Endless Sphere

In reply to limbs query ; the version i was working is the rare one built for a back pedal braked rear hub and has no freewheel so the kick on was a real problem, for one with a built in freewheel a lower sensor polling frequency and or slower power roll off ramp would be fine.

hi again fourbanger i forgot your second question, " why is it better than the SWX02 series ?" because it has thinner laminates and comes in a faster wind i could not find an swx with a goodly fast wind and the xf15 sold as a 36v motor has less turns and more wire than any of the swx02's i...

Hi Fourbanger, the measurement changed when i went form eyeballing it and guesstimating and getting out the calipers, for the greenpedel motor it is sitting in a box abandoned because the motor was not a bafang. it had a plastic ring gear and the motor rotor was horribly unbalanced and i was at the ...

regarding the corratech the bike was modded for a friend and he sold it but yes the bike is still going strong with the new owner

Hi Kosio86, if your torque sensor was damaged i would expect it to either give more power than usual for pedal effort, there are reports elsewhere on es that talk about failing torque sensors and when their spring gets weak or crushed by the elephant legged individuals who can stomp harder than the ...

Hi Nice discussion , Seeing as you are all looking at big flat motors for a killer middrive, i thought i would add my latest to the mix , probably a lot more affordable than most of the others as well its the core out of a muxs xf15 1 108mm x23mm stator wound with 6 turns of 10 inhand 0.5mm copper a...

Building a battery now with A123 AMP20 20 ah pouch cells will be 14s 1p to go with a flipsky 12fet vesc6.6 and hopefully saturation will be a little more than the 60 battery amps that the vesc is capable of. More pics to follow , slowgress is progress

This one shows the nice wheel i built it into in the back ground IMG832.jpg And the mostly installed item in the bike with one motorcycle tyre 16x2.5" vee rubber up front and a bmx on on the back while i wait for another like the front had to cut of the V brake bosses to fit the moto tyre on th...

add important detail;drain plug Solvent clean and scrub, assemble gears and clutch insert beastly outrunner (0.35mm lams 24mm thick 108mm stator wound with 6 turns of 10x 0.5mm wire in wye )

This shows all the terminations, what you dont see is that under the heatshrink the wires ends are all soldered and then coated in oil resistant silicone this is then squeezed by the heat shrink hopefully sealing the wire core and insulation against fluid creep. it has been a couple of months being ...

This was all done ages ago but i work full time as a groumdwater tracer scientist and have a 6yo daughter .., slogress is progress any way i digress... Now you can all watch it all speeded up into a few of the best pics .. IMG812.jpg now to get rid of that useless hall board, you can also see that i...

Innards are coming out

Well thanks Amberwolf for your wonderful educational pieces now Back to the Topic.

this one shows numbers on the pair i got


photos

here are some pics if i can make them work

I just found this complete gearset 47.5mm by 13.5mm 36t https://www.aliexpress.com/item/4000370794990.html?spm=a2g0o.productlist.0.0.18045fde2PcbII&algo_pvid=b81053f7-5d10-4acc-a35e-0ba5f42eceb0&algo_expid=b81053f7-5d10-4acc-a35e-0ba5f42eceb0-21&btsid=cdad4d8d-f405-46b6-bf74-1b82201d095d...

vasam : i have ordered a set of those 12mm wide gears, I rekon they will work well, a little extra clearance wont hurt, the last set of steel gears i got were for the smaller older bafang hubs, and they were .5mm wider than the originals and they rubbed on the face of the one way clutch housing. The...

Here is a new geared hub I've been looking at as something better than the swx bafang for a variety of reasons that will become aparent. having ordered two to test and hot up, they arrived swiftly direct from mxus factory Photos to come a cassett version to go in a wheel with steel gears (aliexpress...

sorry about the slow reply ... The torque sensor, i cant remember the colour code but how i identified the wires was to measure the three wires voltages with the internal bosch controller powered up and motor apart and one is +5v supply one is ground and the third with a voltage thats not 5v is the ...

hi all the steel gears are easily available, i did a search for hub motor steel gears on aliexpress and got these three links below they come in 28t and 36t flavors i have the smaller ones in an old swx? bfang motor 14t reterminatedin delta and filled with ealed bearings a custom breather pipe with ...

you can get plenty of gimball control motors for drones the larger ones have a 80mm dia stator and come in very low kv forms wound with fine wire, not good for high power levels but high efficiency 3 phase brushless motors that will turn slowly on your low voltage with a cheap sensorless controller....

hi im located in adelaide australia whats your asking price and is it new enough to have the 0.27mm lams and is it a rear or front wheel with freewheel or casett ?

regards punjehl

hi i need a mac for a mid drive conversion preferably a 6t or 8t winding, rear freewheel threaded, would consider a burned out one to rewind if its cheap freight would to be payed by me to australia ill need photos as well regards punjehl

Lebowski this is along similar lines as your motor so i thought you would be interested. Here is a design i might try using a spare geared hub magnet rotor i have lying around gathering dust to build something similar to the motor discussed in this rather thin article from UQ (University of Queensla...

Hi jabalat, no idea on the price or availability of parts, i would think the small plastic gear would get mashed first if the motor was allowed to run at excessive temperature, with the bosch controller at 250 to 350w this will never happen but with the vesc pushing 800+w it would be easy to cook it...

hi SlowCo, I like the suggestion do they use a standard three dog sprocket like the nexus? It definitely needs it to be a capable hill climber and it would put less strain on the igh at top speed