User Info

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

MultiRotorUK ShoutBox

Refresh History
  • 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!
    July 16, 2018, 09:26:19
  • Bad Raven: Is the issue Turnigy or Turnigy Nano-Tech? I have found that mid-blue Turnigy tend to be low on their stated "C" discharge rating.
    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. :(
    July 15, 2018, 19:54:53
  • Bad Raven: Pre MR's I used to buy a lot from J.Perkins. Their website showed all items and stock or due date, go to dealer and buy with confidence. Then they went all "lifestyle" and all the site had were pictures or people. I wasn't after people. I never bought again. Yes, you'd think they'd learn...........
    July 15, 2018, 17:51:40
  • ched999uk: Reman sounds like amazon search. I find it ok unitil you want to search by price then amazon falls apart.... You would think both companies would get it right...
    July 15, 2018, 16:54:55
  • Reman: It's strange. The original setup they had about 5 or 6 years back wasn't too bad (Except for them occasionally getting accounts hacked), But they changed it to the last one that was clunky and slow, Now they've replaced that with a flashier one that's also clunky and slow ?!?!?! Most companies learn from what they do wrong. I don't buy from HK half as much as I used to, Mainly because it takes forever to trawl through 100 pages of totally unrelated stuff while looking for something you were thinking about getting when you saw it there the previous week !!!
    July 15, 2018, 16:27:21
  • hoverfly: I don't think there is a search button on H/King. They updated the site and forgot to  relabel the search button with  Random bo##ocks..
    July 15, 2018, 09:47:35
  • Bad Raven: Agree - The Search is abysmal!!
    July 15, 2018, 08:40:52
  • Reman: I see HobbyKing's revamped their site again...... Shame they haven't made the search function work any better, Or worked out why the whole site goes slower than a pensioner in a Nissan Micra. :)
    July 15, 2018, 08:28:14
  • Reman: How thick is Google? You buy something online, Then for the next week you get targeted adds for the item you've just got?!?! That's the one item you're NOT going to be buying again at that point so it's wasted effort of there part. :)
    July 14, 2018, 08:50:51
  • DarkButterfly: ~~
    July 13, 2018, 23:56:20
  • Kellarly: as does my ability not to realise what i've already typed
    July 13, 2018, 22:25:42
  • Kellarly: Wahooo, my whoop now lives!
    July 13, 2018, 22:25:19
  • Kellarly: yay, the whoop lives!!!
    July 13, 2018, 22:18:43
  • DarkButterfly: Had to replace the battery connector
    July 12, 2018, 10:57:47
  • Kellarly: good work! what was up with it?
    July 12, 2018, 10:39:33
  • DarkButterfly: Fixed my tiny6
    July 12, 2018, 10:23:59

Who's Online

Theme Selection



Forum Default

Permanently

Author Topic: Any thoughts on all in one boards ?  (Read 826 times)

Offline aburn09

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 456
  • Liked: 74
  • Country: gb
  • Tricopter, one prop short of a Quadcopter
Any thoughts on all in one boards ?
« on: May 12, 2017, 06:18:32 »
« Last Edit: June 07, 2017, 07:53:08 by aburn09 »

Offline Cheredanine

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 4738
  • Liked: 1236
  • Country: gb
  • Cleverly disguised as a responsible adult
Re: Any thoughts on all in one boards ?
« Reply #1 on: May 12, 2017, 07:32:51 »
Several  thoughts -
Firstly AIO is abused frequently, for example kiss are producing an AIO that includes the escs, this one doesn';t, that isn';t really important but it bugs the hell out of me :)

Secondly, and now we get serious - having high current, and particularly rapidly changing high current, running close to sensitive components such as a gyro on the flight acontroller and particularly the video signal line, is not a good idea. i have talked about this with several electronic subject matter experts and they are all sceptical about AIO boards for this reason.  It may be fine but it may not, any issue would be difficult to diagnose and impossible to rectify

Thirdly durability - if you blow something in an aio you are replacing the whole thing, add to this an aio board is very busy, pads are small, it would be easier to lift a pad during soldering.

Finally for, factor of the frame - many frames have built in pdb or don';t really suit things like large pads coming out the back of the flight controller, typical examples would be chameleons, dquad obsessions, tsx off the top of my head. This clearly is applicable to specific frames and specific aio fc

So overall I am sceptical. Especially the second point above. I wouldn';t use one unless I need one, and I don';t need one on any of my quads

Offline aburn09

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 456
  • Liked: 74
  • Country: gb
  • Tricopter, one prop short of a Quadcopter
Re: Any thoughts on all in one boards ?
« Reply #2 on: May 12, 2017, 08:47:38 »
Thanks Cheredanine I had a feeling you';d comment on this thread as you seem to be very well versed in the electrical side of our hobby 😉
All your points are very valid as usual.........So it looks like a separate pdb and flight board are still in order for my next build when Bangood get the zorro 220 frame in then  :azn
The trouble with this hobby is things change so fast and it';s hard to know if the latest gadget or gizmo is as good as the manufacturers claim..........I always spend time on building my quads so that are as neat as they can possibly be as I';m not one for having wires on show if I can hide them somewhere so when there are new parts for quads that require less wires etc it does grab my attention......... which is why I love this forum as before I';m tempted I';ll usually run it passed those in the know on here (mainly Cheredanine  :laugh:) who can give me an unbiased view  ~~........By the way Cheredanine any opinions over the Zorro frame as originally i was thinking of this one
https://m.banggood.com/GEPRC-GEP-LX-Leopard-LX4-LX5-LX6-195mm-220mm-255mm-FPV-Racing-Frame-4mm-Arm-With-PDB-5V-12V-p-1134161.html
A cheaper clone of your Obsession which I still like the look of but the only niggle is the arms are held together with screws so there is a potential for movement where as the Zorro
https://m.banggood.com/TransTEC-ZORO-Race-Lite-195mm-220mm-3K-4mm-Carbon-Fiber-FPV-Racing-Frame-p-1134568.html
 is one solid all in one 4mm baseplate so theoretically  solid ?

Offline Cheredanine

  • Trade Count: (0)
  • Hero Member
  • *****
  • Posts: 4738
  • Liked: 1236
  • Country: gb
  • Cleverly disguised as a responsible adult
Re: Any thoughts on all in one boards ?
« Reply #3 on: May 12, 2017, 09:22:37 »
I should add on the aio other than those frames where it simply not workable, I am clearly in favour on playing it safe on point 2.

Re the frames, not had either, the leopard is very popular, I have no principle objection to either, other than two general observations on cheap Chinese frames:

Screws - tend to be cheap and nasty, easy to rip the thread or the hex - it is simple to fix, I would suggest getting some good screws, ideally steel or titanium, from a reputable supplier and switching out the origional

Carbon - not all carbon is the same. Ignoring the carbon laminates that walkers use, the pure carbon on the cheap Chinese stuff is generally strong enough although not as strong as (admittedly overpriced) non - Chinese frames, however the amount of flex is important as it causes (or rather reinforces) oscillations.

Now, re single plate or seperate arms, in principle I prefer single plate, it is lighter.

But if you get involved or stay abreast of bf development you will be aware there is a known correlation between oscillations that can';t be got rid of without messing with the tune with single plate, I.e. You are less likely to get them with seperate arms.

However I suspect this is due to the aforementioned quality of carbon and flex.
I have, for example, a prototype Tokio-x, the carbon is superb, single plate and I can not make it flex, it has zero oscillations and i DNA get a superb tune on it.

So with that in mind, although I prefer a single plate, particularly if I was choosing between those two frames, I would take the one with seperate arms