User Info

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

MultiRotorUK ShoutBox

Refresh History
  • ched999uk: BR  ::)
    January 16, 2019, 22:26:54
  • Bad Raven: That's a warrnty claim if ever I heard one....
    January 16, 2019, 20:32:55
  • ched999uk: My 28 year old 12v 35w Weller soldering iron failed  :( I didn't fancy forking out £100 for a new one. Stripped it down and found conductor snapped in cable. 10Mins later all back working great. :smiley: ::) I am very happy!!
    January 16, 2019, 17:23:06
  • shawdreamer: "look up there....its a drone!.....and whats this noise?..... no.....no..... it cant be!....NOOOOOOOO.......OOOOOOOOOOOOOPS I DID IT AGAIN, I PLAYED WITH YOUR HEAR....."
    January 10, 2019, 14:17:24
  • shawdreamer: <starts downloading britney spears albums and preping his large frame to carry a PA system>
    January 10, 2019, 14:15:08
  • Bajadre: defo steveo :) we should get loads of drones together up there so how they handle more that one lol
    January 08, 2019, 19:39:07
  • steveo9007: its all a ploy to get who ever has won the contract for geofencing the airport in, i reckon  ::)
    January 08, 2019, 18:38:26
  • Bajadre: more lies hope they prepped the police staement already lol
    January 08, 2019, 18:27:49
  • Bad Raven: Take Offs resumed
    January 08, 2019, 18:24:45
  • steveo9007: yeah not good though is it..what will come out of this now its happened at both major airports  :o
    January 08, 2019, 18:05:13
  • Bad Raven: Planes still landing, appears take offs affected
    January 08, 2019, 18:02:47
  • steveo9007: newsflash people, drone sighting at Heathrow Airport  just received on news app..
    January 08, 2019, 17:54:07
  • shawdreamer: tsk x2, just checked my thingiverse messages too... another a8 owner asking if one of my designs would work with his printer.... I said no as its not fire proof.... now he seems confused :confused:
    January 05, 2019, 15:35:09
  • hoverfly: Some people,  he's probably heading for a Darwin award... :laugh:
    January 05, 2019, 13:58:53
  • shawdreamer: tsk.... a new Anet A8 owner asking for mod suggestions for his xmas first printer on thingiverse... I suggested a fire suppression system or atleast a wall mount for a fire extinguisher and smoke alarm..... he removed my post.... no helping some people :shrug:
    January 05, 2019, 12:42:05
  • Reman: I did double check it with a metre (Mainly because I knew if I didn't check the polarity this would be the time the manufacturer had gone off script and put the negative in the middle of the coax) and felt slightly cheated because it was only making 19.7 volts. :)
    January 04, 2019, 14:01:11
  • Bajadre: yeah heat and wring never a good thing only a matter of time :(
    January 04, 2019, 10:12:57
  • Bad Raven: Well, it should! Rated for 24v. Be careful, have you checked the PSU output?  Many psu that (say) are supposed to be 12v actually output 16-18v. Is your 20v actually less than 24v??
    January 04, 2019, 08:41:14
  • Reman: Just modified the cable on a 20V 7A PSU to connect to my TS100........ It.... Erm..... Heats up a bit quicker than it did on 12V. LOL !!!
    January 03, 2019, 20:04:11
  • Reman: I didn't try to taste it, but it gave off that kind of smell that gets you in the back of the throat. :)
    January 03, 2019, 16:18:35

Who's Online

Theme Selection



Forum Default

Permanently

Author Topic: What fc for...... whatever you call what I do  (Read 267 times)

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
What fc for...... whatever you call what I do
« on: October 22, 2018, 16:07:28 »
So, today I've had my first experience of the NAZA "flip of death" - thankfully just three props broken but it's not really something I want to repeat in a hurry. I'd heard of it but really wasn't expecting it. Obviously, I'm not gonna rush out and give up on £160 worth of fc just because of one crash but I'll start considering its replacement just in case.

So I've been looking around at different fc's out of curiosity but there's so many - I really wouldn't know where to start :hmm:


At the moment, I'm happy with nice steady flights about 50-100m up and just seeing the world from a different perspective, both looking down and also enjoying the view. I think secretly I've always wanted to pilot a plane but I've never even flown so it's all fascinating to me.

