ak2m4

Awe thanks.  The factory did a cock up so I'm always more than happy to pass on those products at a super knockdown price.  Even offering no questions asked return, just want to give people the option of trying a super tight bore for peanuts. 
 
Next week I'm hopefully going to test out some MRs with 5.5mm long nubs which I think will maximise the bucking.
 
I had all the intentions of upgrading the website but soon realised was going to probably take me 4-6 weeks instead 😀 migrating all the data was a huge pita.
 
Hopefully soon going to be offering £1.50 shipping again on large letter products under £12.50, I'll be trialling it for 6 weeks.  

Just for reference, my SCAR is the old G&G SCAR L, and it has a PTS MIAD grip on it.

I've got an Aster in the gun I am running the brushless motor in. AB is all the way off and to be honest, even on a 7.4v LiPo I'm not seeing any reason to bother with precocking.

My understanding of precocking is that it's just a delay in removing power after the trigger is released.
This won't affect the motor or MOSFET.
 
AB is more problematic, if it's shorting the motor it's possible to damage the motor electronics and no reason to suspect AB even works on a brushless.

I had the same experience this evening; due to the shape of the end of the motor, the grip baseplate needed serious alteration to enable adjustment.  Other than that, I am very impressed so far; it runs quietly and seems efficient.

I will probably mess around with AB and precocking on the Perun tomorrow night to see if I can break the motor,

thanks for the feedback on the grip base plate, I'll add that to the description.  I have more motors but for now I'm holding them back and waiting on more feedback, just in case. 

Just tested the RPM of the test Brushless motor,
 
11.1v Turnigy 15-25C (Battery around 85% full charge)
Fast = 34K
Slow = 30K
 
Only 12% difference give or take with a 11.1v  
 
7.4v Turnigy 15-25C (Battery around 85% full charge)
Fast = 20.5K
Slow = 19K
 
Hardly any difference. 

Full stats coming Monday fingers crossed.  I also got some Perun's in stock so I'll be able to run some full tests with one of those.  

Just tested the RPM of the test Brushless motor,
 
11.1v Turnigy 15-25C (Battery around 85% full charge)
Fast = 34K
Slow = 30K
 
Only 12% difference give or take with a 11.1v  
 
7.4v Turnigy 15-25C (Battery around 85% full charge)
Fast = 20.5K
Slow = 19K
 
Hardly any difference. 

Full stats coming Monday fingers crossed.  I also got some Perun's in stock so I'll be able to run some full tests with one of those.  

My dad kept getting this one particular knob head phone him up and try to scam him. 
I was there one day when the pillock rang so i did a jason bourne on him and asked him for his call in ID. 
when he got confused, i told him that he had contacted a restricted Ministry Of Defence number and i needed his name, the company name and not to hang up as a representative of the MOD would be there to arrest him and his supervisor for breach of the official secrets act. I said it with such authority that the guy hung up and no one ever phoned back. Was worth it just to see my dad crying on the floor with laughter....  
 

Took the plunge and purchased one myself.
Slowly upgrading my ARP9, and I've done everything outside the gearbox apart from the motor.
 
Was looking around at different reviews of brushed, but when I saw the XT Brushless for a good saving compared to other brushless; it's a good chance I'll take.
 
I've done RC in the past, and love the benefits of brushless.
Thanks @ak2m4 for giving such a good discount, granted pre-production.

that's wonderful news.  The flat little boxes are a godsend.  90% of the orders I have can fit into a Large Letter box, this allows me to keep the fee for Tracked 24 to just £3.30 (Royal Mail price rise imminent) plus you don't need to be in when the post arrives.  I could save a buck or 2 by going down the jiffy bag route like most other retailers but nah keep it boxed....

that's wonderful news.  The flat little boxes are a godsend.  90% of the orders I have can fit into a Large Letter box, this allows me to keep the fee for Tracked 24 to just £3.30 (Royal Mail price rise imminent) plus you don't need to be in when the post arrives.  I could save a buck or 2 by going down the jiffy bag route like most other retailers but nah keep it boxed....

that's wonderful news.  The flat little boxes are a godsend.  90% of the orders I have can fit into a Large Letter box, this allows me to keep the fee for Tracked 24 to just £3.30 (Royal Mail price rise imminent) plus you don't need to be in when the post arrives.  I could save a buck or 2 by going down the jiffy bag route like most other retailers but nah keep it boxed....

OK, so having searched on this forum and found countless threads that havent been completed or had some sort of closure on it, i'll end this with my conclusions...
They are not as scary as you make them out to be in your head. The Hype is real but at the end of the day, its just a badass motor. Get the proper thread lock.  download the manual from the website as the BASE motor doesn't come with any. Fit it carefully and like everyone says, "if it just goes click, disconnect it and check it". I left the heatshrink on the motor terminals as I'm a Muppet and i didn't want to reverse polarity kill it. adjust. enjoy. Can honestly say, its a hoot. not the cheapest mod you can do but for pure perverse enjoyment of those small balls travelling, its worth it.
Spent all day skirmishing with the Aug and not once did i regret it. 
If you're on the fence. DO IT. 
 
This has been an AUG public service announcement.  

The CYMA MP5K motor plate fits perfectly...
 
https://i.imgur.com/7ScBKmn.jpg
 
... so that's me off to buy a GATE Titan v3 then and not tell my wife 😬

Currents, 7.4 and 11.1
 
22tpa xt 17 and 25
BL xt.      15.5 and 20.5.
 
Ah I forgot to take precocking off...wondered why auto was so similar to semi if not a little more.
 
