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it's a good day when you go to charge a LiPo and it's at 0volts. 10 minutes in NiMh mode, at 5 amps... and viola, it's over 6v. Now, it's charging normally. 2000ma into the pack so far...
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Feb 27, 2015 08:08
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Nerobro posted:it's a good day when you go to charge a LiPo and it's at 0volts. I see you like to live dangerously.
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Feb 27, 2015 08:23
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Golluk posted:I see you like to live dangerously. You can tell the pack is charging because it's getting bigger!
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Feb 27, 2015 19:17
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Nerobro posted:it's a good day when you go to charge a LiPo and it's at 0volts. And I was worried today because I ran a 3s battery for longer than I normally would and one of the cells got down to 3.25 while the other two were at about 3.35...
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Feb 27, 2015 21:33
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Golluk posted:I see you like to live dangerously. you can bet I didn't take my eyes off that pack for the duration of the charge. Funny thing is? My CHARGER overheated and shut down, the battery only got "a little warm" at a 5 amp charge. The outside case of my DC6 was 125 degrees 3 minutes after it shut down. It was 122 when it actually shut down... Total mah to fill the battery? 600 from the initial charge, 2700 from the first balance charge then shutdown. 500 from the next attempt. Then I let it cool, and it put a final 1200mah in. It's a 4000mah battery. That.. seems about right. And it the hard case, is still the right size and shape. Arrest that rear end! posted:And I was worried today because I ran a 3s battery for longer than I normally would and one of the cells got down to 3.25 while the other two were at about 3.35... I won't say what I did was "smart" or "ok." But it was a $45 battery, and it had only been cycled once. I figured it would survive. I bet it's remaining cycle life is going to be pretty short.
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Feb 27, 2015 22:28
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You can do what you like, it's just it seems like a bomb type situation. You did this outdoors away from anything flammable, right?
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Feb 27, 2015 22:29
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Arrest that rear end! posted:You can do what you like, it's just it seems like a bomb type situation. You did this outdoors away from anything flammable, right? "Seems" and "is" are different things. It was indoors, on a fire resistant surface. And I was never more than a foot or two away. That said, it was a bit of a nerve wracking thing to do. Stupid stuff is a little less stupid if you're keeping a constant eye on it. You'll note I know the temperature of the charger.. I was checking temps, and looking for cell distortion the whole time. I'm still amused that the thing that gave up, was the charger. The whole episode was still a lot less abusive than 4c charging, or 40c discharging. :-) 5amps is 1.25c on this pack.
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Feb 27, 2015 22:49
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This is probably one of the best 3D helicopter vids I've seen: https://www.youtube.com/watch?v=ZAeO_1DoNy8 Crazy stuff!
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Feb 28, 2015 03:18
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After a few hours of screwing with it spread out over 2 days I finally got my little Super-X to fly smoothly. I was a little depressed when I couldn't immediately get it working. I didn't even know how to bind the thing to my Orange T-six(You turn on the T-six while holding the trainer switch) since all the tutorials for the thing use a Spektrum Tx. After that I couldn't get the motors to arm even though the board said it was bound to the tx. Through a few rounds of changing numbers and writing to the multiwii I discovered I could arm the motors by assigning ARM to Aux5, throwing the switch, then power-cycling the transmitter. It wasn't the switch that did it, it was a combination of that and turning the tx on and off again really quickly that got the motors spinning. At that point I could fly it, but it was a mess. It would immediately pull to the back right if I throttled up slowly, so I had to really quickly throw it up into the air while trying and not hit my ceiling. Once it was up it responded to my controls super slowly and drifted really bad. Anyways I got home today after reading up on it at work and got my Tx throttle trimmed to slightly more than 1900 and changed the MINTHROTTLE MAXTHROTTLE MINCOMMAND MINCHECK MAXCHECK numbers to ones I pulled from 60 pages of RCGroups forum posts. Now the motors arm perfectly and it controls super smoothly. I need some foam earplugs for the feet though, it is making some rough landings. I also buuuutchered the magnometer calibration because I tried to do it with the super short FTDI tool cable and the props still on. So far I haven't used headless mode though. Barometer mode sort of works when I tried it low to the ground, but when I tried it at about 5 feet up it just descended so I have to play with that a bit more. Seems like a slowly descend to floor mode. EDIT: Already broke a leg, replaced all of them with earplugs. 
bring back old gbs fucked around with this message at 06:23 on Mar 1, 2015 |
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Feb 28, 2015 04:54
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ImplicitAssembler posted:This is probably one of the best 3D helicopter vids I've seen:  Some people can fly copters, but some know how to make them DANCE.
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Feb 28, 2015 09:08
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Yeah, that was nothing short of amazing. There were a few times when I seriously expected his tail rotor to touch the ground, that dude has some serious skill 
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Feb 28, 2015 19:14
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I can't imagine the literal mountain of wrecked parts he generated to become that good.
