Search found 54 matches

by Oli.Hall
May 11 2022 8:43am
Forum: Items for Sale - New
Topic: Cyc motor and Asi bac 855 kit New Unused
Replies: 3
Views: 539

Re: Cyc motor and Asi bac 855 kit New Unused

Cyc motor kit woth Asi bac 855, Bought for a project and never got around to it, NEW unused. Paid £1200.00+Shipping Open to sensible offers, Uk prefered although can ship, Any shipping cost's are additional. Thanks Hi Reece, I am also interested if this is still for sale? What bottom bracket is thi...
by Oli.Hall
Mar 31 2022 2:12pm
Forum: EBike Technical
Topic: VESC BMS
Replies: 9
Views: 294

Re: VESC BMS

ENNOID BMS, AFAIK is the only commercially available BMS that does exactly this: https://www.ennoid.me/bms/ss NEW feature for 2022: VESC & VESC-tool CAN & USB compatibility for firmware updates, data monitoring & parameters configuration DIEBMS is the original open source version from wh...
by Oli.Hall
Mar 11 2022 5:42pm
Forum: EBike Troubleshooting
Topic: newbie question: Julet connectors
Replies: 5
Views: 277

Re: newbie question: Julet connectors

Yes there are two versions of the Higo / Juliet connector. There is a standard Higo / Julet and then there is a Higo / Julet Mini connector which has been available for a short while now and it is just slightly smaller than the standard version. I’ve never personally compared the diameter of these c...
by Oli.Hall
Mar 06 2022 5:57am
Forum: EBike Troubleshooting
Topic: E-Rider 68mm BB spider bolts bottoming out
Replies: 1
Views: 125

Re: E-Rider 68mm BB spider bolts bottoming out

You are correct. I have also noticed that the spiders that Ebikes.ca supply have changed recently. The result of this is that the spider is thinner where the bolts pass through and it needs to be used with shorter bolts. Ebikes.ca used to supply a spider that has CL47 printed on the back to designat...
by Oli.Hall
Feb 02 2022 7:07am
Forum: Battery Technology
Topic: Bosch power pack BMS raplacement? Can it be done?
Replies: 7
Views: 302

Re: Bosch power pack BMS raplacement? Can it be done?

I have repaired several faulty Bosch PowerPack 500 BMSs to working order. I am also interested in the Bosch BMS and the CAN protocol and I have spent many hours on google translate! Tomblarom - Did you make your test rig to study the CAN protocol? Do you mind me asking what your intentions are? Swam...
by Oli.Hall
Jan 24 2022 8:29pm
Forum: EBike General Discussion
Topic: Dual Battery Module
Replies: 10
Views: 383

Re: Dual Battery Module

In theory, you would experience a minor voltage drop (0.7V), but in practice, I don't think anyone would notice any performance difference, relative to the benefits of using two batteries. The loss of voltage is less of an issue, the thing to consider is that this voltage drop is converted into hea...
by Oli.Hall
Jan 16 2022 3:40pm
Forum: EBike General Discussion
Topic: What is the shortest spoke you ever laced or seen in person?
Replies: 8
Views: 465

Re: What is the shortest spoke you ever laced or seen in person?

I’ve gone as short at 60mm in radial lacing using Sapim polyax nipples and I was lucky and didn’t have to modify the rim. It was a tremendous PITA to build because as soon as I had more than half the spokes in, even with them only tightened one or two turns, there was such little play in the wheel t...
by Oli.Hall
Jan 14 2022 10:19am
Forum: Motor Technology
Topic: FLIPSKY new 20s 100A tiny controller (vesc based)
Replies: 359
Views: 20860

Re: FLIPSKY new 20s 100A tiny controller (vesc based)

Meanwhile, if anyone around Cambridge area has one of these new 75100s and is willing to let me probe it with a scope... On the basis of "I break it I'll buy you a new one" it would be pretty interesting to get some double pulses tests, current shunt tests etc done. I might be able to hel...
by Oli.Hall
Jan 12 2022 7:56am
Forum: EBike Technical
Topic: Upgrade Flipsky 75100?
Replies: 3
Views: 441

Re: Upgrade Flipsky 75100?

You would have to recompile the firmware below with increased current limits

How to update firmware on the Flipsky 75100 FOC ESC
https://forum.esk8.news/t/how-to-update ... -esc/61819
by Oli.Hall
Jan 12 2022 5:25am
Forum: EBike Technical
Topic: Flipsky with 24S?
Replies: 16
Views: 614

Re: Flipsky with 24S?

P.S, as you said, usually everything is rated below what it can actually take I didn't say that! :lol: I said that manufacturers of ESCs designed for high voltages will [should!?] have chosen components that are rated far in excess of the maximum voltages they are likely to see in normal use to ens...
by Oli.Hall
Jan 11 2022 6:10am
Forum: EBike Technical
Topic: Flipsky with 24S?
Replies: 16
Views: 614

Re: Flipsky with 24S?

So I'm left with two questions here: 1. Will changing caps to a higher voltager 150V/200V? be enough to solve the issue? Ultimately, without knowing all the ratings of all the other components on the board, the only way to find this out would be to try it and see what happens. If it has survived >1...
by Oli.Hall
Jan 10 2022 6:12pm
Forum: EBike Technical
Topic: Flipsky with 24S?
Replies: 16
Views: 614

Re: Flipsky with 24S?

