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Opinions about the TBS Crossfire stuff? I'm looking to get out of 2.4GHz control on the mid-term, given that I'm in the EU and they're tightening regulations around the 2.4GHz band up really hard. Very soon, receivers need to be tamperproven, so that you can't install custom firmwares to bypass regulations. While not an issue yet, whenever I'll break one of my existing receivers, I'll eventually be in deep poo poo and need to upgrade everything FrSky and be subjected to power limits and this LBT bollocks, which affects latency.
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Jul 20, 2016 16:42
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Is there anything stopping you from installing US opentx firmware on the radio / receivers, and just buying non EU receivers from china (or will they check that upon import). Crossfire is good, the receiver options are not awesome however. No telemetry with the micro rx, and they are both a bit expensive
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Jul 20, 2016 18:27
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Not yet. Upcoming EU regulations will prohibit selling 2.4GHz devices, whose radio and transmission parameters can be modified (officially or not so much) to work outside the regulations. So it means, if one of my receivers breaks around fall or later, I have to go Ebaying for used ones, or try to import something from outside the EU and pray that customs doesn't notice (some shops don't even deliver non-compliant devices to the EU, say trying to get FrSky gear from HK Intl doesn't even work. Also, I have yet to get an international package that hasn't been opened by customs). Considering I want to start jerryrigging a bunch of FPV planes pretty soon, I figured maybe all this 2.4GHz stuff can get hosed. Especially since the current EU firmware with LBT (as required per reg.) already messed with my reception as it is. As far as the telemetry goes, everything I need is in my OSD. The only interesting thing on my Taranis would be Link Quality, which should work regardless.
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Jul 20, 2016 21:08
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twoday posted:Hello drone nerds, maybe you can give me some advice. I'm shopping for a drone and I'm in over my head. This is a page old but I feel compelled to reply based on having similar requirements. This is the CX-20. http://www.banggood.com/Cheerson-CX20-Opensource-Version-AutoPathfinder-Quadcopter-RTF-p-932145.html It falls within your price range and can carry a gopro. It's got an apm in it so it can do fancy automated stuff if that's your thing https://vimeo.com/97056189 It's got voltage out on the bottom so you can connect your fpv stuff to it.   Bad: Because it uses some homebrew board rather than a proper pixhawk, there's no documentation available about connecting an optical flow sensor to it. The best precision you're going to get on landing is about a meter radius. Also the gps module kind of isn't great and stopped working recently. But the mission planner software is smart enough to report the fault and refuse to arm the motors - a fault mode I find preferable to "flyaway drone," which is something the early versions of the CX-20 had a problem with. If you can stand poor documentation and a build quality that seems to have utilized the absolute cheapest parts available, there's a drone in your price range. I can't say whether the CX-20 is the right quad for you. But as for myself personally - I wish I'd spent about another 6 months researching and started with a pixhawk and built around that.
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Jul 20, 2016 22:30
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Thanks for taking the time to reply. I've already put the GoPro and an old tablet up for sale, saving up for a phantom. The gimble is really nice, and so is the fact that it can be controlled with software that can help automatically generate 3D models. Drone deploy seems to be really cool, especially. https://www.youtube.com/watch?v=q3wXggCqY_8
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Jul 21, 2016 10:37
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twoday posted:Thanks for taking the time to reply. I've already put the GoPro and an old tablet up for sale, saving up for a phantom. The gimble is really nice, and so is the fact that it can be controlled with software that can help automatically generate 3D models. Drone deploy seems to be really cool, especially. The Phantom is a pretty good deal. You can also cobble together a DIY version yourself which is basically an F450 kit that I now have. But unless you actually want to screw around with it (which I did because I clearly didn't have enough nerdy hobbies), it's probably not worth it if you can just get a used Phantom or a new one with a good discount. BTW you can also use something like PhotoScan instead for generating 3D models, it doesn't even need geocoding and you'll have more control over the process. Speaking of the F450, I finally got all my FPV poo poo - Quanum goggles and using a Xaiomi Yi's AV out. The quality is great and latency quite acceptable - not good enough for hardcore racing but should be just fine for puttering around and aerial photography. Anyway, before the first FPV flight I still have to fix the drone  . My last crash broke an arm and a nut went missing. I replaced the arm, and a hardware store nut and washer seem to work ok.However what caused the last crash was one of the props just coming off mid-flight. I never had any issues with the nuts loosening with original DJI props, but I suspect the aftermarket ones didn't fit as tightly and the vibrations caused the nut to loosen and come off eventually. I now have yet another aftermarket set and they're not DJI-tight either, so I'm worried I'll have the same thing over again. How do you guys keep the props from flying off?