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Feb 28, 2015 21:25
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Mister Sinewave posted:
What I'd love to see is his hands while he does that. I can't imagine how fast he is not only just moving the sticks but flicking other channels around to change modes and such. I think I could hover that first 2 seconds of the video, after that it would look like just before I crashed it every other second I tried to fly, lol..
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Mar 1, 2015 01:54
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I like fuselage style quads where you can hide everything. I think your arms are too short.
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Mar 1, 2015 13:55
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The arms are just right for 5" props. I just finished six of them with angled motor mounts.
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Mar 1, 2015 19:48
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Reminder to comment here if you're in the US: http://www.regulations.gov/#!documentDetail;D=FAA-2015-0150-0017
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Mar 1, 2015 22:19
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Alright I crashed this thing and now it's acting weird, any Multiwii guys I could use your insight: It was flying perfectly, I hit throttle too hard, it smacked the ceiling, then hit the tile. After a hard crash like this I usually have to push the motor shafts back into position which I did this time. When I went to start the quad back up again the back left motor would not spin, and even at full throttle there wasn't enough power from the remaining motors to even budge it on the floor. I thought I damaged an ESC but then I remembered I could plug the board into my PC and fiddle with the TX to see values change. Doing so I can see now that at full throttle my motors are doing this:  When before the crash they would all power up equally. Now I can see that full throttle is only putting the front left motor at full, Front R and Rear L are at ~1600 and Read R is at 1400. Is is Rear L that will not spin even though the GUI says it should be receiving a value of 1614 at full throttle. What did I do here? I am confused. The motor itself appears undamaged. I can spin it freely and there is no grinding noise or any sort of resistance other than the magnets. EDIT: Okay none of that information above means anything because the throttle changes based on how the quad is angled. In the mean time I've re-assigned the ESC output from the Rear L to the 5th and 6th ESC output connectors, and re-calibrated the ESC's but the Rear L motor won't budge like the other 3 when it does the test. I guess the plan is to swap this ESC with another arm's ESC and see if that one fails to spin now. EDIT2: Swapped the ESC with another one and the other motor spins fine, so I guess my Rear R motor is hosed, not the ESC. bring back old gbs fucked around with this message at 00:20 on Mar 2, 2015 |
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Mar 1, 2015 23:29
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ease posted:I like fuselage style quads where you can hide everything. I think your arms are too short. A few pictures of this weekends progress.         
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Mar 1, 2015 23:55
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That video TX arm holding the bend in the cable is pretty badass. I have two possibly naive questions. - The two antennas coming out at an angle, I assume one is for your receiver but what's the other? Also, is the angle chosen for any particular reason? (This is from photos in the gallery) - In the last photo the motors are angled with shims; how do you know what to put there as opposed to just mounting the motors flat?
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Mar 2, 2015 04:34
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I think most people are going for about 10 degrees. Both of those antennae are likely part of a diversity setup on his receiver (lots of 2.4 ghz receivers come with two) and you get the most of of it when they're 90 degrees apart.
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Mar 2, 2015 16:25
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Mister Sinewave posted:That video TX arm holding the bend in the cable is pretty badass. As menttioned previously those are a diversity antenna set for the Frsky D4R receiver. The motors are shimmed because this was originally designed as a quad and now that I have added more motors the props overlap.I could have just made a spacer and raised the middle motors up but by putting them on an angle I don't have to worry about the blades hitting each other and it provides a degree of forward thrust since this thing is meant for racing. Someone on reddit doubted the strength of my arms so I did a little load test. https://www.youtube.com/watch?v=XS2JFgcAFEE Maxed out the scale at 2500 grams and still not even close to a prop strike. Should be more than adequate when the motor puts out less than 700 grams of thrust.
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Mar 2, 2015 23:00
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ImplicitAssembler posted:This is probably one of the best 3D helicopter vids I've seen: Jesus christ
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Mar 3, 2015 07:37
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Do you guys know any hints/methods for getting better at flying 3D helicopters? I have a nano qx 3d that I can somewhat fly around stuff in my living room (in 3D mode, the two stabilized modes are pretty easy to control), but I still crash it a lot.
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Mar 3, 2015 08:10
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EightBit posted:Do you guys know any hints/methods for getting better at flying 3D helicopters? I have a nano qx 3d that I can somewhat fly around stuff in my living room (in 3D mode, the two stabilized modes are pretty easy to control), but I still crash it a lot. Get a simulator. Not just being a dick or whatever, that's seriously the answer. Realflight and Phoenix are both phenomenal, I personally use realflight.
