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  • hoverfly: Still have a couple of orange tipple batts still working,   mainly part time... ::)
    July 16, 2018, 16:42:16
  • Bad Raven: The difference being most will not deliver the power but wil not be trashed in trying!
    July 16, 2018, 16:12:57
  • Kellarly: hehe, nothing changes there then!
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    July 16, 2018, 08:37:09
  • ched999uk: RaceDayQuads have some cheap but good batts out now. Josh B tested and stats say very good especially at price. HobbyRC have 1300mAh 4S just under £20. Not had luck with Turnigy lipos either!!
    July 15, 2018, 22:48:51
  • Reman: Just realised that I hadn't gone through my stored Li-Po's for about a month. I try to visually check them every Saturday, And prod the plugs with a multimeter about once a month. Todays seen 12 more bulging packs go out to the incinerator..... All but one was a bloody Turnigy! Part of me wan't to burn the rest now and just get a load more Tattu packs, But I've spent good money on these packs and wan't to at least get a little more use out of them. :(
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Author Topic: What did the postman bring today?  (Read 493160 times)

Offline DerbyshireDrones

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Re: What did the postman bring today?
« Reply #2010 on: January 13, 2017, 18:41:34 »
400 6045 Props  :laugh:
Visit our store! - www.DerbyshireDrones.net

Offline Jake Bullit

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Re: What did the postman bring today?
« Reply #2011 on: January 13, 2017, 19:04:20 »
Shuriken X1

"Roads? Where we're going, we don't need roads."

Offline Bajadre

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Re: What did the postman bring today?
« Reply #2012 on: January 14, 2017, 12:51:30 »
Thanks to makeitbuildit.co.uk received my Furious True-D Diversity Receiver System,spare cover and menace patch antenna  ~~

super fast too only ordered yesterday @ 3pm!!  :beer2:
Emax nighthawk 280,Emax x4,Blade 350qx3,dx6 (gen2),fatshark doms v2.

Offline Saleem

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Re: What did the postman bring today?
« Reply #2013 on: January 14, 2017, 16:03:31 »
I got from Banggood,
2 20x20 micro FCC with inbuilt pdb (pikoblx clones)
4x racestar 30a blheli_s esc (not v2) though.
Flysky a6 tx
5 sets of walkera ladybird props.
1/4 cmos 600tvl camera.

Yesterday I recieved an eachine tx02 transmitter (not the camera/tx version,just the tx)
 :smiley:

Offline CHR1S

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Re: What did the postman bring today?
« Reply #2014 on: January 16, 2017, 15:07:55 »
good old Mr Postman just dropped off my new frame and motors



Offline Revs

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Re: What did the postman bring today?
« Reply #2015 on: January 16, 2017, 15:27:11 »
^ ';bout time you posted!  ~~

Offline Powernumpty

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Re: What did the postman bring today?
« Reply #2016 on: January 16, 2017, 15:34:26 »

Offline ched999uk

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Re: What did the postman bring today?
« Reply #2017 on: January 16, 2017, 17:06:56 »
A new pump for my central heating. Now fitted and system bled. We have heat again  :smiley: :smiley: :smiley:
No quad bits  :cry

Offline Revs

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Re: What did the postman bring today?
« Reply #2018 on: January 16, 2017, 17:49:10 »
A bottle of IPA and some more 63/37 solder to try, this time UK made stuff. That Chinese stuff was shocking!

Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2019 on: January 16, 2017, 18:07:17 »
A bottle of IPA and some more 63/37 solder to try, this time UK made stuff. That Chinese stuff was shocking!
Chinese IPA?  :o

Offline Revs

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Re: What did the postman bring today?
« Reply #2020 on: January 16, 2017, 18:20:18 »

Offline Revs

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Re: What did the postman bring today?
« Reply #2021 on: January 18, 2017, 12:33:57 »
Yay! Bumper frame (pre-built in grey)..

[attachimg=1]

Offline Revs

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Re: What did the postman bring today?
« Reply #2022 on: January 18, 2017, 15:13:09 »
But wait, there';s more..

[attachimg=1]

LuxV2 for the Alien 6" and a XM RX for the Bumper. Lumenier have really turned things round with the V2. SPI logging with on-board SD card, MPU6000, 5 UARTs, Dshot without modding, etc.
« Last Edit: January 18, 2017, 15:35:27 by Revs »

Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2023 on: January 18, 2017, 15:45:57 »
But wait, there';s more..