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Jul 22, 2016 10:52
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Self-tightening props
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Jul 22, 2016 12:27
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mobby_6kl posted:BTW you can also use something like PhotoScan instead for generating 3D models, it doesn't even need geocoding and you'll have more control over the process. Dronedeploy is incredibly easier than previous solutions, and relatively cheap. Altizure has a better flight route for doing 3D stuff (integrated oblique way pointing, not just the overhead stuff - you have to do that manually with dji go and point of interest right now). But you can stick thhe photos in any of these services and offline programs, regardless of what you used to capture them (including photoscan) Also use nylon threaded nuts or blue Loctite (but not both!!)
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Jul 22, 2016 12:37
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What the gently caress are you doing hobbyking https://www.youtube.com/watch?v=yS3cXil2QIs I just wanted that pterodactyl ornithopter but it was only in the international warehouse for $70 shipping moron izzard fucked around with this message at 13:25 on Jul 22, 2016 |
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Jul 22, 2016 12:39
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^^^ Haha holy poo poo A Yolo Wizard posted:Dronedeploy is incredibly easier than previous solutions, and relatively cheap. Altizure has a better flight route for doing 3D stuff (integrated oblique way pointing, not just the overhead stuff - you have to do that manually with dji go and point of interest right now). But you can stick thhe photos in any of these services and offline programs, regardless of what you used to capture them (including photoscan) Altizure sounds pretty sweet, haven't seen it before. Using stand-alone software probably only makes sense if you don't also have a complete autopilot capability as well, otherwise it's easier to just click and forget. I did get some nylon-insert M6 nuts but they don't feel like they'll go on with anything resembling a reasonable amount of force. I might have some locktite form my car somewhere around. Don't those rely on having left- and right-handed threads on CW and CCW motors? All the nuts on my quad are interchangeable unfortunately.
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Jul 22, 2016 13:43
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Phantom 3 4K ordered! What is a reasonable number of batteries to have?
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Jul 22, 2016 20:36
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twoday posted:Phantom 3 4K ordered! Unless you really need 4k video, I would always take an advanced over the 4k. the standard and 4k lack the dedicated RC link and use your devices wifi, limiting range (the 4k should take the exact same photos as the standard as well - the only difference is in video). 3 batteries minimum. I currently have 6. Don't buy the third parties, I know the price is tempting, but they get locked out occasionally by DJI.
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Jul 22, 2016 20:43
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It's pretty crazy that there's not more monetising (gov. Regulating) going on with drones and joe P. They could basically become a small, portable, flying, exploding, peaceful message from the prophet M. The M actually looks like an icon a drone would have.
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Jul 22, 2016 22:08
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Please go
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Jul 22, 2016 22:56
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wut
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Jul 22, 2016 23:10
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osietra posted:It's pretty crazy that there's not more monetising (gov. Regulating) going on with drones and joe P. They could basically become a small, portable, flying, exploding, peaceful message from the prophet M.
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Jul 22, 2016 23:17
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Yeah. P much lol
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Jul 22, 2016 23:34
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is this guy hasslin you nice people?
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Jul 23, 2016 07:01
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SoundMonkey posted:is this guy hasslin you nice people? If posting like a mentally ill anti Muslim chatbot is hasslin then yeah prob https://forums.somethingawful.com/banlist.php?userid=177685
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Jul 23, 2016 15:31
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Holy gently caress that guy
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Jul 23, 2016 15:48
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Hey kids I have what I hope is an easy question. I just switched to a Spektrum radio from Tactic - which is like going from Mac to PC, nothing is where I expect it to be. I also picked up E-Flite's 1.2meter Trojan. Now, HTF do I configure the flaps? I can't get the 6th channel to work. The other five *four plus retracts* work fine. Spektrum DX6i
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Jul 23, 2016 23:28
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Scrodes posted:Hey kids Usually there are specific instructions for each spek radio in the big manual (there was in my apprentice s 15)
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Jul 24, 2016 00:57
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hey anti muslim chatbot osietra or olestra or whatever: cram it.
