucked around with this message at 21:45 on Aug 20, 2015 |
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Aug 20, 2015 21:31
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| # ? May 17, 2024 13:47 |
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http://www.aopa.org/News-and-Video/All-News/2015/August/19/Racing-like-Superman #NEFPV!
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Aug 21, 2015 03:47
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