[attachimg=1]

LuxV2 for the Alien 6" and a XM RX for the Bumper. Lumenier have really turned things round with the V2. SPI logging with on-board SD card, MPU6000, 5 UARTs, Dshot without modding, etc.
Agree mate, although betaflight f3 board may tip them, the brother osd for the lux still use mwosdbut good buy

Offline Revs

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Re: What did the postman bring today?
« Reply #2024 on: January 18, 2017, 15:51:41 »
Agree mate, although betaflight f3 board may tip them, the brother osd for the lux still use mwosdbut good buy

I';m using the RJX RROSD (RROSD clone with higher amp rating, 160A not 100A) for the osd and I';m getting on well with it. I think I';ll swap to a bF OSD in the future though, I like the idea of OSD tuning.

I';m not sure about the OSD hardware integration with the FC though. The MAX chips used for OSD are very prone to issues and I would rather be able to replace just that instead of the FC if/when it gives up.
« Last Edit: January 18, 2017, 15:57:29 by Revs »

Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2025 on: January 18, 2017, 16:04:45 »
I';m using the RJX RROSD (RROSD clone with higher amp rating, 160A not 100A) for the osd and I';m getting on well with it. I think I';ll swap to a bF OSD in the future though, I like the idea of OSD tuning.

I';m not sure about the OSD hardware integration with the FC though. The MAX chips used for OSD are very prone to issues and I would rather be able to replace just that instead of the FC if/when it gives up.
To be fair I have been using mwosd for ages (microminims and osdoge), they allow tuning etc but for the mo am mostly using foxeer arrow v2 to give me battery voltage on osd and that';s all I want

Offline Revs

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Re: What did the postman bring today?
« Reply #2026 on: January 18, 2017, 16:42:44 »
To be fair I have been using mwosd for ages (microminims and osdoge), they allow tuning etc but for the mo am mostly using foxeer arrow v2 to give me battery voltage on osd and that';s all I want

The main thing I like and the reason I use the RROSD is the built in current meter and the fact that it';s plug and play. It just shows mAh used, current, flight time, voltage and RSSI. No calibration needed.

Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2027 on: January 18, 2017, 16:50:48 »
I have used the rrosd but recently tried the tbs powercube elite bundle - very nice

Offline Elmattbo

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Re: What did the postman bring today?
« Reply #2028 on: January 18, 2017, 18:39:03 »
Came back from a few days away to an armattan scx200, tornado t2 motors, rotorgeeks ssd fc, and a GoPro mount. Sadly no esc';s yet so after a quick build session last night (5v integration on the fc from the outset makes things so much quicker!) the build is sitting there almost ready, but not quite...



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Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2029 on: January 18, 2017, 18:59:10 »
Came back from a few days away to an armattan scx200, tornado t2 motors, rotorgeeks ssd fc, and a GoPro mount. Sadly no esc';s yet so after a quick build session last night (5v integration on the fc from the outset makes things so much quicker!) the build is sitting there almost ready, but not quite...



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Good combo mate,
Bfrc9 includes SSD target and flying nice for me
What escs you going with?

Offline Elmattbo

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What did the postman bring today?
« Reply #2030 on: January 18, 2017, 20:24:34 »
I';ve ordered a set of racerstar 25A. Props will be 5x4x3. Correct me if I';m wrong here, but i imagine that a 2206 will actually pull less amps for a given prop for a given kv than a 2205; the extra torque gives a better efficiency on acceleration and a lower amp draw. I haven';t got any telem to prove it, what';s your experience?

Obviously that';s balanced against the greater current to provide the added torque in the first place!


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Offline Revs

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Re: What did the postman bring today?
« Reply #2031 on: January 18, 2017, 20:48:40 »
I';ve ordered a set of racerstar 25A. Props will be 5x4x3. Correct me if I';m wrong here, but i imagine that a 2206 will actually pull less amps for a given prop for a given kv than a 2205; the extra torque gives a better efficiency on acceleration and a lower amp draw. I haven';t got any telem to prove it, what';s your experience?

Obviously that';s balanced against the greater current to provide the added torque in the first place!


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I was actually looking in to this the other day, browsing motor performance at www.miniquadtestbench.com. From what I can tell, yes a larger motor is more efficient with the same kv and prop. The other thing to consider is that the bell is slightly heavier and the motor has more power, so it';ll draw/regen more with rapid rpm changes.

Going from say a 2205 to a 2207 may get you 5-10% more efficiency. Then again, carefully choosing your motor can get you even more. Efficiency varies massively between motors, even ones of seemingly similar spec. The Oomph motor for example are in their own league for efficiency.

Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2032 on: January 18, 2017, 21:18:57 »
Actually that is a little oversimplified, whilst what you are fpgenerally describing is broadly true, there are a number of factors that stop that from being a nice simple rule

I use 5inch triblades, they range from light ones such as hq5x4x3 on which a motor like cobra champion or xnova 2205 2300kv is as effective as a good 2206 2300 and saves weight to kore heavy/aggressive which over prop the 2205 2300s, they still perform but are less effective and efficient.
I would say I can not tell the difference in flight between tornado t2, returner r4 and armattan oomph 2206 2300, the latter two have a better build quality, but otherwise they are essentially the same motor.

