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  1. ferias77

    "W7" friction drive kit with rubber

    What is fechter ? I hope !
  2. ferias77

    "W7" friction drive kit with rubber

    I am looking for a friction drive kit working on the wet. "Sand paper" on the motor is creating tire wear. Rubber on the motor  seems to be a good solution. There is such a kit on Aliexpress for $278 ! Does somebody already tried this kit ...
  3. ferias77

    Front wheel Friction drive

    I used my hub motor during the winter. But now, I want to use my friction drive again, and I need it works on the wet. :wink: I think using an inline skate wheel to replace my aluminium roller. The friction should be really better, without the tire wear of the sand paper solution Dis someone...
  4. ferias77

    Front wheel Friction drive

    Thanks for your reply EngineerDog. I will try sandpaper, but as you mention it, I am worried about tire wear... The solution may be rubber on the roller... I will try to test it.
  5. ferias77

    Front wheel Friction drive

    Do you mean that you have slipping with your friction drive on the wet, even if there is a knurled roller ?
  6. ferias77

    Front wheel Friction drive

    802km with the friction drive ! I didn't have time to make the video. A photo of the complete system : Mounted on the bike : It works perfectly when it's dry. But it slips when it's wet. I have to make a knurled roller, like EVTodd... I replaced the friction drive with my Q100 hub motor...
  7. ferias77

    Front wheel Friction drive

    I try to do it asap !
  8. ferias77

    Front wheel Friction drive

    More than 500 km with my friction drive, and it still works very well. :D No visible tire wear. To be continued...
  9. ferias77

    Front wheel Friction drive

    Thanks Kepler. 100km so far with the modified S06P. To be continued... :wink: I have never done it, but I maybe will change the FET's to avoid any problem. :?
  10. ferias77

    Front wheel Friction drive

    Yeah EVTodd, I begin to understand why you like your friction drive so much. :wink: I made 207 km with my friction drive : 30.5 km/h average and 6.4 Wh/km. Motor and controler stay barely warm. I have modified my S06P controler : 23A max instead of 14... :D I will test it the evening, for my...
  11. ferias77

    Front wheel Friction drive

    I made the first km with my friction drive this morning ! :D No sliping between the roller and the tire. Now I have to test it under the rain. The roller engages in the tire when actionning the thumb throttle I commuted with it to go to work this morning : 22km, 30.1 km/h average and 6.5...
  12. ferias77

    Front wheel Friction drive

    The system is assembled : And mounted on the bike : Now, I have to add a spring loading the roller off the tire in the off position, and a endstop for the off position. And finally, to test it !!!!! :D
  13. ferias77

    Front wheel Friction drive

    After a few holidays, the project continues... I made a little design error in my CAD model... So I had to modify the parts... but now it's OK. :) The bracket is mounted on the bike : All is very rigid. :D Now I am making the swing arm and enstops. With my design, the maximum...
  14. ferias77

    Front wheel Friction drive

    Yes, I don't know how I will do it, but I will add it ! I began machining the parts of the friction drive :
  15. ferias77

    Front wheel Friction drive

    My only concern about this design is the stiffness of the fork attachment. The aluminium part on the left is to prevent the rotation of the system. And the aluminium part on the right can be rigged with washers to fit the geometry. With only one aluminium part, it is impossible to have both...
  16. ferias77

    Front wheel Friction drive

    Thanks for your reply spinningmagnets. :D Now I am waiting for the aluminium for the bracket !
  17. ferias77

    Front wheel Friction drive

    I would like to try a friction drive on my recumbent. At the moment, I use a Q100 36V 328RPM with a KU63 controler and a 48V 10Ah battery. But I would like to try something different and lighter. My recumbent with the Q100 : I made 30 000 km with this motor. The controler is under the seat and...
  18. ferias77

    Commuter Booster - <1kg Friction Drive

    Tanks for your reply Kepler. I will stay with 7S, and try to upgrade the S06P to 20A.
  19. ferias77

    Commuter Booster - <1kg Friction Drive

    Hi everybody, I tried a "commuter booster copy" 3 years ago on a folding bike. I had tire wear problems... but I think my setup was not correct. I would like to retry it on my recumbent bike. I have a Turnigy Aerodrive SK3 - 6354-260kv ...
  20. ferias77

    Regenerative brake using friction drive

    Thanks Adrian. :)
  21. ferias77

    Regenerative brake using friction drive

    Thanks for your reply Adrian. Could you explain how to hack the current sense circuit, in order to have variable regen ? Do you have an example ? I am looking for a 48V sensorless controler with variable regen... but I don't find. So I will have to make the modification you propose.
  22. ferias77

    Regenerative brake using friction drive

    Thanks for your replies. :) I will try it with a regenerative controler and give the results shortly. bobc, if you try with a bridge rectifier, I am interested in your results. :D
  23. ferias77

    Regenerative brake using friction drive

    Hello everybody, I use a freewheel geared motor on my recumbent (Q100). I am very happy with it : very light, no speed limit during the hills and I don't feel the motor if I use the bike only pedalling. But I would like to have regenerative braking for big downslopes : my discbrakes become...
  24. ferias77

    ku65 running 50v

    No, my KU63 is the 36V version : 36V controller and Q100 36V 328 RPM. Your battery is a lipo 14S battery, so 58.8V max ? Could you verify if the capacitors are 50V too ? If it is ok, I will try with a lipo 13S battery ! I guess you wanted to write 50V ?
  25. ferias77

    ku65 running 50v

    Hi, I have a KU63 on my bike. The capacitors are 50V 47µF and 50V 470 µF. I use it with a 12S lipo battery (50.4V charged) and it works very well. I have made 2 400 km on 10S and 4 000 km on 12S with it. Now I want to use a 13S battery : 54.6V charged. I will try, but capacitors will maybe blow...
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