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Old 05-31-2018, 07:57 PM   #281
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Default Re: Hobbywing Xerun AXE

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Originally Posted by JohnRobHolmes View Post
Hell, I have one in hand and I'm still on the fence on how to judge it, lol!
At least you're giving it a fair chance!
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Old 05-31-2018, 07:59 PM   #282
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Default Re: Hobbywing Xerun AXE

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You are rushing to judgement. Have you driven it yet? I'd say you're the one biased.

I wasn't lied to. It's marketing. Marketing tells white lies all the time. I don't care if this system is FOC, BEC, etc. I care if it works.

I have lots of high end and low end systems. Not all are great, but some are. Are all worth the money? Nope. That goes for systems at any price.

This is not buyers remorse here. I'm anxiously awaiting the system.
I guess you could say I AM biased. I am biased against companies that play this marketing "white lies" games. There are more than enough companies out there that DONT. So I choose to give my business to honest companies rather than just assume and accept everyone is lying and thus it is ok. Im usually a very pessimistic person, but not everyone in the world is terrible!
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Old 06-01-2018, 08:28 PM   #283
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Default Re: Hobbywing Xerun AXE

One thing I have thought of is anyone that might want to run a sound kit is not going to have as much modulation to the sound ie unless you need more wheelspeed to clear an obstacle
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Old 06-01-2018, 08:51 PM   #284
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I've done as much research and testing as I can, and can't really determine if it is FOC or not, so I shall trust that they are advertising it as such and can take it at face value. I have a full review and test video uploading right now, should be up in a half hour.

My takeaway for now- the system isn't for me. The FOC and encoder are not delivering the driving feel and startup accuracy delivered from other brushless systems today. The torque delivery is not controllable by the driver. The punch is very poor, the system spins up rather slow in the most aggressive settings. The system will only work with their motors, so there really is no changing what you get. For my needs, it simply does not meet. Other people might like the way it drives, but the main issue for me is the lack of torque control. Just made me feel that any hard sections were putting the rig at risk without my consent.


I would not recommend this for any competition setting.
I would recommend this for a person filming scale stuff and wanting even vehicle speed with no audible noise and the least driving effort.
I would recommend this for a newbie-- with the caveat that the throttle will not convert to learning throttle control for another system. It felt like a crutch in some ways.
I would not recommend this for a newbie because it is far more likely to destroy drivelines without the drivers consent. Not knowing the limits of rigs combined with no torque modulation could be a bad move.


I'm on the fence for an overall thumbs up or thumbs down to other drivers. Its a yes/ no situation. For myself, it's a no. Maybe they can improve the startup. The velocity loop excludes torque control , though. And that I simply cannot get past.
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Old 06-01-2018, 09:18 PM   #285
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Default Re: Hobbywing Xerun AXE

It's a long one. A lot to say and cover.

https://youtu.be/QxIobffjAw0

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Old 06-01-2018, 09:52 PM   #286
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Default Re: Hobbywing Xerun AXE

The Krull controller setup is sweet!
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Old 06-01-2018, 10:06 PM   #287
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Default Re: Hobbywing Xerun AXE

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It's a long one. A lot to say and cover.

https://youtu.be/QxIobffjAw0

Was just gonna say the vid was done uploading ^^
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Old 06-01-2018, 10:16 PM   #288
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Default Re: Hobbywing Xerun AXE

Good video. Long watch but it was good to see how the systems compared on the rocks. I'd really like to hear what the sw4+revolver minimum RPM is. Based on the minimum speed on the rocks, I'm guessing 60-75 RPM.

Your controller setup reminded me of this:
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Old 06-01-2018, 10:20 PM   #289
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Default Re: Hobbywing Xerun AXE

The revolver loads down very nicely in regards to startup finesse. It might not be so slow on the bench unloaded, but on the rocks it still amazes me that it is sensorless.
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Old 06-01-2018, 10:52 PM   #290
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Default Re: Hobbywing Xerun AXE

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It's a long one. A lot to say and cover.
45 minutes? Dang! Time to get some popcorn and watch!
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Old 06-01-2018, 11:00 PM   #291
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Default Re: Hobbywing Xerun AXE

That was an exhaustive review. Nicely done!

