MXUS 3000 Hub Motor - V1 V2 V3

Get all your technical information about electric bikes here.
Post Reply
User avatar
Drunkskunk   100 GW

100 GW
Posts: 7167
Joined: Apr 14 2007 11:37am
Location: Dallas, Texas. U.S.A.

Re: MXUS 3000 - Cromotor Mini

Post by Drunkskunk » Sep 13 2014 11:44am

1KM per volt sounds interesting. That would give me roughly 10mph over my Monster's current motor, and knock 20lbs off the unsprung weight.
Buy the ticket, take the ride.
Monster Bike:http://endless-sphere.com/forums/viewto ... =6&t=38667

stevc   10 W

10 W
Posts: 67
Joined: Mar 12 2013 10:03am
Location: Orange N.S.W.

Re: MXUS 3000 - Cromotor Mini

Post by stevc » Sep 15 2014 12:22am

Found some more , hope the link works (translated).

http://translate.google.com.au/translat ... 6bih%3D891

User avatar
mlt34   100 kW

100 kW
Posts: 1244
Joined: Jan 19 2011 12:23pm
Location: Boston
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by mlt34 » Sep 15 2014 12:42am

stevc wrote:Found some more , hope the link works (translated).

http://translate.google.com.au/translat ... 6bih%3D891
Am I the only one tickled by the idea that there are communities out there just like us but in different languages? It's like a bizarro world for ebikes...
Are you planning your first electric bicycle conversion? I wrote a book that teaches beginners everything they need to know about building their own ebike.
Then I wrote the book (literally) on building custom lithium batteries.
I also write for EbikeSchool.com, a site that does mainly how-to style articles and other informational write-ups. Check out our youtube channel for great how-to battery building videos.
Lastly, I run www.Vruzend.com, which sells solderless 18650 battery kits, 18650 cells, li-ion chargers, BMSs and more!

User avatar
spinningmagnets   100 GW

100 GW
Posts: 11399
Joined: Dec 21 2007 10:27pm
Location: Ft Riley, NE Kansas

Re: MXUS 3000 - Cromotor Mini

Post by spinningmagnets » Sep 15 2014 12:47am

I don't know if this was posted yet (I looked and didn't find), the Russian forum posted that the laminations were 0.50mm thick, and the phase wires were 13AWG 2.6mm (squared)
140-146mm dropouts?...I find it hard to believe the manufacturer wouldn't know the tolerance to within 6mm!
I believe these specs "might" refer to the available axle-shoulder drop-out widths range that is available. For example, the stock Cromotor has a 150mm D.O. width, but zombiess ordered a large batch with 145mm D.O. width. If you are buying a pallet full of them, there might be some customization that is available.

User avatar
molybdenum   1 kW

1 kW
Posts: 301
Joined: Feb 20 2014 11:09am
Location: Burnaby, BC, Canada

Re: MXUS 3000 - Cromotor Mini

Post by molybdenum » Sep 15 2014 1:12pm

spinningmagnets wrote:I don't know if this was posted yet (I looked and didn't find), the Russian forum posted that the laminations were 0.50mm thick, and the phase wires were 13AWG 2.6mm (squared)
140-146mm dropouts?...I find it hard to believe the manufacturer wouldn't know the tolerance to within 6mm!
I believe these specs "might" refer to the available axle-shoulder drop-out widths range that is available. For example, the stock Cromotor has a 150mm D.O. width, but zombiess ordered a large batch with 145mm D.O. width. If you are buying a pallet full of them, there might be some customization that is available.
You may be right but this begs the question of why a motor which e4bike clearly states was designed for 135mm dropouts is being manufactured between 141mm and 146mm.

So far, the specs on the new version look awesome and with a good quality axle, should blow away the clyte series in terms of quality and performance. Perhaps the manufacturing for 135mm dropouts is more difficult? For this motor to appeal to the vast majority of ebike enthusiasts, it must fit into a standard bicycle. It would be best to determine the axle metal quality and get assurances from the factory that they will have 135mm axles prior to ordering.
Last edited by molybdenum on Sep 15 2014 7:47pm, edited 1 time in total.
2012 Kona Dew Deluxe, Q128C and 9spd cassette, S12S sinewave controller, 48V Panasonic battery

User avatar
Samd   1.21 GW

1.21 GW
Posts: 3667
Joined: Jun 28 2011 11:08pm
Location: Ballarat, AU
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by Samd » Sep 18 2014 8:22pm

Ebikebert wrote: I dont understand the rush.
I'm not feeling the need to wait. Because the lamination change prevents a large portion of heat generation in the first place.