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Jul 24, 2016 04:09
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A friend of mine's been looking to get into quadcopters to do some basic aerial photo/video while not spending too much. Which is a bit tricky, but he found this SYMA X8G for pretty drat cheap: http://www.gearbest.com/rc-quadcopters/pp_324558.html It seems to be able to handle a gopro strapped underneath though I'm not sure about a gimbal. Also not sure if it requires the SYMA transmitter (which is super cheap anyway) or works with spektrum or something. Has anyone used one of those? Would a Cheerson CX-20 as posted above be four times better? http://www.banggood.com/Cheerson-CX20-Opensource-Version-AutoPathfinder-Quadcopter-RTF-p-932145.html
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Jul 24, 2016 12:38
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pixhawk in a phantom 2 shell makes a good diy airframe. I just finished up mine. http://www.3drpilots.com/threads/pixphantom-phantom-2-pixhawk-lite-conversion.5809/
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Jul 24, 2016 17:50
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So I like the building process more than the flying process, and picked up a bunch of cheap frames from hobbyking. Anybody want a commissioned build? I'll charge next to nothing (maybe $40?) on top of material cost for builds 
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Jul 25, 2016 03:15
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SoundMonkey posted:hey anti muslim chatbot osietra or olestra or whatever: cram it. (USER WAS PUT ON PROBATION FOR THIS POST)
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Jul 25, 2016 23:38
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What would be considered average and maybe "long range" distances for consumer drones? I've got a colleague that's interested in doing some characterization of antennas or radios or something and he was spitballing about just attaching it to a drone and using that as a testbed. I have no idea if he'll hit platform limits before he gets the data he actually wants. What's the farthest a drone can reliably get from you? Is it based on the operating frequency? The environment? The battery life of the drone (aka not enough juice for the return trip)? It seems like DJI stuff can go a few miles or so? Thanks. I know nothing about this but mentioned I would poke around.
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Jul 26, 2016 02:54
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DragonLink, EzUHF and TBS Crossfire. I've spent mostly investigating latter, because it integrates nicely with the Taranis (OpenTX supports the Crossfire's digital protocol, allows for precise low latency control, instead of using lovely PPM). TBS claims that it can go up to 100km at full power. Of course, the video link is limiting in this case, too. I suppose 1.3GHz video is most appropriate, I guess ideally with a dipole for less loss over a circular. TBS' test had video up to these 100km, forgot what system they used for video. Also, I've made a new splashscreen for upgrading my Taranis since almost never.  --edit: According to their video ( https://www.youtube.com/watch?v=ULVwMSL5xac ), they've used 2.4GHz video with some Yagi antenna, i.e. this thing: http://www.team-blacksheep.com/products/prod:tbs_gs_2g4 Also, as for range, I think I've seen another video where someone did like 12km with a DJI Phantom Combat Pretzel fucked around with this message at 03:07 on Jul 26, 2016 |
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Jul 26, 2016 02:58
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Again, since I know nothing: as I'm looking at the TBS stuff, if they wanted an out-of-the-box solution based on that platform, I should research something like this? http://www.team-blacksheep.com/products/product:931 Sorry if this is all vague. The requirements he's described to me aren't really that concrete as best as I can tell, and I'm sort of in the dark in how to compare performance characteristics. I'm only doing this because there's a chance I'll get roped into the project in some fashion.
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Jul 26, 2016 03:15
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Star War Sex Parrot posted:What would be considered average and maybe "long range" distances for consumer drones? I've got a colleague that's interested in doing some characterization of antennas or radios or something and he was spitballing about just attaching it to a drone and using that as a testbed. I have no idea if he'll hit platform limits before he gets the data he actually wants. What's the farthest a drone can reliably get from you? Is it based on the operating frequency? The environment? The battery life of the drone (aka not enough juice for the return trip)? It seems like DJI stuff can go a few miles or so? Consumer drones are limited to a few miles. Most are using 2.4ghz for control, 5.8ghz for video. DIY drones: For direct link, you can go 100km+ on 433mhz control and 1.3ghz video. You can a pretty good distance on a directional antenna and 2.4ghz video too.