The flipsky 75100 although called '75' is actually rated for 20S. Yes, it’s design is based on a controller called the VESC 100/250 which is rated for a maximum supply voltage of 22S / 92.4V. I have left the controller on for hours on purpose fully charged in order to make sure it doesn't fail and ...
by Oli.Hall
Jan 10 2022 10:10am
Forum: EBike Technical
Topic: Flipsky with 24S?
Replies: 16
Views: 614

Re: Flipsky with 24S?

and was wandering if this version: https://www.aliexpress.com/item/1005001407082959.html?spm=a2g0o.detail.1000014.8.603a655182Qsee&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.33416.213724.0&scm_id=1007.33416.213724.0&scm-url=1007.33416.213724.0&pvid=4a805864-7edd-47eb-8989-dff...
by Oli.Hall
Jan 10 2022 10:09am
Forum: EBike Technical
Topic: Flipsky with 24S?
Replies: 16
Views: 614

Re: Flipsky with 24S?

I presume you mean 24S Li-Ion 100.8V, and not 24S Li-Fe 87.6V? The original VESC 100/250, which is what the 75100 is based on, is specified up to 22S and it uses 200V rated caps, so I think you are quite fortunate that your 75100 with it's 100V caps is working at all at 24S! At steady state before y...
by Oli.Hall
Jan 05 2022 1:07pm
Forum: EBike General Discussion
Topic: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)
Replies: 57
Views: 2276

Re: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)

Looking at the picture of the side cover in the vise, I wonder if I can use a small shim to put some pressure just in the right spot to bend the center of the cover to make it perpendicular. :idea: The motor shells and side covers are made from die cast aluminium which is very un-malleable and does...
by Oli.Hall
Dec 22 2021 2:42pm
Forum: EBike Technical
Topic: Phaserunner plug breaking
Replies: 4
Views: 406

Re: Phaserunner plug breaking

Joe2021 wrote:
Jun 30 2021 12:28am
Hopefully there still is a real fix for it...
Hi Joe,

Did you find out how to successfully disable Plug Braking on your PhaseRunner please?
Not just to set a regen min speed, but to fully disable it?

Kind regards,
Oli.
by Oli.Hall
Dec 22 2021 8:21am
Forum: EBike Troubleshooting
Topic: Help UPP 48V 20amp Battery
Replies: 3
Views: 215

Re: Help UPP 48V 20amp Battery

Hi, The board you have pictured is only there to power the USB port on the side of the battery. It's job is to work as a voltage step-down converter which converts the 48V main battery voltage down to 5V for the USB phone charging port. The battery should function perfectly well with this board disc...
by Oli.Hall
Dec 17 2021 11:53am
Forum: EBike General Discussion
Topic: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)
Replies: 57
Views: 2276

Re: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)

:lol:

Are you going to order another side cover?
I'm sure that will turn it back into a good motor!
by Oli.Hall
Dec 15 2021 1:08pm
Forum: EBike Build Threads
Topic: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?
Replies: 64
Views: 2109

Re: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?

So I'm not sure if they mean the label on the outside case, or on the PCB. They mean the label on the case. The boards are all the same, but the firmware is different for different versions of the controller that expect to recieve different inputs, including input on pad X4. For example, there used...
by Oli.Hall
Dec 15 2021 12:42pm
Forum: EBike Reviews & Testing
Topic: Cycle Analyst V3 preview and first beta release
Replies: 4783
Views: 959055

Re: Cycle Analyst V3 preview and first beta release

Hi, In the photo, if the plugs pictured are attached to the CA3, then the 2-pin JST is a duplicate temperature sensor plug You can confirm this by checking continuity with a multimeter to other temperature sensor plug which is part of the same cable as the throttle/ebrake/aux connectors near the CA3...
by Oli.Hall
Dec 15 2021 11:20am
Forum: EBike Build Threads
Topic: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?
Replies: 64
Views: 2109

Re: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?

It is on the white wire that in theory temperature gets "multiplexed", if the motor has an internal temperature sensor tied in with the speed hall sensor. I believe that my friend, is wishful thinking. If you show me a KT display successfully displaying a motor temp. THEN I'll believe you...
by Oli.Hall
Dec 15 2021 10:13am
Forum: EBike Build Threads
Topic: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?
Replies: 64
Views: 2109

Re: What can a Grin controller + cycle analyst do that KT controllers + KT display can't do?

Thanks--that is useful info. Tells us at least how that specific version of signal muxing works. I suspect they are using the thermistor itself as the pullup resistor for the speedo hall signal, inside the motor (but without seeing the hardware inside the motor, dunno for sure). Hi, The NTC fitted ...
by Oli.Hall
Dec 09 2021 4:48am
Forum: EBike General Discussion
Topic: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)
Replies: 57
Views: 2276

Re: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)

Sorry, I realised I made a typo above, I was *not* able to remove my freehub carrier, so I was unable to tell for certain whether it was threaded in, or pressed in. Well done on making the tool try and unscrew it! I agree, there's really no reason it should be so tight. I tried to undo one with a pi...
by Oli.Hall
Dec 08 2021 8:31pm
Forum: EBike General Discussion
Topic: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)
Replies: 57
Views: 2276

Re: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)

I am glad you have been able to confirm the problem as we suspected is a poorly fitting freehub carrier. Judging by the dial-test indicator that you have, I suspect that you might possibly have access to some kind of machine-shop. If you have access to a lathe, and you can unscrew the freehub (I was...
by Oli.Hall
Dec 06 2021 4:43am
Forum: EBike General Discussion
Topic: Does my brand new hub motor (Aikema AKM-128CST) have a bent axle? (4K video)
Replies: 57
Views: 2276

Re: Does my brand new hub motor have a bent axle? (4K video)

Do you know if the circuit components are easy to access after taking off the cover. Yes, they are all on the same PCB which is screwed to the outside of the motor core. Note these observations are for the AKM-100 motor which I have to hand. The AKM-128 may use different size components, screw size...