If this motor in the very first post of this thread does 110 kph in that youtube video, I don't need to wait for a cast Ally stator and miss our impending Aussie summer. I'm sure the thermistor will tell me what I need to know.
stator1web.jpg
stator1web.jpg (224.09 KiB) Viewed 763 times
stator2web.jpg
If a clyte 4065 handles a stamped stator, its more than ok enough for me.
http://ballaratebikes.com/

ImageImageImage
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

User avatar
teklektik   10 GW

10 GW
Posts: 4020
Joined: Mar 26 2011 1:15pm
Location: CT, USA

Re: MXUS 3000 - Cromotor Mini

Post by teklektik » Sep 18 2014 9:55pm

Ya - the impending summer down under is a real game-changer - I would likely do the same in that situation...
Timing is everything. :D
Visit Grin Technologies at www.ebikes.ca
Build Thread: 2WD Yuba Mundo V4

User avatar
Ebikebert   100 W

100 W
Posts: 210
Joined: Nov 12 2012 2:45pm
Location: Saint Cloud Fl

Re: MXUS 3000 - Cromotor Mini

Post by Ebikebert » Sep 18 2014 10:17pm

Samd wrote:
Ebikebert wrote: I dont understand the rush.
I'm not feeling the need to wait. Because the lamination change prevents a large portion of heat generation in the first place.

If this motor in the very first post of this thread does 110 kph in that youtube video, I don't need to wait for a cast Ally stator and miss our impending Aussie summer. I'm sure the thermistor will tell me what I need to know.
stator1web.jpg
stator2web.jpg
If a clyte 4065 handles a stamped stator, its more than ok enough for me.

Good point, I respect your position. Definantly enjoy your summer. :) I Just dont understand if you have the ability to wait is what i meant.

User avatar
teslanv   100 MW

100 MW
Posts: 2675
Joined: Nov 03 2013 8:42pm
Location: Bellevue, WA - USA
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by teslanv » Sep 18 2014 10:55pm

So here's my opinion on the waiting for the "next best thing" :
I used to geek out over the newest smart phones, always wanting whatever was rumored to be the next flagship of whatever company, and how cool of a processor it would have and what kind of video and high-resolution pictures it could take, and on and on, never satisfied with the phone I had, even though it was perfectly capable and useful for what I needed it to do. I would watch the tech websites for months reading about this rumor or that leak, and get my hopes up.
And then Apple released the iPhone 4 "S", and the only G-ddamn improvement was that the phone talked back to you. so I said "F-ck it. This is stupid." :x
DD Hubs, Batteries, Controllers & Custom Ebikes.
http://westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

User avatar
Samd   1.21 GW

1.21 GW
Posts: 3667
Joined: Jun 28 2011 11:08pm
Location: Ballarat, AU
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by Samd » Sep 18 2014 11:50pm

I'm looking at the bolt on flat plates on both sides and thinking some laser cut replacements.

Maybe even a countoured heatsink plate for the stator.
http://ballaratebikes.com/

ImageImageImage
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

User avatar
mlt34   100 kW

100 kW
Posts: 1244
Joined: Jan 19 2011 12:23pm
Location: Boston
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by mlt34 » Sep 19 2014 6:47am

Relanium wrote: Well for me it's because I want to start my first ever ebike build, you know how exciting that is :)
Man, that's going to be quite a first ebike :D
Are you planning your first electric bicycle conversion? I wrote a book that teaches beginners everything they need to know about building their own ebike.
Then I wrote the book (literally) on building custom lithium batteries.
I also write for EbikeSchool.com, a site that does mainly how-to style articles and other informational write-ups. Check out our youtube channel for great how-to battery building videos.
Lastly, I run www.Vruzend.com, which sells solderless 18650 battery kits, 18650 cells, li-ion chargers, BMSs and more!

User avatar
teslanv   100 MW

100 MW
Posts: 2675
Joined: Nov 03 2013 8:42pm
Location: Bellevue, WA - USA
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by teslanv » Sep 19 2014 7:21am

Or just get a Cromotor??? Aren't they made in Croatia?
DD Hubs, Batteries, Controllers & Custom Ebikes.
http://westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

User avatar
Relanium   10 W

10 W
Posts: 95
Joined: Nov 25 2012 12:38pm
Location: Slovenia, EU

Re: MXUS 3000 - Cromotor Mini

Post by Relanium » Sep 19 2014 7:29am

Yes, quite close to me, but I think it's overkill for my project.

