MAGICPIE3FOCUSPOWER
10 kW
For 20S (75V) 4T is the best choice right? looking....at speed:torque ratio?
MXUS 3000 Hub Motor - V1 V2 V3
- Thread starter Allex
- Start date
chucho
1 kW
MAGICPIE3FOCUSPOWER said:
What rear wheel are you gonna use?
And amps?
teslanv
1 MW
For any winding, the smaller the wheel the better, if it suits your target speed. For me, that is a 3T winding, 17" Moto rim with a 21.5" O.D. tire and 120+ phase amps. With a 20S battery, my target speed is 50 MPH. If I can't get 50 MPH with 20S, I have a 4115 controller that can take 150V max. 
arkmundi
10 MW
I started this 80 Day Race Open Source Design thread and am considering it, as part of a design & build team. Too old to actually be a driver on the race itself. Like NASCAR, opportunity for some branding for those contributing know-how, parts & tools.
So what about a MXUS 3000 motor as part of a build? I'm thinking that all things considered - the rules - a high tech tandem bicycle with front & rear motors would work great. With lots of battery - enough to cover 320 miles, with hard pedalling. That's the average daily mileage to cover the route in eighty days. The secret formulae of success will be in being light weight and fast solar charging of the entire battery. Rules allow for 8-hour rest periods that don't count towards race time. So that would be enough I think, if taken 8 am to 4 pm, in the country, to maximize solar charging. And riding hard 4 pm to 8 am.
So what about a MXUS 3000 motor as part of a build? I'm thinking that all things considered - the rules - a high tech tandem bicycle with front & rear motors would work great. With lots of battery - enough to cover 320 miles, with hard pedalling. That's the average daily mileage to cover the route in eighty days. The secret formulae of success will be in being light weight and fast solar charging of the entire battery. Rules allow for 8-hour rest periods that don't count towards race time. So that would be enough I think, if taken 8 am to 4 pm, in the country, to maximize solar charging. And riding hard 4 pm to 8 am.
diggler
1 kW
For any winding, the smaller the wheel the better, if it suits your target speed. For me, that is a 3T winding, 17" Moto rim with a 21.5" O.D. tire and 120+ phase amps. With a 20S battery, my target speed is 50 MPH. If I can't get 50 MPH with 20S, I have a 4115 controller that can take 150V max.
NICE!!!
Are you going to upgrade the phase wires right away?
What is the battery amps of that controller?
You should post up a video on this thread when you get it running!!!
MAGICPIE3FOCUSPOWER
10 kW
chucho said:
Thanks for help all!
I have 150A cont. and max. 350A phase controller and will use a 26 inch tire.
MAGICPIE3FOCUSPOWER
10 kW
Haha I think you are right :lol:
But don't know how long the motor will last at this current
:lol:But don't know how long the motor will last at this current
teslanv
1 MW
The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.MAGICPIE3FOCUSPOWER said:Haha I think you are right
You may want to beef up those phase wires a bit. :wink:
MAGICPIE3FOCUSPOWER
10 kW
Thank you! 
I have a question about your graph at right of the graph I see phase currents.
90A is still safe right?
I have a question about your graph at right of the graph I see phase currents.
90A is still safe right?
Isnt the controller bucking the voltage down on low RPM ?teslanv said:The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.MAGICPIE3FOCUSPOWER said:Haha I think you are right
You may want to beef up those phase wires a bit. :wink:
teslanv
1 MW
90 Phase Amps should be fine, as long as you are not running it WOT for extended periods.MAGICPIE3FOCUSPOWER said:Thank you!
I have a question about your graph at right of the graph I see phase currents.
90A is still safe right?
MAGICPIE3FOCUSPOWER
10 kW
Thanks! 8)
\/ampa said:Isnt the controller bucking the voltage down on low RPM ?teslanv said:The MXUS 45mm motor is rated for 6Kw Peak. Even at just 48V, 350 Phase amps is 16.8Kw.MAGICPIE3FOCUSPOWER said:Haha I think you are right
You may want to beef up those phase wires a bit. :wink:
yes it works like a step down converter and 350A Phase must not be 16.8kW at 48V. If it would be battery current, than yes^^
however, the motor will anyway see these 350A for less than a second or two (drops quick) because of battery current limit which kicks in. acceleration at take off will be harder, but the price is lots of heat generated in the motor. decide your own if its worth it.
markz
100 TW
About to lace up my motor, is EVERYONE dishing their wheels? Seems like a major learning curve to dish the wheel.
I got a regular 19" mountain bike, Specialized Rockhopper.