So, some details for a start. Hopefully there'll be a system that really stands out as ideal for me

I have a 650 quad frame on the way, I'll be running 5008 400kv motors and 1855 props on this frame so the fc needs to be ok with that. The currant should be around 25A max and I have 30A bl_heli dshot esc's to go with it.

I really like having RTH so I'd consider that a must

I'd be interested in autonomous flight but probably only a passing interest so it's not a deal breaker

Would need to be as good (or better) at holding it's altitude as the Naza

Would need to have OSD, preferably built in but easily added is fine too

I'm not particularly interested in acro/speed, stability and reliability would be the priority

Preferably under £100 but I'd like to hear all the options so anything goes for now

Despite being fairly young, computers aren't really a strong point so would need to be fairly straightforward to tune/setup (hardly any more complicated than naza assistant).

I bought the NAZA for simplicity in putting everything together which was nice but I'm not bad at all with a soldering iron so, if it's the sort that needs a certain amount of assembly it's not a problem

Any suggestions?

Offline ched999uk

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 3059
  • Liked: 667
  • Country: gb
Re: What fc for...... whatever you call what I do
« Reply #1 on: October 22, 2018, 17:56:51 »
What happened with the flip, what were you doing at the time?
Not had any unidentified issues from mine. I did have a wire come off gps, but that just went to manual mode. I also had a magnet come loose in one motor but that just sort of lost power and descended. I had a faulty transmitter gimbal (well potentiometer) that gave interesting yaw characteristics.
No I did have 1 flip but that was on take off. I think that was down to me not calibrating things and doing the 'naza dance'  or it was after a landing where I didn't land on level ground and it tipped over then next flight it flipped but no damage.

Offline apollo7

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 2076
  • Liked: 745
  • Country: gb
Re: What fc for...... whatever you call what I do
« Reply #2 on: October 22, 2018, 18:47:12 »
by any chance were you descending at time of flip, if so did you drop to zero throttle, i once had a naza quad flip in this situation but it righted itself and flew okay
S600 Naza quad, C1 chaser, Volantex Ranger 1600 and 2 eashine 680 batwings

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #3 on: October 22, 2018, 18:58:30 »
Actually I've had a couple more flights since and have a theory but to answer your question; I'd flicked the rth switch, just playing really but it looked like it was going to land on my car so I flicked the switch to manual and was about to change that to GPS but moved the craft away from harm first when it just turned upside down and accelerated into the ground 😔 I've read a few stories involving manual mode and random flips and watched several videos of the same.

However, since then I've had a total of three props break in flight - all out of the same pack! There's no noticeable vibration from the motors so I'm inclined to think I may have a bad batch - they were the very cheapest I could find....

Offline ched999uk

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 3059
  • Liked: 667
  • Country: gb
Re: What fc for...... whatever you call what I do
« Reply #4 on: October 22, 2018, 19:22:56 »
Just a thought. When you 'manual' mode I assume you actually mean Atti mode?
Manual mode is non stabilised and the same as Rate mode. It is very difficult to fly in manual mode, it allows flips and rolls etc!!!! If you kept the pitch forward stick a little forward in manual mode it would slowly produce a flip!!!!
Atti mode is stabilised same as gps but without the gps elements. i.e. if you push the pitch stick a little forwards the quad tilts a little forwards and stays at that angle until you let go of the pitch stick then it levels it's self!!!

So don't use manual mode use Atti. On mine I had a 3 position switch for modes. 1st = gps, 2nd = atti, 3rd = RTH.

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #5 on: October 22, 2018, 19:30:40 »
I did mean manual - I went out of my way to set a mix up so I had all 4 modes (That's now been changed back obviously). That said, I'd simply pushed the pitch stick forwards very gently to fly 20m or so away from where me, the dog and the car were. When I got about that distance, I may well have released the stick - would that have caused a flip?

Offline ched999uk

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 3059
  • Liked: 667
  • Country: gb
Re: What fc for...... whatever you call what I do
« Reply #6 on: October 22, 2018, 20:18:36 »
In manual mode keeping the stick forward would have caused the quad to continue to increase the tilt angle.
When you release the stick the quad would stay at the tilt angle and keep going forwards!!
So I doubt releasing the stick would have caused the flip.
When you say mix, did you set it up on the tx to use 2 switches? I assume that it was OK in the assistant? No confusion? I know early on and still now to a degree when something unexpected happens it difficult not to panic and flick a switch or move the sticks too aggressively.
Bit weird having 3 props break. I use Gemfan ones on mine (Carbon Nylon 1045 Propeller) at about £2 a pair.