User avatar
efMX Trials Electric Freeride   1 MW

1 MW
Posts: 1504
Joined: Feb 15 2013 4:43pm

Re: MXUS 3000 - Cromotor Mini

Post by efMX Trials Electric Freeride » Sep 19 2014 11:19am

Cromotor is not Made in Croatia..
it is designed and Assembled in Croatia from Chinese made/ sourced components..
http://endless-sphere.com/forums/viewto ... 26#p858253
teslanv wrote:Or just get a Cromotor??? Aren't they made in Croatia?
some ride & sk8 videos:
metacafe.com/channels/NATAS666DAMIEN
http://www.youtube.com/natas666damien
i have nothing for sale.. :)

User avatar
teslanv   100 MW

100 MW
Posts: 2675
Joined: Nov 03 2013 8:42pm
Location: Bellevue, WA - USA
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by teslanv » Sep 19 2014 11:23am

Kinda like how a Toyota or a Boeing 787 can be "Made in America"? :wink:

My point being that is would technically be "Shipped from Croatia" and thus not have to pay (as much?) import fees to the EU?
DD Hubs, Batteries, Controllers & Custom Ebikes.
http://westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

sacko   10 kW

10 kW
Posts: 826
Joined: Jul 04 2012 2:15am
Location: Kent, United Kingdom

Re: MXUS 3000 - Cromotor Mini

Post by sacko » Sep 20 2014 4:10am

The wires are my only concern, but I am sure I can mod them myself.

Comparing the wind to a Crystalyte, is this closer to a 4080 than a 4065?

leffex   100 W

100 W
Posts: 284
Joined: Apr 08 2012 4:39pm
Location: Sweden

Re: MXUS 3000 - Cromotor Mini

Post by leffex » Sep 20 2014 7:56am

sacko wrote:The wires are my only concern, but I am sure I can mod them myself.

Comparing the wind to a Crystalyte, is this closer to a 4080 than a 4065?
From my understanding its less than 4065 i.e less than 8.5rpm/v, the 4080 is 9.5 or above?. And 3525 is 6.5.
Salestech in an ebike store

\/ampa   100 W

100 W
Posts: 252
Joined: May 15 2014 2:54pm
Location: Germany

Re: MXUS 3000 - Cromotor Mini

Post by \/ampa » Sep 21 2014 6:00am

Do these motors have 13AWG phase wires as standard?

User avatar
madin88   1 GW

1 GW
Posts: 3030
Joined: May 27 2013 2:02am
Location: Austria

Re: MXUS 3000 - Cromotor Mini

Post by madin88 » Sep 21 2014 6:39am

\/ampa wrote:Do these motors have 13AWG phase wires as standard?
it seems so. and unfortunately there is no U-shape in the axle (like Cromotor has) but a hole, which makes upgrading almost not possible :(
- 10kW belt drive with Neumotor 8057: [url]viewtopic.php?
- KTM Hardtail Pedelec / eZee V2 6T / 27,5" / Kelly KBSX @ 1,5kW / Torque PAS / CA-V3 / 13s4p Sanyo GA in Shark case

User avatar
spinningmagnets   100 GW

100 GW
Posts: 11399
Joined: Dec 21 2007 10:27pm
Location: Ft Riley, NE Kansas

Re: MXUS 3000 - Cromotor Mini

Post by spinningmagnets » Sep 21 2014 7:22am

I would like to suggest that the biggest difference between the Cromotor and this motor is the axle and stock phase wires. Clearly I have not used one of these, so take what I am about to say in the spirit in which it is given.

Although the Cro has a 50mm wide stator and this one has a 45mm, the V3 Cro has thinner laminations to avoid excessive eddy current heat (since some builders wanted to run 100V). Inductance on the Cro has also been improved on the V3. If you hit a pothole at 50-MPH, many forces are concentrated on the axle, and the Cro's axle is not only fatter, it is verified to be made from a very high quality of metal.

This MXUS 3000 is a bargain for anyone who wants to run it as a non-hub (where axle strength is not an issue), like a mid-mount longtail cargobike...or...the recently popular Motoped. Modifying the MXUS phase-wire recess in the axle to stuff-in the fattest wire possible may further weaken it. Just a thought...

edit: the V2 MXUS has thinner laminations and the aluminum cast stator-spokes (so its performance will be much more similar to the Cromotor). This motor is more affordable than the Cromotor, but specify the fattest phase wires they can use, plus always get a temp sensor.