I got a regular 19" mountain bike, Specialized Rockhopper.
arkmundi
10 MW
You can take the approach of Paul at EM3ev - I've got one of his laced MACs. Which is to lace the spokes with the head all pointing in the same direction. What I'll be doing when I get around to it.markz said:
teslanv
1 MW
Phase resistance for the MXUS XF40-45H V2 (Al Stator) 21X3T Winding (Stock Phase Wires):
0.216V Voltage drop with 3.04A current.
.216/3.04=0.071 Ohms Resistance.
At 120A Phase Current, that will generate (120^2x.071) = 1022 Watts of Loss
KV tested at 565.7 RPM at 48.1V, so 11.76 KV.
2.0A current at No Load.
That's right inline with the Fast Wind Crown...
http://www.ebikes.ca/shop/ebike-parts/motors/mtc100r24.html
0.216V Voltage drop with 3.04A current.
.216/3.04=0.071 Ohms Resistance.
At 120A Phase Current, that will generate (120^2x.071) = 1022 Watts of Loss
KV tested at 565.7 RPM at 48.1V, so 11.76 KV.
2.0A current at No Load.
That's right inline with the Fast Wind Crown...
http://www.ebikes.ca/shop/ebike-parts/motors/mtc100r24.html
louis raaijmakers
100 W
- Joined
- Oct 9, 2013
- Messages
- 190
hello es
i got a mxus in a 26 inch wheel from the factory.
but i hit a curbe hard and now my rim is a bit f##ked up.
i was thinking of going to 19 ich motor wheel but does any one know how to do this?
or has anyone already done it?
then i would like to know the length of the spokes
greetings louis
i got a mxus in a 26 inch wheel from the factory.
but i hit a curbe hard and now my rim is a bit f##ked up.
i was thinking of going to 19 ich motor wheel but does any one know how to do this?
or has anyone already done it?
then i would like to know the length of the spokes
greetings louis
Relanium
10 W
You have to get the rim first (Make sure it's 36 hole), measure ERD (Efective Rim Diameter) and then measure the motor, decide what thickness spokes you want and then use spoke calculator.
And use different calculators, to be sure to get the right length.
Then find a bike shop or internet seller to make you custom length spokes.
Once you have the spokes, just put them in and lace the wheel.
I know, it sounds scary, but it's actualy quite easy :wink:
Just search around the forum and web a little, there's a ton of material about lacing.
And use different calculators, to be sure to get the right length.
Then find a bike shop or internet seller to make you custom length spokes.
Once you have the spokes, just put them in and lace the wheel.
I know, it sounds scary, but it's actualy quite easy :wink:
Just search around the forum and web a little, there's a ton of material about lacing.
Rix
100 TW
louis raaijmakers said:hello es
i got a mxus in a 26 inch wheel from the factory.
but i hit a curbe hard and now my rim is a bit f##ked up.
i was thinking of going to 19 ich motor wheel but does any one know how to do this?
or has anyone already done it?
then i would like to know the length of the spokes
greetings louis
Your questions can be answered here.http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=55458&start=75 I along with several others have converted mtb to mc rims and tires with great results. Go to the Forum and read through it. If you still have questions, just ask.
teslanv
1 MW
OK, gents. Here's the low-down.
Justin says that he can get by with just one motor of each winding for testing.
I will cover the cost of 16X4T Winding.
I set up a gofundme page for three additional windings, which would be the 21X3T, 12X5T and the 10X6T windings. I am hoping to raise $750 total ($250 per motor)
If you want to see the MXUS XF40-45H motors added to the Simulator, please make a small donation. I only need 30 people to donate $25 and we are good.
I will add these motors to our first order from MXUS, and Justin says that he should have time to test them by Spring.
Here is the Gofundme page:
http://www.gofundme.com/lcaew0
Thanks for your help.
Barent Hoffman (teslanv)
Justin says that he can get by with just one motor of each winding for testing.
I will cover the cost of 16X4T Winding.
I set up a gofundme page for three additional windings, which would be the 21X3T, 12X5T and the 10X6T windings. I am hoping to raise $750 total ($250 per motor)
If you want to see the MXUS XF40-45H motors added to the Simulator, please make a small donation. I only need 30 people to donate $25 and we are good.
I will add these motors to our first order from MXUS, and Justin says that he should have time to test them by Spring.
Here is the Gofundme page:
http://www.gofundme.com/lcaew0
Thanks for your help.
Barent Hoffman (teslanv)
teslanv
1 MW
Gofundme only accepts credit cards through WePay and Stripe, it looks like. However if you want to make a direct donation to the project you can send it via PayPal to my email address. barenthoffman@outlook.commadin88 said:
teslanv
1 MW
Another $50 donation through Paypal, puts our total up to $110 for the MXUS Testing Project.
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