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Jul 26, 2016 03:34
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All of that requires a ham license in the US, BTW. Even the 5.8ghz stuff.
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Jul 26, 2016 03:46
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insta posted:All of that requires a ham license in the US, BTW. Even the 5.8ghz stuff.
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Jul 26, 2016 03:48
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I think a fixed wing system just going out and back might be a better long range vehicle for testing. Stone Blue Airlines does build services and can definitely set you up with a capable rig for antennae testing.
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Jul 26, 2016 04:21
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osietra posted:Unless you've been creeping on my posts, my 'rap' sheet has more banning about Isaac Rosenberg (Not the rapper) (who is incidentally the best WW1 poet, also Jewish, but poor as gently caress, but was like Blake in the trenches.) really unsure why you thought "cram it" was a suggestion although i guess i was creeping on your posts in the sense that i read reports either way kindly depart
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Jul 26, 2016 07:29
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Star War Sex Parrot posted:Again, since I know nothing: as I'm looking at the TBS stuff, if they wanted an out-of-the-box solution based on that platform, I should research something like this?
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Jul 26, 2016 12:06
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Drone newb here, does anyone know of a relatively inexpensive drone that can be used for photogrammetry?
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Jul 26, 2016 19:13
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Rubber Slug posted:Drone newb here, does anyone know of a relatively inexpensive drone that can be used for photogrammetry? Phantom 3 standard (p3 advanced better) moron izzard fucked around with this message at 21:05 on Jul 26, 2016 |
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Jul 26, 2016 21:01
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That's what I was looking into, actually. Looking at DJI's site, I'm finding it hard to tell what the advantages of the Advanced are over the Standard. The camera seems identical, but I've heard the controller for the Advanced is slightly better. Is it worth the extra dough?
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Jul 26, 2016 21:14
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Last night I realized I have a LOT of glue on my desk. And I really don't spend a whole lot of time making ~models~ on my desk. Though, that rule has been out the window the last two weeks. It all started with this laser cut F6F kit.  This isn't my first time around the block. I've built a few other Guillows kits over the years. So I just started building it. I'm older, I'm pickier, and I discovered a few problems. First of all, the plans, are ~not~ complete. Second, my kit came with two of sheet A, and no sheet B of the balsa. But I didn't discover that until late in the build.  That set of plans, gives you no indication of the side keels. I didn't even notice they were missing until I had nearly completed the airframe. Thankfully Guillows happily sent me a replacement sheet of laser cut parts, so with few day delay, I was able to build the whole plane.  Now, my real plan, is to build the plane into a full house 4 channel ship, with 2s brushless power. But I don't want to screw up this one. Ebay is full of cheap Guillows kits. And $50ish dollars later, I bought a Skyraider, a P-51, a P-40 warhawk, and a spare F6F kit. At the same time, I'm building a DLG. Well, built, a DLG.  It's 52 grams. I want to say I've built this design four times before. Almost every time it's been terriably overweight. This time, it's only 2 grams heavy. And building those is how I got reasonably good at applying carbon tow. I also bought some kevlar thread for doing the control surfaces. As a "how to check my work" plane, I built the skyraider. The Guillows wings bug me, and always feel weak to me. So I wanted to try putting some carbon on them. Adding carbon tow to the two top spars, and the leading and trailing edges at least doubled the stiffness. But doubling "limp noodle" doesn't really mean much.  I also used some brass tubing to make bushings for the control surfaces. The ailerons are driven by the setup stolen from the T-28  The elevator uses the sprung surface design stolen from the DLG. You can see the guitar string I bent into a torsion spring here.  I've got some other pictures of the skyraider to show. I started covering it last night. Glue sticks are awesome for doing tissue covering. And 50/50 water/alcohol mix makes for some fast shrinking of tissue.
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Jul 26, 2016 22:04
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