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  1. Masure

    3D printed a PAS wheel.

    Looks like pla
  2. Masure

    Capacitor choice validation

    Hi, I'd like to add low ESR capcitors as suggested in several topics. My setup is 6S battery with Turnigy DLUX 100A controler. I'd like to use these caps : 35V 2200uF 14mOhm http://www.digikey.fr/product-detail/fr/EEU-FR1V222/P14451-ND/2433585 Is it a good choice ? How many of them do I need...
  3. Masure

    Throttle Current/phase power control

    What kind of thing did you tailored ? I'm using your piece of code nearl as is and don't know what king of improvement could be made. Thinking of antislip/wheel speed sync for my friction drive but don't know how to start. I think a "speed follower" control would be great for my usage.
  4. Masure

    Commuter Booster - <1kg Friction Drive

    Ok i'm clearly below this point. i'm gonna modify my design to get beyond. Thanks for your advice !
  5. Masure

    Commuter Booster - <1kg Friction Drive

    Hi, I finally made my mounting bracket and did the first test with my friction drive. It's not bad for a first try but I have an issue. The motor disengages itself once the maximum speed is reached. I don't know whether the geometry or the "spring" is the cause. The spring is just an elastic...
  6. Masure

    Commuter Booster - <1kg Friction Drive

    Thanks for your advice, I managed to get a servo tester but it was a not better. Then I found the issu => too weak voltage with the power supply I used (15v) :oops:. Using my 6S battery did the trick. I'm now working on the bike mount design. I also have to perfectly understand the code. I...
  7. Masure

    [SOLVED] Trouble starting RC motor

    I found the cause and I feel like the noob I am :?. The 15v power supply I used was too weak to start the motor correctly. I tested with my 6S battery and it's starting flawlessly.
  8. Masure

    [SOLVED] Trouble starting RC motor

    I'm on making a friction drive based on : - Turnigy SK3 6364 - Turnigy Dlux 100A - Arduino and Gwhy and folken's codeto drive the controler. The motor is stuttering when i'm sending the PWM signal to the controler. If I gently retain the motor, it starts spinning normaly. SPM6TMCDjm8 Dlux...
  9. Masure

    Commuter Booster - <1kg Friction Drive

    Hi folks, I'd some help here. I plugged the motor in and it does not start by itself. It's stuttering and can start if I retain a little the can. No idea what to check. https://www.youtube.com/watch?v=SPM6TMCDjm8
  10. Masure

    Commuter Booster - <1kg Friction Drive

    Hi Folken, I did some work on your circuit and here is what I have : Soldered all the I2C interface pins to the screen in a compact block. Not so easy ! Soldered all the arduino circuit. Not easier ! The small DC DC switching convertor fits very well in the box. I recommend it. I...
  11. Masure

    Commuter Booster - <1kg Friction Drive

    Hi there, As I said, I want to replicate folken's work. Even if I understand the whole picture, I'd like a quick validation of the wiring before I go further. Notes : - 3 phase motor and dlux controller are not accurately drawn. I just put a DC motor and no controller on the diagram. I...
  12. Masure

    Commuter Booster - <1kg Friction Drive

    I ordered this regulator. I'm a bit worry to have more connections to the battery leads because I must be very clean with my assembly to prevent any shorts :). Did you make any insulation around the hall connections ? I have to buy some capacitors but no idea which values to take. I will...
  13. Masure

    Commuter Booster - <1kg Friction Drive

    Thanks for your advices. I would have directly used the 5v from DLUX ESC :). So if I try to sum up the components I have to use . Resistors : - pull down resistor from A3 input to GND - 2 resistors to make voltage divider to read Batt+ on A2 input. Capacitors : - between A2 and GND to read...
  14. Masure

    Commuter Booster - <1kg Friction Drive

    @Folken I'd like to build a friction drive with the very same electronic parts you used : arduino, hall sensor for current control, ... I have very basic electronics knowledge and I'm not able to design your circuit like you did. Looking at your pictures (the one with the box opened and your...
  15. Masure

    Return of the 3D Printed Friction Drive

    Thanks for sharing ! How do you balance the motor weight ? Do you use any kind of spring ? I noticed this on other friction drives.
  16. Masure

    Experts (or not) - do you think this will be successful?

    Does your arduino controled throttle with current sensor is reliable enough for this purpose ?
  17. Masure

    Friction drive building questions (shopping list added)

    My electronics understanding is surely not better than yours so your explanation is enough for me :). After reading here and there about RC controller, I don't want to use them. I would like to have a more reliable and out-of-the-box . I don't have knowledge and tools to fine tune such a custom...
  18. Masure

    Friction drive building questions (shopping list added)

    That yep120 looks nice but if is quite expensive ! You seem to have very good results with your build though. Same price as a lyen 9fet + e0design sensors. What did make you chose rc over ebike ?
  19. Masure

    Friction drive building questions (shopping list added)

    I am also pedaling a lot and want to boost my speed/range. I found this thread I should read after work : http://endless-sphere.com/forums/viewtopic.php?f=28&t=59828. The first posts still don't tell me if I should prefer ebike ontroler or ESC :D
  20. Masure

    Friction drive building questions (shopping list added)

    I was not aware caps were needed, thank you for the input. I can use 50V ones but should total amps cover my maximum current draw ? Which means I'd need 10 x 3,32A caps for 30A ?
  21. Masure

    Friction drive building questions (shopping list added)

    edit : 2014 10 06 => shopping list questions Hi, I recently failed with a BBS mid drive conversion because of my thick bottom bracket carbon frame. I'd like to keep it, stay light and go the custom way. I'm considering building a friction drive ! I read and learned a lot from all the thread...
  22. Masure

    New Bafang Crank-Drives

    Thanks for correcting !
  23. Masure

    New Bafang Crank-Drives

    1. True 2. You don't need the brake cutouts for the controler to work. But I would recommand it for safety. There is a brake sensor you can put with any brake lever. I don't have the shop in mind, but others can tell. 3. 22P bigger discharge rate, 29E more capacity. If you want to go hard with...
  24. Masure

    A 3D printed friction drive

    Very nice ! You talk about 10 prototypes, what kind of problem did you have with the first tries ? Would be nice if you could provide step files or anything compatible with CAD software.
  25. Masure

    GNG Drive Gen2

    What's the distance from the drive chainring plane to the bottom bracket center plane ? Same question from the reduction chainring. I'd like to know the chainring sizes that will fit my frame.
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