Search results

Date Relevance Most replies

  1. M

    Need help : number of pole pairs

    Hello, optional intro, background information After over a year of bargaining I was able to purchase an ebike with a broken battery (2011 - 3Element Espire). The battery and controller communicate over a proprietary canbus system. These bikes and their motor units were made in small numbers...
  2. M

    3Element E-spire, Clean Mobile BB motor

    Hi guys, It took a while, but I was able to purchase a 3Element E-spire e-bike with a bad battery. The previous owner already messed with the battery and most likely damaged the original BMS. A E-bike battery refurbishing company already told him they can not fix/help him. The bike’s controller...
  3. M

    Custom Kickbike Build (laser cut and welded frame)

    Got everything together. It was a tight fit with all the electronics and large (14S7P) battery, but it worked out. Need to finish some little things, like bleeding the brakes and putting some skateboard tape on the plywood and securing it someway. But was able to take it for a spin. Acceleration...
  4. M

    Custom Kickbike Build (laser cut and welded frame)

    Thank you for your kind words. I know the kickbikes are not so popular around here. But I wanted something different and... this is certainly different! Also, where I live ebikes can only have a PAS system, no throttle allowed. For E-steps, E-kickbikes, etc. this is different. So if I limit the...
  5. M

    Custom Kickbike Build (laser cut and welded frame)

    Thanks for your feedback. Having the bolts a bit further helps to have leverage on the clamp. It closes it a bit behind. But I'm sure it would work just as well having them closer to the axle. It is rock solid this way, but I'm sure that would work just as well. Main thing is to have a large...
  6. M

    Custom Kickbike Build (laser cut and welded frame)

    Finished painting, wel could use another coat or two, but can't wait anymore to start assembly. The pinch-plates work wonders. They axle is a snug fit on its own. Tightening the clampd own on the axle makes it rock solid. And adding the bolts on the axle makes it even more solid. This motor...
  7. M

    Custom Kickbike Build (laser cut and welded frame)

    Thought about electrolyte coating, powdercoating, .. but will most likely just paint with a decent metal primer and metal paint by hand.
  8. M

    Custom Kickbike Build (laser cut and welded frame)

    The frame is made with some standard 20x50mm square tubing for the bottom rails. Bottom rails are cut at angle to lower the pan. And the end of the rails the 10mm pinch plate is welded. On the bottom of the rails a pan is welded with 2mm steel plate. On top is also a 2mm plate for ridgity and to...
  9. M

    Custom Kickbike Build (laser cut and welded frame)

    The design was finished and I made the drawings for the parts to be laser cut from 2mm and 10mm steel plate. Heavy duty pinch mount for the hub motor (10mm) 3 parts per side, use a M10 bold to pinch on the flat axle. Rest of 2mm plate material to form the rest of the frame
  10. M

    Custom Kickbike Build (laser cut and welded frame)

    To comply with local law, I would need to kick the bike first before the throttle can be activated. After doing some research and asking on this forum, I think this should be possible using a small arduino micro computer and input from the HALL sensors. Will need to look into this further...
  11. M

    Custom Kickbike Build (laser cut and welded frame)

    The first step is always the design, I went true a few different designs and finally went with this one. I like the setup with a standard 26" mtb front wheel and a smaller 20" rear wheel. I've had some issues with my first build fitting a strong hub motor in a standard classic steel frame. So...
  12. M

    Custom Kickbike Build (laser cut and welded frame)

    Hello, I have build three ebikes so far - classic steel city bike converted with hub motor, controller and DIY 700wh battery hidden in saddle bags (stealth city use, throttle) - downhill mtb converted with BBSHD midmotor and DIY 1000wh backpack battery (for hard mtb riding, PAS+throttle) - full...
  13. M

    Acceleration - Top Speed - Torque

    Hello, Thanks for your feedback. I'm aware of the impact that it also limits power, torque and this is fine for me.
  14. M

    Cutoff throttle on standstill?

    I have updated my code/circuit, now it does multiple things. - If you stand still, the e-brake is engaged and throttle does not work - if you kick the bike into movement, the e-brake is disengaged and throttle will work but limited in speed (resistor inline) - if you kick the bike into movement...
  15. M

    Cutoff throttle on standstill?

    Hello, I'm still waiting for my wheel, but in the mean time I have developed the code using an online emulator (tinkerCAD.com). Please see schematics and my code below. I used a LED to represent the "brake signal" and a button to represent the Hall-Sensor input. If you press the button a few...
  16. M

    Acceleration - Top Speed - Torque

    I ordered a Crystalyte H 4065, I will put a resistor inline with the throttle to limit the top speed. With a switch I could bypass the resistor and open up the top speed. thanks
  17. M

    Add resistor in line with throttle to limit top speed?

    Hello, Optional intro I'm starting a new build soon (electric kickbike). I would like the option to limit the top speed to keep it road legal (27kmph, 17mph). My controller needs the optional display to do this, but I would like to keep the setup clean/simple and not use the display. If I...
  18. M

    Cutoff throttle on standstill?

    Thanks I bought a Arduino Nano V3 and a pack of different resistors and transistors. Will need to have a look to write the code for this in the required language. The biggest motivation to use Python is that it is very high level and so easy to understand and learn. Kind regards, Michiel.
  19. M

    Cutoff throttle on standstill?

    Hello, Thanks for your very helpfull reply. This does sound like a smart and doable solution. I have some experience programming (basic VBA, simple Python, ..) and have done some simple Raspberry Pi Projects (Python). I'm confident I can design the program myself. I also know what a transistor...
  20. M

    Acceleration - Top Speed - Torque

    Thank you for that explenation. It is for a kickbike, so no pedaling, no chainrings, just throttle and pushing it manually :-)
  21. M

    Upload Your Circuit Schematics & Requests Here...

    Hello, I'm looking for electronic component (or circuit if required) that engages the E-Brake cutoff (3-pin) if the bike is standing still. So you would need to move the bike a bit and then it disengages the E-brake cutoff. So only when moving can you apply the throttle. Thanks
  22. M

    Acceleration - Top Speed - Torque

    Hello, Optional intro I'm building an electric kick bike (have build three ebikes before). The controller I want to use (and already have) is limited to 48V and 40A. For motor I'm thinking a DD hub motor in a 20" rear wheel. To be road legal I'm limited to a top speed of just 17-18MPH. To make...
  23. M

    Cutoff throttle on standstill?

    Hello, I'm building an electric kickbike. Optional Intro I have build three ebikes so far. - 'stealth' oldschool city bike with 2000W hub motor, custom battery/controller hidden in saddle bags - full suspension downhill MTB with BBSHD and custom 1kwh battery in backpack (offroad) - modern...
  24. M

    Opinions on AliExpress C&N 5.000W 72V 30Ah ebike

    Hello, A C&N 5.000W ebike came up for sale locally (used). According to the ad it has a rock shox front fork (not the usual DNM crap) and a 72V 30Ah battery and has only done a few hundres miles. Besides aliexpress ads however, I couldn't find much info on these bikes. No real reviews and even...
  25. M

    30MPH Commuter : BBSHD vs QS205 24*5T

    Local law in Belgium - Normal Ebike: 250W max, 25kmph max, PAS only - Speed Pedelec (fast ebike) 4000W max, 45kmph max, main purpose: PAS For a speed pedelec, you need to register the bike (license plate), wear a (bike)helmet, need a drivers license (moped or car) and if it has a throttle you...
Back
Top