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Gaza07:
23 Aug 2019 19:26:42
I agree it does look a lot better for some reasom SMF shorten any recent posts display  :rolleyes:
Andy7:
23 Aug 2019 10:29:15
Nice! Looks loads better.  :beer2:
Gaza07:
22 Aug 2019 22:47:32
Sorted mate  ~~
Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
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Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
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Printing 3d Forum

30amp ESC or 40amp for my tarot quad

Started by nickyb, Thursday,October 03, 2013, 09:33:09

Previous topic - Next topic

nickyb

Hi there,

I';m a bit confused on what rating ESC I should buy for my tarot t-650 quad?

The motors will be DYS BE3608-11 (630KV) motors. Many people sale a 30amp ESC (Simon K firmware of course) would be okay, however some say a 40amp would be better.

Please can you advise on putting my mind at rest please,

Many thanks,

Nick



e.chipev

Quote from: nickyb on Thursday,October 03, 2013, 09:33:09
Hi there,

I';m a bit confused on what rating ESC I should buy for my tarot t-650 quad?

The motors will be DYS BE3608-11 (630KV) motors. Many people sale a 30amp ESC (Simon K firmware of course) would be okay, however some say a 40amp would be better.

Please can you advise on putting my mind at rest please,

Many thanks,

Nick


Hi Nick,
These motors are rated at 32A max..
I would say 40A esc definitely.. but they will work/hover with 30A esc as well.

Item no.: BE3608-11
RPM/KV: 630KV
Max Watt(W): 700
Max Current: 32.1A
Shaft:  4.0
Weight: 83g
Rec Prop: 1047(APC) / 1238(APC) / 1365( CF prop) / 1447(CF prop )/ 1503(CF prop)
Lip Cells: 3-6

Regards

Evgeni

DarrellW

Quote from: nickyb on Thursday,October 03, 2013, 09:33:09
Hi there,

I';m a bit confused on what rating ESC I should buy for my tarot t-650 quad?

The motors will be DYS BE3608-11 (630KV) motors. Many people sale a 30amp ESC (Simon K firmware of course) would be okay, however some say a 40amp would be better.

Please can you advise on putting my mind at rest please,

Many thanks,

Nick

Nick, if you';re going to run these motors you will need to run 4S minimum and preferably 6S to get the best out of them, remember me telling you about Pancake motors being not all they are made out to be?
See Pic enclosed - shows power outputs related to prop size and cell count. I don';t think you will get anywhere near enough power with the size props you can physically run with the cell count you want.
You might be better off looking at some Sunnysky motors instead.
I think..........I think I am........therefore I am.............I think!

nickyb

Quote from: e.chipev on Thursday,October 03, 2013, 10:07:24
Hi Nick,
These motors are rated at 32A max..
I would say 40A esc definitely.. but they will work/hover with 30A esc as well.

Item no.: BE3608-11
RPM/KV: 630KV
Max Watt(W): 700
Max Current: 32.1A
Shaft:  4.0
Weight: 83g
Rec Prop: 1047(APC) / 1238(APC) / 1365( CF prop) / 1447(CF prop )/ 1503(CF prop)
Lip Cells: 3-6

Regards

Evgeni


Many thanks for the detailed info Evgeni, that helps make my mind up that I need a 40amp ESC!

One final point, someone is doing the basic build and since I want the 40amp ESC they say they will need to be fitted next to the motors, on the end of the arms of the tarot T 650.

Does anyone know if this is a good idea or not? Does the weight need to be centralised?

Thanks

Nick

Calomile

The ESCs weight is pretty negligible, any besides the weight would be counterbalanced on the opposite arm.

One thing to remember when mounting ESCs with that much wire is that you';ll probably need a larger capacitor to compensate for voltage spikes.
I reverse polarities for fun.

nickyb

Quote from: DarrellW on Thursday,October 03, 2013, 12:54:59
Nick, if you';re going to run these motors you will need to run 4S minimum and preferably 6S to get the best out of them, remember me telling you about Pancake motors being not all they are made out to be?
See Pic enclosed - shows power outputs related to prop size and cell count. I don';t think you will get anywhere near enough power with the size props you can physically run with the cell count you want.
You might be better off looking at some Sunnysky motors instead.


Thanks mate. Not being too technical here, are you saying I need a bigger prop for the motor? I will for sure use the 4S battery pack, 40a ESC and the DYS motor, as that';s what the building guy said would be best.

Would it not be able to take off properly then?

Thanks for your detailed help.

Nick

DarrellW

Thursday,October 03, 2013, 17:41:02 #6 Last Edit: Thursday,October 03, 2013, 17:46:37 by DarrellW
I think on 4S you might need something like a 13x6.5 prop to get reasonable performance, that will give you about 340W per motor at full throttle - about 170W at hover, it might be a little bit underpowered if you are loading it up with fpv gear. You may need to try a larger prop but beware of overloading the esc';s, if it doesn';t give you enough lift then you may need a higher cell count.
I think..........I think I am........therefore I am.............I think!

nickyb

Quote from: DarrellW on Thursday,October 03, 2013, 17:41:02
I think on 4S you might need something like a 13x6.5 prop to get reasonable performance, that will give you about 340W per motor at full throttle - about 170W at hover, it might be a little bit underpowered if you are loading it up with fpv gear. You may need to try a larger prop but beware of overloading the esc';s, if it doesn';t give you enough lift then you may need a higher cell count.


Thanks again mate, sound advice

Nick
:notworthy:

DarrellW

I';m running 200W motors on a 450 on 3S with 9x4.7 props - I could probably run 10x4.7 but then I would not have the option of running it on 4S giving me about 280W the transformation is amazing; 3S is good for nice relaxing cruising 4S turns it into a bit of a beast!
I don';t run any flv gear, just pure los - it';s just a different model for me to fly! My all up weight is 960gm including battery pack, so it';s quite light!
I think..........I think I am........therefore I am.............I think!

e.chipev

Quote from: Calomile on Thursday,October 03, 2013, 17:23:33
The ESCs weight is pretty negligible, any besides the weight would be counterbalanced on the opposite arm.

One thing to remember when mounting ESCs with that much wire is that you';ll probably need a larger capacitor to compensate for voltage spikes.


It';s common to use couple smaller/medium capacitors in parallel.
Smaller caps can shed more heat.
You need to twist power cables and keep them close one to each other.
Another thing is adding a choke/ferrous ring on the signal cable very close to the esc.
Check photos
(this is how I have done it..and it works fine for me)


P.S. I had to order large quantity so I have some spare capacitors.. ;)