User Info

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

MultiRotorUK ShoutBox

Refresh History
  • DarkButterfly: They don't make them like they used to
    November 21, 2017, 11:13:03
  • Bad Raven: It's bodged up and running flat out, new one delivered tomorrow........... yes, expensive!!
    November 21, 2017, 09:49:25
  • hoverfly: That sounds expensive, on the up side you have to eat all the grub as it defrosts... :eating:
    November 21, 2017, 09:19:40
  • Bad Raven: Ruddy power surge has trashed the Freezer.................
    November 20, 2017, 22:31:36
  • Bad Raven: Nost of the fish went, "what was that?" followed by "who are you?"  :azn
    November 20, 2017, 20:38:57
  • Bad Raven: One of the shrimps is shell shocked, it's still hurtling around the tanke even now and its little heart is racing..........
    November 20, 2017, 20:37:37
  • Gav: oh was it a good excuse for fish n chips for tea?
    November 20, 2017, 19:55:33
  • Gav: did the fish survive?
    November 20, 2017, 19:39:29
  • Bad Raven: We just had the mother of all supply glitches, one of my fish tank lights sounded like it was arc welding itself, all the lights flickered, internet bombed for over five mins!
    November 20, 2017, 18:08:02
  • shawdreamer: used + in a couple of my early builds, I always managaed to bury the front motor, which left the quad stop up in a appropriately visual grave like cross.
    November 20, 2017, 14:01:07
  • AKK Technology: akk promotion!!! mutiple product with discount
    November 20, 2017, 05:36:54
  • Gav: my first quads were + 'Plus' config
    November 19, 2017, 18:02:11
  • Hozza: I have than enough 5 inch quads, or do I [link] this is one style of frame I haven't got.
    November 19, 2017, 07:57:59
  • Bajadre: n1 phil just noticed on there the 12amp esc blheli being rated for 3-4s while ive been running them on 3s for over a year what a idiot lol
    November 17, 2017, 13:57:29
  • Wyntrblue: always things i want when i have no money phil!
    November 17, 2017, 11:44:50
  • philtrum: Black Friday has started early at MakeItBuildIt, over 100 products on sale with more being added daily. We have limited stock on some offers so be quick before their gone! [link]
    November 17, 2017, 11:37:36
  • hoverfly: I got a 2s,but if I think mucky it turns into 3s.  :rolleyes:
    November 16, 2017, 21:35:49
  • DarkButterfly: I got a 6s which does everything I need and an android for stuff it doesn't.
    November 16, 2017, 20:28:30
  • shawdreamer: :nananana:
    November 16, 2017, 20:20:42
  • shawdreamer: ....sorry Iphone users but you bring it on yourself
    November 16, 2017, 20:20:34

Who's Online

  • Dot Guests: 61
  • Dot Hidden: 0
  • Dot Users: 0

There aren't any users online.

Theme Selection



Forum Default

Permanently

Author Topic: Makerfire FPV problem - no lift!  (Read 255 times)

Offline Ren77

  • Trade Count: (0)
  • Newbie
  • *
  • Posts: 7
  • Liked: 0
  • Tricopter, one prop short of a Quadcopter
Makerfire FPV problem - no lift!
« on: September 12, 2017, 22:41:28 »
Hi there,

I';m new too all this & enjoying the FPV thing round the house, however, after noticing a drop in power & response, my makerfire FPV now fails to gain any significant altitude.

Any ideas why?

Have I worn the motors out? What';s the life expectancy of these?

Have I knackered the batteries by over dis-charging them? How long should these last?

Makerfire RTF version, Crazepony 250mah batteries x4

Thanks in advance!

Ren

Offline Cheredanine

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 3950
  • Liked: 883
  • Country: gb
  • Everything you have been told is a lie
Re: Makerfire FPV problem - no lift!
« Reply #1 on: September 12, 2017, 23:06:55 »
Hi, could be either.
Typically if your lipos start to go they will discharge faster, so initially you will still have lift, but over the flight it will rapidly decrease.

Brushed motors do wear out. You would expect it not to be symmetrical, I.e each motor would wear out at a different time, however if a motor provides less thrust the flight controller will try and compensate by speeding it up and slowing the others down, hence you only get lift at the rate of your slowest motor.

You can get replacements for either but suggest easiest route is get a new lipo and try it (never hurts to buy more batteries)

If that doesn';t fix it then you are looking at motors

Offline Bajadre

  • Site Sponsor
  • Trade Count: (0)
  • Sr. Member
  • *****
  • Posts: 608
  • Liked: 173
  • Country: gb
Re: Makerfire FPV problem - no lift!
« Reply #2 on: September 12, 2017, 23:25:19 »
Hey Ren77  :beer2: welcome to MRUK  ~~

Have you changed anything on the quad recently mate like props etc?
Emax nighthawk 280,Emax x4,Blade 350qx3,dx6 (gen2),fatshark doms v2.

Offline Slobberdog57

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 339
  • Liked: 114
  • Country: wales
  • Minor league aviator, ;-)
Re: Makerfire FPV problem - no lift!
« Reply #3 on: September 13, 2017, 10:37:57 »
6mm motors don';t last long, if the power got gradually worse its that or batteries have gone past their best

how many flights minutes in the air do you recon you have done,
Cost of ongoing battle with Gravity, .........:( Don't Ask :(...........

Typhoon H
Rotorious Rad 5", Gat 4" 1407's on 4s
Rotorious RIP 120 BL, Rotorx 1105b
Taranis Q X7 with hall gimbals

Offline Ren77

  • Trade Count: (0)
  • Newbie
  • *
  • Posts: 7
  • Liked: 0
  • Tricopter, one prop short of a Quadcopter
Re: Makerfire FPV problem - no lift!
« Reply #4 on: September 13, 2017, 11:49:52 »
Thanks for the responses chaps, I think I';ll try both new motors & new batteries.

Flight time total - no idea, est a few hours max?

Wondering about going to a proper controller (taranis qx7 looks like the bang for buck sweet spot) & proper flight controller, suggestions welcome.

Cheers!
Ren77

Offline ched999uk

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 1998
  • Liked: 487
  • Country: gb
Re: Makerfire FPV problem - no lift!
« Reply #5 on: September 13, 2017, 12:04:06 »
I assume you have some way of knowing the battery voltage when flying to protect the batteries? Lipos don';t really like going below 3.7v per cell once rested. If you keep going lower you will damage the cells.

Offline Ren77

  • Trade Count: (0)
  • Newbie
  • *
  • Posts: 7
  • Liked: 0
  • Tricopter, one prop short of a Quadcopter
Re: Makerfire FPV problem - no lift!
« Reply #6 on: September 13, 2017, 14:32:43 »
Exactly that - I';ve no idea, other than if the flight control board has some sort of auto cut-off?