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Mar 3, 2015 14:20
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EightBit posted:Do you guys know any hints/methods for getting better at flying 3D helicopters? I have a nano qx 3d that I can somewhat fly around stuff in my living room (in 3D mode, the two stabilized modes are pretty easy to control), but I still crash it a lot. Get a good simulator and skip the super micro stuff. A blade 180 is the smallest you should go and expect to be able to learn anything. I have had an MCP-X and two Nano CP-X's and they flew terribly; once I jumped up to a good 450 my progress increased much, much faster. I finally edited the footage I have been getting with my NEFPV Mini H: https://www.youtube.com/watch?v=fUYsLyTtC2I
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Mar 3, 2015 14:46
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Wojcigitty posted:Get a good simulator and skip the super micro stuff. A blade 180 is the smallest you should go and expect to be able to learn anything. I have had an MCP-X and two Nano CP-X's and they flew terribly; once I jumped up to a good 450 my progress increased much, much faster. That NEFPV stuff looks fun & cheap.. what sort of fpv setup do you use?
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Mar 4, 2015 12:28
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Heres another fpv option up for preorder. Basically like the quanum goggles with a better monitor, receiver and molding http://www.headplay.com/shop/headplay-hd-with-58ghz-rx
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Mar 4, 2015 15:46
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http://www.suasnews.com/2015/03/34560/taking-photos-of-the-planes-going-by-at-klia/ This is why we can't have nice things.
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Mar 4, 2015 16:09
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HobbyKing is having another sale - an SK450 RTF from the int'l warehouse is ~125$ I am still waiting on backorder for my first quad, but it's pretty tempting.
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Mar 4, 2015 18:53
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I really want to buy this FPV Plane: http://hobbyking.com/hobbyking/store/__38072__HobbyKing_174_8482_Go_Discover_FPV_Plane_EPO_1600mm_PNF_.html I have no idea how to fly one, and there is nowhere in my city that I could fly it.
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Mar 4, 2015 19:45
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helno posted:A few pictures of this weekends progress. Did not know this was hex, that's why it looked funny. That thing looks rad.
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Mar 4, 2015 21:14
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32MB OF ESRAM posted:I really want to buy this FPV Plane: 32MB OF ESRAM posted:I have no idea how to fly one, and there is nowhere in my city that I could fly it. No sir, do not pass go. Learn to fly first.
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Mar 5, 2015 01:10
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Sure fly in a safe place above all but go hog wild, buy that thing learn to fly on it and don't look back. Foam planes take an amazing amount of ogrish flying and landing making them perfect for this purpose. Hands on method best method 
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Mar 5, 2015 01:16
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Mister Sinewave posted:Sure fly in a safe place above all but go hog wild, buy that thing learn to fly on it and don't look back. How many bixlers did you manage to kill in the process? 
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Mar 5, 2015 01:22
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Only one but it could be more and would change nothing 
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Mar 5, 2015 02:11
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ease posted:Did not know this was hex, that's why it looked funny. Well let me tell you that hexacopters require 50% more soldering. I dont think i will ever do an octo. Just need to finish printing the RX moount and add some props and it is ready for tuning.    
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Mar 5, 2015 03:30
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If I wanted to buy this to learn to fly a quad copter, what controller should I go with? A friend has been linking me to drone videos non-stop recently and I came across one that recommended the nano XQ because it's cheap and impossible to kill.
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Mar 6, 2015 07:01
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padijun posted:If I wanted to buy this to learn to fly a quad copter, what controller should I go with? A friend has been linking me to drone videos non-stop recently and I came across one that recommended the nano XQ because it's cheap and impossible to kill. If you're looking for a decent, cheap starting transmitter, the entry level Spektrums are okay (the DX5e, maybe). If you want something you'll be able to use longer, the Walkera Devo line is pretty decent, especially when flashed with the Deviation firmware. If you're okay with spending some serious money and want to buy the one transmitter you'll ever need to buy, you want the FrSky Taranis with a DSMX module, which is probably the best air transmitter you can buy, but is by no means cheap. On the absolute opposite end of the spectrum, if you were hoping to spend more like $20 on a transmitter, the stock Nano QX RTF transmitter is definitely not the worst starting transmitter you could use, but you'll want a new one pretty fast if you buy more multirotors.
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Mar 6, 2015 07:33
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ionicism posted:If you're looking for a decent, cheap starting transmitter, the entry level Spektrums are okay (the DX5e, maybe). I'm really looking for something cheap as gently caress to learn the basics on, I'll pretty much be using it line of site, short range only. Once I feel confident enough in my abilities to fly something worth a couple hundred bucks, I'll probably pass it on to a friend who's interested in learning. Do you have a link to the Nano transmitter?
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Mar 6, 2015 07:52
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ionicism posted:If you're looking for a decent, cheap starting transmitter, the entry level Spektrums are okay (the DX5e, maybe). Erh, just get a Turnigy 9XR.
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Mar 6, 2015 07:54
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