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View Poll Results: Which ESC do you prefer?
Turnigy Plush 28 80.00%
Castle Creation with multicopter firmware 1 2.86%
Hobbywing FlyFun 1 2.86%
Hobbyking SS 2 5.71%
Other 3 8.57%
Multiple Choice Poll. Voters: 35. You may not vote on this poll

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Old Jul 13, 2012, 04:57 PM
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Turnigy Plush vs SimonK ?

Hi guys,
I would like to have some opinions from you about what ESC to use.

I now use Turnigy Plush 12A for my Naza Y6 and they work ok.
Now, will SimonK flashed 12A work much better - i.e is it worth it to buy these?

It seems to me that there are several different 12A ESC to buy but which ones has the highest quality and where can I buy them?

Lot of questions here but I hope it attracts the interest of many people.

/Tritan
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Old Feb 05, 2013, 03:01 AM
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somebody?
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Old Feb 05, 2013, 02:25 PM
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Best ESC's have an external oscillator and are all N-FET.

At that size though there aren't a whole lot that have those, especialy if you want SimonK.

The only one I can see is the HK BlueSeries 12A

If you want to know which can be flashed they are all listed here

https://docs.google.com/spreadsheet/...BQkZZRlE#gid=0
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Old Feb 05, 2013, 02:37 PM
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I'm replying to get subscribed as much as anything.

But, I also use Plush 18A at the moment. I just flashed a set of them with BL Heli (and yes it is for quads also) but I have not flown with them yet. I will let you know how they do, when I fly.

I also have some SimonKs (pre-flashed) that I have not tried, but I'm hoping the BL Helis do well (cheaper, actually pretty easy to flash with an Arduino).

My understanding is the external oscillator is not so important if you do some sort of coordinated calibration on the ESCs - eg all at once. Is there some other reason for an external oscillator?
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Old Feb 05, 2013, 02:46 PM
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To answer my own question in post 1 more than 6 month ago:

the best are simply ZTW with simonk - ZTW manufacture a lot for different brands but are actually OEM. I cant find anything on the market ATM which would be better: they have external oscillator, N-FET, high quality, good price etc etc.

I have used 12A, 25A and 35A, zero problems, works super.
I would never go back to plush again or non simonk.
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Old Feb 05, 2013, 02:58 PM
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Now i use 30A Plush's with my quadrocopter (rabbit fc) and
build my hexa with plushs. My quad is very stable, i can do nice aerial videos.
How can here help esc-s with simonk fw? Can somebody link a flying video with and without simonized esc? thx
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Old Feb 05, 2013, 03:34 PM
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Quote:
Originally Posted by spiked3 View Post
I'm replying to get subscribed as much as anything.

But, I also use Plush 18A at the moment. I just flashed a set of them with BL Heli (and yes it is for quads also) but I have not flown with them yet. I will let you know how they do, when I fly.

I also have some SimonKs (pre-flashed) that I have not tried, but I'm hoping the BL Helis do well (cheaper, actually pretty easy to flash with an Arduino).

My understanding is the external oscillator is not so important if you do some sort of coordinated calibration on the ESCs - eg all at once. Is there some other reason for an external oscillator?
The reason for the external oscillator is that even when calibrated, the internal oscillator will drift with temperature, and each ESC will drift differently, thereby running each ESC at a slightly different clock rate. An external clock doesn't have that problem
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Old Feb 07, 2013, 12:49 AM
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Quote:
Originally Posted by vili View Post
Now i use 30A Plush's with my quadrocopter (rabbit fc) and
build my hexa with plushs. My quad is very stable, i can do nice aerial videos.
How can here help esc-s with simonk fw? Can somebody link a flying video with and without simonized esc? thx
From my experience you probably won't notice much difference in performance if your MTM distance is 800mm and above. Less than that its better to go for the flashed ones.
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Old Feb 07, 2013, 01:24 AM
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Mine is around 600mm
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Old Feb 07, 2013, 01:56 AM
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Quote:
Originally Posted by WendoNZ View Post
The reason for the external oscillator is that even when calibrated, the internal oscillator will drift with temperature, and each ESC will drift differently, thereby running each ESC at a slightly different clock rate. An external clock doesn't have that problem
Yes, but in the PID loop isn't motor control based on what change is needed, and not some absolute PWM number?
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Old Feb 07, 2013, 01:58 AM
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If the MCU's are running at different speeds though the updates to the motors are at different speeds, so from the FC's point of view some motors respond faster than others
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Old Feb 07, 2013, 02:15 AM
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The motors are mechanical.

1) I'm not convinced an internal oscillator would vary by much, what maybe the difference between 400, and 410 times per second? 2) I doubt that a mechanical motors response would be accurate enough to care and 3) The speed at which the FC sends commands to the motor does not change. It doesn't send a command to a motor and wait, it has it's own oscillator, and loops all 4 motors (or however many), every time.

I can buy the hysteresis arguments for flashed code, although I do not understand why vendors do not just write it that way to begin with. But I would like to see something more concrete on the external oscillators advantages.
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Old Feb 07, 2013, 01:05 PM
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Well simonk has noticed issues with external oscillators and I'm willing to take his word for it

People also report needing to re-calibrate upon large temp changes with internal oscillators
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Old Feb 07, 2013, 05:02 PM
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Does turnigy plush 18a have external oscilliator and nfets?
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