User avatar
spinningmagnets   100 GW

100 GW
Posts: 11399
Joined: Dec 21 2007 10:27pm
Location: Ft Riley, NE Kansas

Re: MXUS 3000 - Cromotor Mini

Post by spinningmagnets » Sep 21 2014 11:14am

I also recall one builder drilling the axle all the way through (he had a lathe), and he ran two very fat wires out one side, and one fat wire along with the several smaller wires out the other side.

User avatar
Hyena   100 GW

100 GW
Posts: 5628
Joined: Aug 13 2008 9:10am
Location: Sydney, Australia
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by Hyena » Sep 21 2014 10:10pm

spinningmagnets wrote:I would like to suggest that the biggest difference between the Cromotor and this motor is the axle and stock phase wires. Clearly I have not used one of these, so take what I am about to say in the spirit in which it is given.
I actually think the biggest difference is the stamped vs solid stator.
If you're enthusiastic you'll be able to bake the windings on most motors before you melt the phase wires (unless they're really tiny)

A good example is the data I collected (the hard way!) at a recent EV race.
The H4080 is quite comparable to this new mxus motor with both being similar widths and having stamped stators.
The crown TC80 is near enough to identically wound, with the same 40mm stator but a solid cast stator.
Look at the difference below. The cast stator motor did 10 laps of a track under race conditions getting 12kw bursts and came out looking pristine. The H40 under the same conditions, even with drilled side covers ended up a crispy critter after only 7 laps, with the last few taking it easy.
So yeah, thinner lams for less heat in the first place is good, but either way if you go pushing big power into these things you're going to generate heat and that needs to go somewhere. And a nice fat cast stator is the best somewhere for it to go :) (an oil filled stamped stator motor would also work typically end up leaking)

Image
www.HyenaElectricBikes.com
Aussie high powered e-bike kits and custom performance ebikes
New FUTR and Hyena special edition Beta frames now available!
My build and HD video thread____. My youtube channel____ Hyena Facebook page
My bike is writing cheques my body can't cash...

User avatar
teslanv   100 MW

100 MW
Posts: 2675
Joined: Nov 03 2013 8:42pm
Location: Bellevue, WA - USA
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by teslanv » Sep 22 2014 12:59am

From MXUS:
The phase cable we use on that motor is just the 2.5mm2 size.

voltage and current For 400rpm is 48V35A

Please check the attached pic of the report.
45mm.jpg
45mm.jpg (136.83 KiB) Viewed 648 times
Last edited by teslanv on Feb 24 2016 8:51pm, edited 1 time in total.
DD Hubs, Batteries, Controllers & Custom Ebikes.
http://westcoastelectrics.com
West Coast Electric Cycles
Bellevue, WA
USA

User avatar
Samd   1.21 GW

1.21 GW
Posts: 3667
Joined: Jun 28 2011 11:08pm
Location: Ballarat, AU
Contact:

Re: MXUS 3000 - Cromotor Mini

Post by Samd » Sep 22 2014 1:10am

She's given you the 1kw motor report there, check the date. It's the 28mm stator with 0.5mm lams.

They sent the same to me and were up front saying it was the best they had - haven't tested the new one yet due to interbike.
But apologised and said soon.

Not too long until I test my own!
http://ballaratebikes.com/

ImageImageImage
"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

User avatar
Kent   1 kW

1 kW
Posts: 382
Joined: Jun 04 2011 3:14pm
Location: Vermont, USA

Re: MXUS 3000 - Cromotor Mini

Post by Kent » Sep 22 2014 8:49am

Samd wrote:She's given you the 1kw motor report there, check the date. It's the 28mm stator with 0.5mm lams.

They sent the same to me and were up front saying it was the best they had - haven't tested the new one yet due to interbike.
But apologised and said soon.

Not too long until I test my own!
Samd-when you receive yours could you confirm for us that it will fit a 135mm dropout?

Thanks
72 V, (2x36v, 11.5 ah in series) Cellman, HS3540, 18fet Lyen, Jamis Dirtjumper Hardtail. Its streetlegal w license plate, inspection sticker.

Only by setting an example of good road manners and public courtesy can we convince the general public to take the electric bike seriously as a transportation option. Obey traffic laws!

My build: http://endless-sphere.com/forums/viewto ... =6&t=45706
Going legal: http://endless-sphere.com/forums/viewto ... =3&t=49390

Post Reply