The biggest one should bring even more fun for adrenaline junkies.
Mmm mobipus.

Hi madin !
Yes the non-balanced rotor is a big problem.district9prawn wrote: ↑Aug 22 2018 8:38amI've received my 8057 and I seem to have the same problem as madin with his original shaft. The fit is quite loose. With the motor bolted to a block of wood and clamped to the desk, the vibration is strong enough at 3000rpm to cause my oscilloscope to slowly wander around the desk. The motor itself seems fine. No load consumption is nice and low and nothing funky on the scope when spinning motor with drill.
Yes it really took only 3 days from CA USA to Austria (shipped via DHL).
I'm looking for a multi-project motor:madin88 wrote: ↑Aug 24 2018 6:53am
Yes it really took only 3 days from CA USA to Austria (shipped via DHL).
I had to pay 20% of the total amount (total means incl shipping costs) and 15€ processing fee.
Whats your target power and topspeed?
Maybe the 8039 is powerful enough for your pocket bike, but on the other hand you can never have enough torque (especially on a single stage reduction i would go with more torque and less RPM).
if you wanna go 100kmh even on the flat you probably need more as the 10hp, and for 130kmh i guess it needs 15-20hp (depending on the aerodynamic drag).
Yes using two controllers probably would be more practicable, but theoretically, if the stator and rotor are exactly similar aligned on one shaft, you could just parallel the windings and run both with one controller.
Yes i think so.macribs wrote: ↑Sep 19 2018 6:14amThx for educating me. I didn't know that. That might open up some interesting use cases for bikes with real estate issues.
But that would also mean it would be even more important to choose a controller that can deliver high amp load? As the amp would drive both motors?
Just doing a lot of pondering before I go crazy and pull the trigger on a project that is probably over my head. I was thinking 2 of the '19' motors could sit as far out(or in) as possible, with a shaft (just below the shock) tying them together .there would be room for belt(s) straight down thru the swingarm to a jackshaft , for reduction and or even a 2 spd tranny. Looking at it today im thinking theres not room for sprocket AND couplers there . 8000 rpm kinda intimidates me , but its apparent this is a clean little machine (with your upgrades). I don't want to go fast but I do want to haul a big load up a big hill, do you think this would run well at a huge reduction? 20 to 1 ?3) see above, but i wonder why you would like to mount two motors beside the shock? When looking at the qulbix frames i would put one motor underneath the swingarm.
I missed this! Incredible! Ill definitely be here !As previously mentioned i will soon do improvements on the rotor by installing stronger, segmented magnets and rewind it to 4T (~60kV) or 5T (~50kV) YY.
I read what you wrote but I don't think I fully understand what you are chasing. Could you maybe do a quick drawing?douglashart wrote: ↑Sep 19 2018 7:29pmJust doing a lot of pondering before I go crazy and pull the trigger on a project that is probably over my head. I was thinking 2 of the '19' motors could sit as far out(or in) as possible, with a shaft (just below the shock) tying them together .there would be room for belt(s) straight down thru the swingarm to a jackshaft , for reduction and or even a 2 spd tranny. Looking at it today im thinking theres not room for sprocket AND couplers there . 8000 rpm kinda intimidates me , but its apparent this is a clean little machine (with your upgrades). I don't want to go fast but I do want to haul a big load up a big hill, do you think this would run well at a huge reduction? 20 to 1 ?3) see above, but i wonder why you would like to mount two motors beside the shock? When looking at the qulbix frames i would put one motor underneath the swingarm.
I think 50 kv @ 7 to 1 reduction would come close to serving my purposes, so im thinking ,initially, about setting up similar (chain or belt) to your build. If after riding it a while, i decide i need more reduction , then at least ill have the bike+motor there to design off.i will soon do improvements on the rotor by installing stronger, segmented magnets and rewind it to 4T (~60kV) or 5T (~50kV) YY.
I wonder why you like to use the Neumotor if you probably could fit the QS2000W or an LMX midmotor below the swingarm.douglashart wrote: ↑Sep 20 2018 6:17pmyes! the Sur-ron setup could well work under the qublix (esp with the neumotor) but im afraid it will only work with the 8038. Even at that, i think it could work.
As for the continuous power it is very hard to tell so far, because the Adaptto controller doesn't work properly, or better say not that efficient sometimes -> which i now believe is a GENERAL ISSUE and not just related to this motor.If your pulling 10kw from the 8057, would i be correct in thinking the 8038 good for 6 kw - 3kw continuous?
Does Vasili's controller have a good auto fine tune function? Does it adapt ind timing setting according to battery's drop voltage? Im asking because with adaptto controller you said you have to stop once a while to change timing setting and the other one.madin88 wrote: ↑Sep 23 2018 2:41amI wonder why you like to use the Neumotor if you probably could fit the QS2000W or an LMX midmotor below the swingarm.douglashart wrote: ↑Sep 20 2018 6:17pmyes! the Sur-ron setup could well work under the qublix (esp with the neumotor) but im afraid it will only work with the 8038. Even at that, i think it could work.
Mentioned motors have 2-3times the weight, but they have all the benefits of an Inrunner design, and can take way more peak power due to the larger mass.
The QS2000 should work well with my 1:6 belt drive as it has above 45Nm peak torque.
As for the continuous power it is very hard to tell so far, because the Adaptto controller doesn't work properly, or better say not that efficient sometimes -> which i now believe is a GENERAL ISSUE and not just related to this motor.If your pulling 10kw from the 8057, would i be correct in thinking the 8038 good for 6 kw - 3kw continuous?
One day i was riding up that hill, pulling 8-10kw for some minutes and the Controller was below 45°C and Motor less than 100°
We are talking about similar power to QSV3.
Then the other day the motor did overheat at half of the distance when riding up that hill, and the controller was close before shutdown too![]()
I am really looking forward to get the Vasili Controller, but there are many other options too if you don't looking for a unit with display, BMS, charge function etc as i would like to have.
Thnx for the help madin .Im sure your right about the mass, but just the size of the neu , gives that much more space for a reduction shaft. more reduction = less stress on the motor? I would be happy enough with a top speed of 40kph. Something that stumps me is that a 60kv inrunner @ 6 to 1 reduction is still higher kv than my mxus 5t,7.2 kv ,which I always wished was lower geared . I was looking at LR small block (again less mass but), I believe, could also fit a shaft behind the motor . I may well spring for a Qulbix frame with an extra swingarm so I can build one (one stage) then play with another. Ill be waiting for the mentioned upgrades from vasili and your progress with this neumotor. Pound for pound I would guess the outrunner has a higher % of copper than inrunners, but that's just me guessing again.I wonder why you like to use the Neumotor if you probably could fit the QS2000W or an LMX midmotor below the swingarm.