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #7 on: October 22, 2018, 22:14:22 »
Yeah, don't ask me how I did it though except lots of trial and error. I had GPS, atti and manual on the three position switch and the switch next to it overrode all three and put it into failsafe.

The props are goolrc, I finally got around to buying 10 pairs so I'd have less down time but I'm starting to regret going with this particular brand, although it is just a theory so far

Offline name last name

  • Trade Count: (0)
  • Newbie
  • *
  • Posts: 1
  • Liked: 0
  • Tricopter, one prop short of a Quadcopter
quadcopters
« Reply #8 on: October 23, 2018, 14:29:39 »
Recently I met with syma x21wpro.  Kopter very much, for dating the most it.  Are there any worthy analogs at the same cost and with the same dimensions and camera?  Translation into a smartphone is not required, but let him write to himself.  Interested in models.  I found a couple here https://www.bestadvisor.com/quadcopters but still, I don’t know which one is better.

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #9 on: October 24, 2018, 14:45:42 »
Yet another failed prop today, I heard it go but unfortunately this time it was a fair way up. This time it's terminal I think, I'll just take the electronics off and wait for the new frame to arrive.

Can't say I'm impressed, I don't suppose you get any comeback from the manufacturer (goolrc) either?


Offline ched999uk

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 3059
  • Liked: 667
  • Country: gb
Re: What fc for...... whatever you call what I do
« Reply #10 on: October 24, 2018, 17:32:48 »
WOW. Can't believe how bad the props are. On my 5" quad I have bent them straightened them had chunks missing and stress marks before they have let go and I don't think I have had one fail mid air!

That is bad luck. I assume you cant contact seller and ask at least for a refund? They must also be very dangerous as letting go mid air could fire them anywhere!

Feel so sorry for you mate. You have put so much time and effort in to have such damage due to terrible props.

You will be getting to be such an expert in rebuilding.

Get some genuine gemfans, don't waste money on carbon fibre ones yet as you might break them in crashes. When you have more experience flying then get some carbon ones as they are less flexible and stiffer giving a more locked in feel that you might not appreciate yet. Plus they are a bit more brittle so even a slight tip over can take a chunk out of them.

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #11 on: October 24, 2018, 18:14:30 »
Cheers fella, I can't be too upset really as it was stupid to fly at all let alone 70-80m up while I doubted something. Another lesson learned I guess.

One plus is that I now have the electronics off and ready to go on the 650, apart from the receiver which is in the bin - k.i.a. incidentally, is there anything I need to know about binding/programming the replacement?

I have 18" c/f props on the way for the new frame, there didn't seem to be much in the way of plastic/carbon nylon about over about 16" but I'll have another look and hopefully save a bit in the long run.

Offline hoverfly

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 2882
  • Liked: 1244
  • Country: gb
  • Quads, lots of quads
Re: What fc for...... whatever you call what I do
« Reply #12 on: October 31, 2018, 20:18:31 »
A bit late but I would always stress test props on the ground, secure it to something solid and run up the motors to full throttle while standing well clear. If they fail don't use them... ~~
Reptile folder , alien 500 , F/ Shark Attitudes,
 .Tarot 650, Air-rio Kinetic.. DX9  Various wings and planks.. Taranis x9D+..Mavic..Armattan.. Chameleion...
Massive over draught.....

Offline tipsy trucker

  • Trade Count: (0)
  • Full Member
  • ***
  • Posts: 165
  • Liked: 33
  • Tricopter, one prop short of a Quadcopter
Re: What fc for...... whatever you call what I do
« Reply #13 on: November 01, 2018, 08:07:21 »
I'm not sure it would have helped much to be honest, two broke on take off bit the others were fine for a while before letting go for no apparent reason; no crashes or brushes with anything, some didn't need balancing either so I can't blame my technique when it comes to that either. I think most went with very little load/throttle, which is strange.

I'm eagerly awaiting the new parts, I'll post my progress when I have enough parts to get started