Recent content by quuxman

Would be great if you posted more build details. I'm interested in building something equivalent.

I just found this thread. Something like this is probably the simplest solution: https://endless-sphere.com/sphere/threads/barron-greigs-throttle-remapper.107047/

Is there an analog way to mellow out a throttle without sacrificing full throttle (like adding a resistor would?). My setup is quite jumpy in the first 1/3 of the throttle, but I can't think of a way to reduce the voltage in this range without reducing full throttle. Unfortunately I do not have...

Which controller is this exactly? I'm looking for a 48v controller compatible with a Q100H motor.

What controller exactly are you using? I'm looking to upgrade the controller for my Q100H to 48V. I probably don't want to run that many watts but if I could limit the current, your controller should work great.

How do you twist off the cover? I tried putting longer bolts into the three screw holes to torque against, but the bolts just bent and the cover didn't budge at all. I'm pretty sure it's the controller overheating. It gets too hot to touch, like hot enough to fry an egg. It doesn't turn off...

I've been quite happy using my Q100H (front wheel motor) for the last few years with the controller it came with from bmsbattery.com (S06S), but now I'd like to change the controller to run on 48V. I want a new controller for 3 reasons: first I'd like to get a better battery and have it work on...

How did you get it apart? I have a Q100H front wheel motor that I wanted to disassemble for maintenance. After 2500 miles It's sounding slightly louder and feels like it's running rougher than when it was new, so maybe some cleaning and greasing is called for. I can't figure out how to get it...

I'm looking for a 48V controller for either 20 or 30 amps (depending on which motor it drives) with inputs for PAS (and throttle of course) that can be customized with a 3 way switch. I want the 3 way switch to control overall power (or speed limiter would be OK I guess) and to enable PAS. So...

Did a tiny bit more reading, and PETG (with Glycol) is actually softer and stickier than PET, but worksalot better with FDM. This means I indeed want ABS. Also I have a much updated model, now made with parametric modeling so cell configuration can be changed nearly effortlessly...

I was very close to ordering a set of N.E.S.E. modules from http://18650.lt/ but they're pretty expensive and I'd still need to make some sort of enclosure for the BMS. So I decided to build something very similar to patrickb (thanks for your post!). Here's the model I have so far: I have two...

I like this design and would like to do something similar. Could you tell me more about the springs? Where exactly did you source them? Also, what's the thickness of the acrylic (I assume) and how deep are the cell holes? What exact diameter did you make the cell holes? I'm guessing something...

This is good to hear. I've been running my Q100H at the recommended 36V and ~20A for a few years. I'm seriously considering upgrading the controllers and batteries on both my ebikes to 52 volts with programmable power limits. It would be really nice to have interchangeable parts, and a little...

While riding my local electric train with ebike on board and thinking about tradeoffs with different windings, inspiration struck. I see little reason to stick with one speed of winding. I knew the engineering must be out there, and sure enough, it's called a booster winding, and surprisingly...

Good point, I'll edit the OP subject. I don't see the point in going over 60V myself.