The BL is much faster, esp at 7.4v in comparison, but I haven't sorted my feeding issue.
BL motor isn't fitted properly I can tell, I'll have to have look see when I've a bit more time.

It's possible on most, winding counts and magnet a definite yes, position of bearings hmmmm not sure, where are you thinking?

They're a RC motor factory and this is their first venture into Airsoft, my guess is a fair amount of the components they buy from a factory.  At the very least I can ask and they will say yes or no, or that will cost £££ extra.   At the moment they have only just got back from their new year break so still waiting on the full specs.  My overall aim is to have a reliable brushless motor under £80

The motor has to follow the same form factor as existing motors and a single case for long and short motors makes sense, at least for the smaller producers.
 
I don't think there's a case for a reversable motor, unless you can think of a reason why you'd want such a thing.
 
Brushless motors can't be very dumb, they need the controller, the large flat chip, to do the sums to make it turn etc.
You need additional wiring terminals to do anything via the ETU because 1, the ETU expects to deliver only voltage to the motor terminals, and 2, the motor expects to see voltage only to the motor terminals.
You may find the motor controller already brakes the motor to control the back EMF at motor stop.
 
Given the right message the motor can spin any way you want it to but you'd need some sort of interface to achieve it and the controller programming and it needs power.
 
 
 

@ak2m4 Winding count: I don't know how much exactly but I would imagine this is similarly balanced between torque and max RPM, what is the highest winding you can get for a say max 30k RPM? Because it seems to me 30k is high enough even for high ROF builds before you run into problem with other things not catching up
 
Magnets: it seems Chihai is moving towards higher grades with higher temperature ratings which makes sense, so ideally you want highest grade with highest temperature rating, but I imagine this is only limited by cost. What are price differences of say N35/N52/N35H/N45SH/N45UH?
 
Bearings: I think if you have an integrated CNC tower like what Chihai is doing, you can probably copy their three bearing config (like this), I don't imagine more bearings are automatically better and I think the three bearing might already be optimal
 
Electronics/firmware: for airsoft it might actually be better to have a "dumb" motor that only has basic current limit, because of mosfet compatibility, I think the trend of putting more features into the motors might not be sustainable because there are only more and more ETUs in airsoft
 
The bells and whistles would only make sense if people are using brushless without mosfet, but more often than not that is not the case
 
To be "dumb" I mean
 
1. it needs to pass some current at rest so it is visible to the mosfet when plugged in (not sure about this)
2. work with lower range voltages because of voltage sag in airsoft batteries
3. able to work with reverse polarity
4. able to work with PWM input
5. able to work with 3+4
6. no startup delay, not sure how to achieve this, you want to keep the controller powered at rest so it doesn't need time to wake up, maybe with a capacitor as suggested
7. I don't really see the use case for speed control, if it is not using the maximum speed the magnet and winding can output maybe it has room to put in more winding for more torque, and if you have different speed models you can individually tweak this, and probably sell more (like Warhead), and arguably speed control should be something done at ETU level, the motor should be dumb and just let ETU do its job, the motor should just be responsible for spinning and IMO the electronic should mimic the behaviour of a brushed motor as much as possible

As a motor, the brushless is 1mm shorter, compared to the xt brushed, from the motor front to the pinion end, the motor tower has no play in it. Altho I would suggest this dimension could be adjusted as the shaft was probably a bit longer originally.
The motor appears to have strong magnets, and the stepping between them very apparent when you rotate the motor.
Motor tabs are strong.
I notice the tabs are nearer the motor ends, which caused me no issues but may in different grips at the end. There is room to bend the tabs through 90degrees which is an option you don't see usually. Don't bend the tabs lol.
I'm really happy with this motor so thank you xt.
This weekend I'll run this and the xt brushed through the ammeter and see what that reveals.

I fitted mine to test and it functions just as the brushed motor does.
I have a perun.
Motor height was different and it needed to be screwed in further.
It fit without issue
I think perhaps I'll look at bevel height as I've got motor tower play which I removed on the brushed motor. Or shim the tower to fit the hole in the gearbox casing.
I haven't fired any bbs through it yet but it fires normally on 7.4 and 11.1 lipo, a 7.4 lion and a 9.9 life.

@Fatboy40 hey mate, I've seen on a few other video's that with certain grips you have trim a little of the motor plate.  I completely forgot about this so will add a mention on the description.

What battery are you using with the Double Eagle?  It's it's 7.2v maybe try a 11.1v 

If you don't have any joy with it just message me and we'll sort out a return on it.  I'm offering all people who are in test this option.

thanks man, I've been tested each one before I send out and I think they work so well due to the higher polishing that I paid extra for the factory to do.  I want to do some more video's on them but it's always windy or raining so might have to wait till the spring.
 
I've now got 6.01mm on the website, they're about 20% more expensive but seem to offer the same performance.
 
I had to drop ZCI inner barrels, I was getting so many reports of BB residue build up that I wasn't confident with them anymore, plus on a couple of inspections I found some shocking flaws.  I've made a video and will upload it in the coming weeks but it's an eye opener.

then after someone breaks it send it to Stevfix 🙂

thanks man, I've been tested each one before I send out and I think they work so well due to the higher polishing that I paid extra for the factory to do.  I want to do some more video's on them but it's always windy or raining so might have to wait till the spring.
 
I've now got 6.01mm on the website, they're about 20% more expensive but seem to offer the same performance.
 
I had to drop ZCI inner barrels, I was getting so many reports of BB residue build up that I wasn't confident with them anymore, plus on a couple of inspections I found some shocking flaws.  I've made a video and will upload it in the coming weeks but it's an eye opener.