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: 3 out of 4 motors spinning.  (Read 508 times)

Offline Dippi

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 302
  • Liked: 14
  • Country: fi
  • S500 - Naza M Lite - Next build using 3510 360kv
3 out of 4 motors spinning.
« on: August 11, 2017, 10:18:17 »
Well since my last esc issue, i have had to change a motor and an esc. but encounter a strange problem.

All 4 motors don';t run simultaneously, i can';t find the issue.

The motor and esc on arm 1 are new and have been configured individually for the throttle points. The motor just doesn';t spin or has some strange shake and then doesn';t do anything.

To check that i connect motor 1 to esc 2 and motor 2 to esc 1 and then the motor 2 does the same issue.

When i dismantle the esc and the motor and try to configure the end points 1 by 1 all 4 are ok.

What could be the issue, is it the Fc?

Offline Dippi

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 302
  • Liked: 14
  • Country: fi
  • S500 - Naza M Lite - Next build using 3510 360kv
Re: 3 out of 4 motors spinning.
« Reply #1 on: August 11, 2017, 10:23:00 »

Offline atomiclama

  • Trade Count: (3)
  • Hero Member
  • *****
  • Posts: 2461
  • Liked: 780
  • Country: gb
  • Uhh! What's that then, Oh! new project.
Re: 3 out of 4 motors spinning.
« Reply #2 on: August 11, 2017, 10:33:45 »
From your description the problem stays with the ESC on arm 1 when you swap motors.

So motors are ok.

I';d say you have a duff ESC. looks like it can';t detect the BEMF to get the motor spinning correctly.

Maybe a badly soldered resistor or capacitor.

Take the ESC off and check all the components under a magnifying glass, look for shorts and bad soldering.

Which ESC is it. Cheap unbranded ones are more likely to be shoddily made.
Wasdale X, Ow that hurt

Offline Dippi

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 302
  • Liked: 14
  • Country: fi
  • S500 - Naza M Lite - Next build using 3510 360kv
Re: 3 out of 4 motors spinning.
« Reply #3 on: August 11, 2017, 11:04:55 »
From your description the problem stays with the ESC on arm 1 when you swap motors.

So motors are ok.

I';d say you have a duff ESC. looks like it can';t detect the BEMF to get the motor spinning correctly.

Maybe a badly soldered resistor or capacitor.

Take the ESC off and check all the components under a magnifying glass, look for shorts and bad soldering.

Which ESC is it. Cheap unbranded ones are more likely to be shoddily made.

Yes you are absolutely right, i have these basic esc which i have been using on my quad, and needed to replace a few so ordered the same ones, which is a mistake. seems they are dud, as i changed to other ones and all are fine, so a bad batch.

Thank you so much for taking time to respond to this stupid post:

I have also some little bee S spring 30a esc but have to find out how to use them, and configure them.

Also need to find out how to flash underhanded esc to Blheli, the card and usb linker method don';t work, but i was reading there are a few other methods by soldering a wire on the esc straight, i wish i could find the right link to do that.

Offline atomiclama

  • Trade Count: (3)
  • Hero Member
  • *****
  • Posts: 2461
  • Liked: 780
  • Country: gb
  • Uhh! What's that then, Oh! new project.
Re: 3 out of 4 motors spinning.
« Reply #4 on: August 11, 2017, 11:32:57 »
Also need to find out how to flash underhanded esc to Blheli, the card and usb linker method don';t work, but i was reading there are a few other methods by soldering a wire on the esc straight, i wish i could find the right link to do that.

Download and extract blhelisuite
https://blhelisuite.wordpress.com/

go into the manuals directory and check through the "supported" .pdf to see if you esc is supported. If you can';t find them in the document, chuck them in the bin.

If you need to direct programme the ESC then checkout the "programming adapters".pdf file

Sit back get yourself a coffee or 2 or 3 and start reading.

Be warned it';s not easy for a beginner.

I value my time more than getting old stuff working, I';d just bin the old stuff and get some decent new ESC.
Unless you are doing this for the fun then go for it.  ::)

Wasdale X, Ow that hurt

Offline Dippi

  • Trade Count: (0)
  • Sr. Member
  • ****
  • Posts: 302
  • Liked: 14
  • Country: fi
  • S500 - Naza M Lite - Next build using 3510 360kv
Re: 3 out of 4 motors spinning.
« Reply #5 on: August 11, 2017, 11:39:33 »
Download and extract blhelisuite
https://blhelisuite.wordpress.com/

go into the manuals directory and check through the "supported" .pdf to see if you esc is supported. If you can';t find them in the document, chuck them in the bin.

If you need to direct programme the ESC then checkout the "programming adapters".pdf file

Sit back get yourself a coffee or 2 or 3 and start reading.

Be warned it';s not easy for a beginner.

I value my time more than getting old stuff working, I';d just bin the old stuff and get some decent new ESC.
Unless you are doing this for the fun then go for it.  ::)

What is your take on Blheli ---- littlebee S spring 30a or is there something else you would recommend



Sent from my iPhone using Tapatalk

Offline atomiclama

  • Trade Count: (3)
  • Hero Member
  • *****
  • Posts: 2461
  • Liked: 780
  • Country: gb
  • Uhh! What's that then, Oh! new project.
Re: 3 out of 4 motors spinning.
« Reply #6 on: August 11, 2017, 12:11:51 »
BlHeli_S and LittleBee are both good.

You have them so give them ago and see what you think.
Wasdale X, Ow that hurt