Motor issue; motor DOA or x-asr is shit?

[Alfie_0]

Evening all,

First time doing any tech work and have installed a new Solink 28k lite plus brushless motor and 13:1 gears into my specna edge.

The old motor, when tested, works fine, spins freely even by hand etc.

The new motor shows a solid red light on the x-asr mosfet and does not spin, will not spin freely by hand either, has a sort of regular interval clunk/click as you turn it. Not sure if that is normal or not.

Have seen one post from a guy on reddit  (https://www.reddit.com/r/airsoft/comments/nt5kt2/issue_motor_is_causing_a_supposed_short_circuit/)  who seems to have a similar if not identical issue, which turnt out to be his mosfet, but of course that's only a single person on the internet so not taking it as gospel.

Motor was recieved today brand new in box, with testing the old motor in same environment, those are the only two reasons I've found, either the motor is wankered or x-asr is being an arse

Have linked youtube vids and a pic of the x-asr troubleshooting card for reference, not sure why one uploaded as a short sorry.

https://youtu.be/Lft10NbVFYI

https://youtube.com/shorts/EtoJwS5-LJg?feature=share Any advice much appreciated

TIA,

Alfie

View attachment 154483

 

[Lozart]

The old motor, when tested, works fine, spins freely even by hand etc.

The new motor shows a solid red light on the x-asr mosfet and does not spin, will not spin freely by hand either, has a sort of regular interval clunk/click as you turn it. Not sure if that is normal or not.

How freely a motor spins is directly related to the strength of the magnets used to make it. If it spins freely then the magnets are weak and the motor will be shit. Ergo the Solink feeling clunky as it turns is, in fact, a sign of a better motor. Having changed the motors in a couple of Specna guns I can attest that they are, in fact, weak as shit.

Also, the X-ASR MOSFET is rubbish.

I also very much doubt the X-ASR can deal with a brushless motor. Fuck it off and put a decent unit in instead.

 

[Alfie_0]

Also, the X-ASR MOSFET is rubbish.

I also very much doubt the X-ASR can deal with a brushless motor. Fuck it off and put a decent unit in instead.

Cheers for the advice mate,

will order a warfet and try throw that in, the x-asr has motor + and - as well as a blue wire from the trigger contact, all housed in the buffer tube. In theory I can just cut off the x-asr and put the warfet in its place no? Wiring seems to be the same?

 

[Lozart]

Cheers for the advice mate,

will order a warfet and try throw that in, the x-asr has motor + and - as well as a blue wire from the trigger contact, all housed in the buffer tube. In theory I can just cut off the x-asr and put the warfet in its place no? Wiring seems to be the same?

Personally, I'd skip the Warfet and go straight to an Aster. That said, I believe you can do what you are suggesting.

The Aster choice is more based on the modern mosfets being better able to handle brushless motors than the older ones like the Warfet.

 

[Alfie_0]

Personally, I'd skip the Warfet and go straight to an Aster. That said, I believe you can do what you are suggesting.

The Aster choice is more based on the modern mosfets being better able to handle brushless motors than the older ones like the Warfet.

Yeah, after some research went for the Aster II with the Bluetooth

starting to think maybe I should have just left my aeg alone… lol

 

[Alfie_0]

Personally, I'd skip the Warfet and go straight to an Aster. That said, I believe you can do what you are suggesting.

The Aster choice is more based on the modern mosfets being better able to handle brushless motors than the older ones like the Warfet.

https://youtube.com/shorts/-7cqHl5aJo4

Aster II has done the trick !

Appreciate your help mate, much appreciated.

Side note; how does my shimming sound? first time shimming

 

[Colin Allen]

https://youtube.com/shorts/-7cqHl5aJo4

Aster II has done the trick !

Appreciate your help mate, much appreciated.

Side note; how does my shimming sound? first time shimming

It is always hard to tell with phone videos as they tend to over-emphasise the higher frequencies, often making gearboxes sound worse than they actually are.

However, while that is decent, it does sound as if it could do with a bit of improvement.  Are you certain that the motor height is properly adjusted?  If it is, then what you do next is rather dependent on how much time and effort you want to put into it.  

Is the motor heating up?  A brushless motor shouldn't really get hot and neither should the wiring.  If they are, the shimming is probably too tight.

Also bear in mind that some pinion gear/bevel gear combinations are noisier than others and some gearsets are noisier than others.  How the motor sits in the pistol grip and the shape of the pistol grip can also have an impact.  I have a beautifully shimmed gun that, with a standard Magpul M4 grip on it, is very quiet; with its actual grip, it is a tad noisy because it holds the motor at an awkward angle.

 

[Lozart]

https://youtube.com/shorts/-7cqHl5aJo4

Aster II has done the trick !

Appreciate your help mate, much appreciated.

Side note; how does my shimming sound? first time shimming

(fellow Corsair desk mat enjoyer spotted)

It sounds OK, but as above, the phone audio doesn't really do many favours. 

Also - WTF is going on with your selector?

 

[Colin Allen]

Also - WTF is going on with your selector?

It needs Viagra.

 

[Alfie_0]

It needs Viagra.

In my infinite wisdom, I didn’t decide to check what was wrong with it until I had already put it back together, screw just needs tightening.

but I can’t be bothered

 

[Lozart]

screw just needs tightening.

but I can’t be bothered

Story of my life.

 

[Alfie_0]

I’ll have a look at adjusting motor height, binned the garbage specna grip so adjusting it is easy enough now