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by Ianhill
Dec 30 2020 10:48am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Lost a part if me that i i can't ever get bk im empty and broken got no time for any of this shit around me im gonna burn it all and send it to the tip.
Thanks you to anyone that followed and fuk you to the rest im done.
by Ianhill
Dec 27 2020 12:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Light dirt bike, QS 120 70h motor, custom steel frame
Replies: 203
Views: 43375

Re: Light dirt bike, QS 120 70h motor, custom steel frame

I thought you was gonna go austrailia style on us and pop that tyre like a pimple
by Ianhill
Dec 26 2020 11:46am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Scribounuios if you have not passed from covid could you please get in touch.
by Ianhill
Dec 21 2020 5:53pm
Forum: Motor Technology
Topic: APL's DIY axial-flux motor
Replies: 1369
Views: 122836

Re: APL's DIY axial-flux motor

The alloy to titanium is like pine to oak, looks stunning got good vibes coming off that plate.
by Ianhill
Dec 21 2020 10:56am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

If you do want it get in touch ill not give a crazy price im more than willing to see it gone if it makes one out of 2 and someone happy.
by Ianhill
Dec 20 2020 2:19pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Where to are you located fella ? Ive treated the bike decent as possible, the battery seems to be healthy last ride around a month ago and its been kept at 3.7v cell average now my charger kinda gives an health check with the capacity its put in and it seems close to 95% health and dont drop to yell...
by Ianhill
Dec 19 2020 7:09am
Forum: Motor Technology
Topic: what is cogging torque?
Replies: 71
Views: 5109

Re: what is cogging torque?

I dont mean to sound like a nob and can be snappy on times and apologise, Its the bemf that is creating drag when there is no power applied that was shown in the vid. It also shows that the rotors magnetic field and stator aligns itself through out the mechanical 360 rotation more pole pairs more th...
by Ianhill
Dec 18 2020 9:55am
Forum: Motor Technology
Topic: what is cogging torque?
Replies: 71
Views: 5109

Re: what is cogging torque?

Hummina Shadeeba wrote:
Dec 18 2020 9:51am
Cogging and torque the motor will put out arent related.
Yes they are directly linked thats why the ipm reluctance motor is a design improvement and chosen, if you bothered to watch the video you may learn something.

The engineering priciple is clearly shown, you can't argue with physics.
by Ianhill
Dec 18 2020 9:23am
Forum: Motor Technology
Topic: what is cogging torque?
Replies: 71
Views: 5109

Re: what is cogging torque?

esUb7Zy5Oio This is a good video to understand bmf. More poles a motor has the motor will align rotor and stator more times per 360 degree mechanical rotation. The stronger the bmf linkage more force needed to overcome it. So typically motors with heavy cogging effect will also have a very powerful...
by Ianhill
Dec 17 2020 7:39am
Forum: Motor Technology
Topic: APL's DIY axial-flux motor
Replies: 1369
Views: 122836

Re: APL's DIY axial-flux motor

Zj0v4CogW_s I seen this video yesterday of the theory behind the Ipm reluctance motor very interesting and easy to follow got me thinking how would this be implementied on an axial machine. I suppose the rotor would need to be thick enough to have the magnets inside it giving lots of extra mass inc...
by Ianhill
Dec 16 2020 2:52pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

I would have some decent photos to show you but my galaxy s7 decided its time to randomly reboot with a ram issue so im on a clunker now. The magnets seem to be mostly fine other than 2 that have weaken i can put metal to them and only half the magnet attracts suggesting the rotor had a thermal issu...
by Ianhill
Dec 14 2020 7:52am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Kuberg sell the motor complete just under a grand and I got a baby on the way, I'm gonna scrap it all along with 2020 change my hobby to walking up in the night instead had a shit full be honest this is just the icing on the cake my car broke down, then my phone kept restarting and now this at a ti...
by Ianhill
Dec 14 2020 2:45am
Forum: E-Bike Technical
Topic: Motor magnets
Replies: 5
Views: 157

Re: Motor magnets

Looks like a cyclone 3000? Someone might have a burned up one they can extract a magnet from for you? Theres a few that's took some surface damage and the opposing magnet has some damage from grinding too all in all theres about 6, I'd think they need to be done as a complete set so theres no varyi...
by Ianhill
Dec 14 2020 2:04am
Forum: E-Bike Technical
Topic: Motor magnets
Replies: 5
Views: 157

