Endless Sphere

I don't have access to my files right now but if my memory serves right, 2 wires are used to pass through "ignition" wire to controller. With ohmmeter, find those two wires that have 0 ohm resistance (measured both ways!). I found one post releated: https://endless-sphere.com/forums/viewtopic.php?p=...

If you need motor freewheel, then ACS crossfire. It has standard M30x1 inside thread.

For crank / BB chainring freewheel, get it from Sick Bike Parts:
Ultra Heavy Duty $120
or
Heavy Duty $85

ACS Crossfire freewheel, from ebay.

Or I assume I could use more LEDs in series? If string has 3 white LED's in series (with resistor) for 12V then 5 red LED's with the same resistor would be safe. Why not just use a 12v adapter and 12v LED lights (or multi-voltage lights) that are commonly available at low prices. Cheap low-powered ...

Or use a small red film to cover the glass and turn it into a taillight. Not a good idea as white LED emits very little in red spectrum (it's a blue led with phosphorous coating that converts part of the blue to yellow which in combination appears white to human eye). When replacing white LED's to ...

From my own experience, snow is another disadvantage to rim brakes. Found out last winter during trail riding (and not on the streets!) that between pulling brake lever and actual braking there can be up to 1 second delay. It creates thin layer of ice to the rim (after each braking), which first has...

Motor freewheel uses aluminum bushing/adapter to mount it onto motor shaft. When have access to a lathe, you could turn bushing's collar thinner from threaded side (thick red line on the picture), so freewheel would screw on further outward on bushing. Either that or loosen the fixing screw and pry ...

COB module on Tmall 5730 triplet module on Tmall 5730 version has written "digital constant current chip" but clearly shows two 150ohm resistors (in parallel? that's 75ohm). If those resistors are in parallel, then there's about 30mA draw @ 12VDC. 14,5V will roughly double the current. 10,5V from m...

LockH wrote: ↑

Jun 26, 2018 10:06 am

Looks like C-1 from Lit Motors.

Right side cup has left-handed thread.

Designed and milled FET-to-case heat transfer block. FET mounting holes are M3 threaded and placed for each FET separately. Block+FET thickness is about 10mm, so if you add thermal pad and a washer then 10mm M3 screw is just perfect, without danger of protruding to another FET's belly. FET cooler.JP...

Don't bother, get yourself ACS Crossfire freewheel.
You need a bearing puller to get current one off with it's bushing to gearbox shaft. Getting freewheel off the bushing is trickier but you'd need to do it any case.

jonnydrive wrote: ↑

Apr 12, 2018 1:38 am

What do you think it is the cause of the broken? The low quality of the components, the absence of a rear suspension or something else?

No suspension, high tire pressure and heavy bike (about 35kg: 15kg bicycle, 5kg motor+controller, 15kg battery). Oh, and high speed and bad roads.

I have a hardtail, about 1400km since conversion (250-300km in winter). I wish I had full suspension, even when riding only streets.
During winter I broke rear axle riding local forest biking/skiing/jogging trail - which had quite smooth, worked up surface.

If not suppose I put a 24T sprocket on the motor shaft and then that connect to the 14T sprocket on the bicycle hub would that affect my torque capability to go up hills drastically? You would have about 1,7 times less torque than in 14/14 setup. I know that sizing is for speed and I am wondering i...

Mounted as seen on picture, it will stick out nearly 150mm to one side. That "side mount" would be doable with less protrusion if motor sits above rear wheel, well behind seatpost to clear rear frame arm. Making mounts to withstand the motor torque is a challenge as the motor will sit too far away f...

yep, mee too, the chain without the standard front derailleur jumps sideways, but with two front chainring it is difficult to build a good chain tensioner because the chain needs to move up and down and left and ride to follow the gearings . I built a handmade prototype version, testing will came s...

Great work with the mount! Nearing the motor to the crack requires to pay attention to two things: do not make the engine the lowest thing after the bike wheels (like the bafang) hitting a rocks with the motor may damage it limiting the chainring size I would append to this list: driving sprocket (c...

Thanks. At the front/lower corner is M10 hole for tensioner swingarm. CAD picture has swingarm covering that hole. 3x M6 holes for (future) chain guard. At the bottom, 2x counterbored holes (for M8) on both sides for support block connecting both mounts together, reinforcing against lateral forces. ...

I got fed up with motor chain tensioner, so I designed my own. With new motor mounts to install one. CAD: Cyclone assembly.JPG Mounts designed around 150x10mm 6063 aluminum bar As you can see from cad, left side mount cuts into motor shell. Well, it's supposed to: 20180325_105737.jpg Mounts complete...

Which sensor did you order - 150 or 200 one?

Thanks for helping to clear that.

Now another one - seems like the price difference between ordering one and ten PCB's can be up to five times.
So reasonable would be to cooperate (maybe even with parts). Anyone interested in taking this on?

Any suggestions for replacing, it's out of Digikey stock:
supply cap 270uF 3 565-4018-ND ?
Is ripple current important or are the basic parameters enough (capacitance, voltage and dimensions)?

BTW, ACS770-150B is pretty hard to find from other shops (Digikey stocks 2+k)

I got ACS Crossfire Freewheel from ebay. So far it has not blown up.

DingusMcGee wrote: ↑

Feb 06, 2018 8:22 am

To begin with the above assertion by minimum is false. Thru bolts do add stiffness to the floppy hinge setup in which the motor is fastened to the motor frame side plates.

I thought we were talking about stock ("new style") cyclone mounts.
On your mounts the difference is obvious.