Lumenier 2206 2350 kv are interesting, they can handle the same props, but produce less too end but are more efficient across the whole throttle

Tried higher kv motors (zmx v3 2206 2600kv and xnova 2206 2500kv) both just give me top end I don';t use and are less efficient

The interesting thing is to look at the bf configurator and the p and r rates. You are commanding a rate of p or r in degrees per second, assuming we can all reach it then the difference between two quads is the time it takes them to accelerate and decelerate
Rolls for example are muscle memory, I roll my quads with the same p and r rate fine regardless of them being the cobra 2205 or armattan oomph, which suggests with the light props on the cobras I have the same acceleration and breaking as the heavy props on the armattan :)

Offline Elmattbo

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Re: What did the postman bring today?
« Reply #2033 on: January 18, 2017, 21:21:17 »
I was actually looking in to this the other day, browsing motor performance at www.miniquadtestbench.com. From what I can tell, yes a larger motor is more efficient with the same kv and prop. The other thing to consider is that the bell is slightly heavier and the motor has more power, so it';ll draw/regen more with rapid rpm changes.

Going from say a 2205 to a 2207 may get you 5-10% more efficiency. Then again, carefully choosing your motor can get you even more. Efficiency varies massively between motors, even ones of seemingly similar spec. The Oomph motor for example are in their own league for efficiency.

They were my first choice but as with all new motor fads, they';re out of stock everywhere!

Glad to see my theory seems to add up. The other thing is over propping with aggressive props; there';s a fine line between powaaaaah and meh. If you sag your battery too much you lose rpm which sort of defeats the object. From there the losses snowball with reduced efficiency and much shorter flight times. I know Steele Davis suggests that there';s a sweet spot with ~2300kv and 5x4x3 on 22xx size motors and I tend to agree with him.

Having said that, I';ll give the 5x4.5x3 cyclones a whirl on this build as well, but they';re heavy little monkeys and my 2205 powered alien is definitely livelier with longer flight times on 5x4x3.


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Offline Cheredanine

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Re: What did the postman bring today?
« Reply #2034 on: January 18, 2017, 21:43:27 »
those are great motors, the 25a escs are 30 amp burst and you won';t want to be at full throttle for long :)
You won';t have problems with cyclones, or more agrresive HQ tris or racekraft 5051 with that motor/esc combo.

What you will need is a decent lipo, with the most aggressive of the props I mentioned you will be pulling something like 80-90 amps at WOT in flight (you can cut 20-30% off the bench figures for flight figures) cheap lipos will sag with that pull

Offline Elmattbo

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Re: What did the postman bring today?
« Reply #2035 on: January 18, 2017, 23:06:35 »
Thanks for the advice. I';ve got a bunch of 1300 graphenes and 1400 multistar racers to play with. Both are 65c and pretty good although graphenes have the edge.


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Offline Revs

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Re: What did the postman bring today?
« Reply #2036 on: January 18, 2017, 23:46:26 »
They were my first choice but as with all new motor fads, they';re out of stock everywhere!

https://www.electricwingman.com/armattan-oomph-motors-2300kv-pair ;) in stock for now. In fact, I';m gonna grab some for the A6

BTW if you haven';t tried the HQ5x4x3 V1S PC get some, they';re awesome.

EDIT:  :embarrassed I got the last set, sorry  :whistling:
« Last Edit: January 19, 2017, 00:14:03 by Revs »

Offline clivesax

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What did the postman bring today?
« Reply #2037 on: January 19, 2017, 00:41:48 »
FEATURES
The Fatshark 18650 Li-Ion cell headset battery case is a way of holding 2 18650 batteries to provide a 7.4V nominal voltage for use with existing FatShark gogglescase will fit into the standard head strap like the standard FatShark battery packs. This allows you to have a large battery capacity when used with high capacity cells (batteries not included). Batteries should be removed and charged via a dedicated 18650 style charger.
http://www.buildyourowndrone.co.uk/fatshark-18650-cell-battery-case.html



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« Last Edit: January 19, 2017, 00:49:10 by clivesax »

Offline Gav

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Re: What did the postman bring today?
« Reply #2038 on: January 20, 2017, 09:45:18 »
New build for me, XuGong V2 foldable camera ship


Offline Revs

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Re: What did the postman bring today?
« Reply #2039 on: January 20, 2017, 12:02:10 »
The Fatshark 18650 Li-Ion cell headset battery case

If they';d only gone to the effort of fitting the middle balance lead wire, I would have one..