Re: Motor magnets

What's crazy is the motor still works fine lacking torque but spins up only half the magnet is missing and the half that remains was the end the hall sensors sit so there was no errors for the halls it spins up as usual it was a clicking noise that give it away and the fact I couldn't spin it by han...
by Ianhill
Dec 14 2020 1:02am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Just chuck a 90h qs mid drive fella.You have over heated it asp,what dc and ac amps was you running. Stock they run 13s depending on the controller it can be upto 225amp I've been just over 200amp it's been an animal and that's why it was chooching on its limit. I'd pull the throttle full from a st...
by Ianhill
Dec 14 2020 12:53am
Forum: E-Bike Technical
Topic: Motor magnets
Replies: 5
Views: 157

Re: Motor magnets

Thanks Eric for the reply I've come to grips it's a money pit that's met its maker I'll take any decent bike parts off scrap the rest and have a pedal bike.
by Ianhill
Dec 14 2020 12:49am
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Kuberg sell the motor complete just under a grand and I got a baby on the way, I'm gonna scrap it all along with 2020 change my hobby to walking up in the night instead had a shit full be honest this is just the icing on the cake my car broke down, then my phone kept restarting and now this at a tim...
by Ianhill
Dec 13 2020 4:19pm
Forum: E-Bike Technical
Topic: Motor magnets
Replies: 5
Views: 157

Motor magnets

Not got dimensions yet I've got the rotor out now but as this pic shows one the magnets has slipped out the slot and shattered theres not any damage to the stator luckily the magent is soft so theres some dust and a few bits of shattered magnet so if I could get an exact replacement set I'd possible...
by Ianhill
Dec 13 2020 3:33pm
Forum: Motor Technology
Topic: what is cogging torque?
Replies: 71
Views: 5109

Re: what is cogging torque?

When there a chucked magnet i suppose there will be shit loads of resistance that will do the trick pyle of shit.
by Ianhill
Dec 13 2020 3:18pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Kuberg freerider 2.0
Replies: 27
Views: 1362

Re: Kuberg freerider 2.0

Could hear clicking past few rides so I've stripped it down and the motor has chucked a magnet and most of them seem lose in the rotor so its met the end if the road for me I've spent load to much got all new brakes charger just under £1000 and this happens I'm fuked off with electric bikes if anyon...
by Ianhill
Dec 07 2020 5:19pm
Forum: Motor Technology
Topic: what is cogging torque?
Replies: 71
Views: 5109

Re: what is cogging torque?

I'm doing a service on my kuburg and theres now bearings going in the motor but with it in my hand the cogging is unreal I have split the chain and to pull it out took some oomph easy 4kg braking force to spin the motor. When I ride it I've always noticed it's very eager to slow on decel it's much l...
by Ianhill
Dec 04 2020 8:01pm
Forum: Motor Technology
Topic: APL's DIY axial-flux motor
Replies: 1369
Views: 122836

Re: APL's DIY axial-flux motor

Back peddle as you like sometimes a step backwards is required you have made more progress than I ever have at a scratch build so keep it up Rome was not one day it's the continual grind and enthusiasm most stay tuned into the thread for I'm sure you will get a good prototype in order soon with your...
by Ianhill
Dec 03 2020 2:36pm
Forum: Motor Technology
Topic: APL's DIY axial-flux motor
Replies: 1369
Views: 122836

Re: APL's DIY axial-flux motor

http://educypedia.karadimov.info/electronics/javamotordc.htm Have a dig about on there for visualization reference. For the shaft to become hot it has to be inside an inductive loop when its one single coil surrounding the entire shaft like an inductive loop for a mechanic etc but when the shaft has...
by Ianhill
Nov 29 2020 11:27am
Forum: E-Bike Reviews & Testing
Topic: Chargery C10325 24s 1500w
Replies: 11
Views: 640

Re: Chargery C10325 24s 1500w

I'll never use Andy guys a self centred tosser
by Ianhill
Nov 21 2020 12:10pm
Forum: E-Bike Reviews & Testing
Topic: Chargery C10325 24s 1500w
Replies: 11
Views: 640

Re: Chargery C10325 24s 1500w

I may have to at some point. Cant power it up at all as it trips house fuses even trying to plug it in at the wall. So its the primary side that is shorted that limits the problem to the vac side of the board long as there's no damage to the circuit board it's should be fixable, major inconvenience...