After viewing it I think the only future motor/ESC config I may need to try out in addition to what I already have is a HH Trailmaster BLE Pro and a Stubby PP...

(for night-time stealth runs in a dedicated 1.9" rig... )
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Old 06-01-2018, 11:23 PM   #292
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Default Re: Hobbywing Xerun AXE

What will be really interesting is if the system can be tuned or updated via software for better performance. How much more room is there for optimization/improvements with that given hardware?
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Old 06-01-2018, 11:30 PM   #293
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Default Re: Hobbywing Xerun AXE

I think it will stay a niche esc for pure crawlers doing slow-mo videos.

Most rigs are built to at least trail so the danger of binding up the wheels and blowing the drivetrain is just off putting.

Then you factor in the price, unique motors and you might as well go for a Mamba X with it's AUX wire and versatility.

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Old 06-01-2018, 11:42 PM   #294
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Default Re: Hobbywing Xerun AXE

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I think it will stay a niche esc for pure crawlers doing slow-mo videos.

Most rigs are built to at least trail so the danger of binding up the wheels and blowing the drivetrain is just off putting.

Then you factor in the price, unique motors and you might as well go for a Mamba X with it's AUX wire and versatility.

Sent from my Nexus 6 using Tapatalk
I'm not an EE or versed in this kind of stuff, but can that velocity loop behavior be toggled on/off on the fly?

It would be cool if this worked like car tuning where you have different "mappings" for different modes of driving with the ability to switch between those "mappings" on the fly. If it doesn't have an aux wire for you to switch via channels on the controller, then it would be cool if they utilized the built-in bluetooth to toggle it via an app or bluetooth switcher.
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Old 06-02-2018, 12:22 AM   #295
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Default Re: Hobbywing Xerun AXE

I made this, i don't know about y'all, but every time i read this and see the AXE part.... Well .....

LOL
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Old 06-02-2018, 12:37 AM   #296
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Default Re: Hobbywing Xerun AXE

Anyone seen the official video
https://youtu.be/txf4dVIZjvo

Another video on it..
https://youtu.be/bSEBI6QuZxE
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Old 06-02-2018, 06:48 AM   #297
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Default Re: Hobbywing Xerun AXE

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What will be really interesting is if the system can be tuned or updated via software for better performance. How much more room is there for optimization/improvements with that given hardware?

This would be the big question that only hobbywing can answer. Maybe a firmware update could make the startup resolution better. Or maybe they are already at the limits of phase shifting. The granularity of the encoder can deliver the resolution. They are effectively starting the motor around 1.5% duty, and maybe this is needed to get a solid RPM lock. The startup isn’t too bad by most measures, but it’s literally half a decade behind existing brushless products and nowhere near brushed.
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Old 06-02-2018, 08:09 AM   #298
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Default Re: Hobbywing Xerun AXE

I think I figured out the best use for this esc combo! Somewhere on rccrawler there was a post about making and/or selling scx10(?) chassis with camera to building inspectors. This would be perfect for them!
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Old 06-02-2018, 09:13 AM   #299
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Default Re: Hobbywing Xerun AXE

Guess my first gut reaction is right.


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Old 06-02-2018, 09:20 AM   #300
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Default Re: Hobbywing Xerun AXE

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I think I figured out the best use for this esc combo! Somewhere on rccrawler there was a post about making and/or selling scx10(?) chassis with camera to building inspectors. This would be perfect for them!
Depends on how likely getting stuck is. Without having torque control, any sticky situation could result in a broken down and difficult to retrieve rig. On a camera rig, it would be very difficult to assess the load without audible or speed feedback, even more difficult than standing next to the rig. For these reasons, I would not put this system on an inspection vehicle of my own. Therefore, I would have a very hard time honestly recommending it to others.
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