Search results

Date Relevance Most replies

  1. D

    Eliminating Squat at Startup

    Squat motion refers to the unweighting, sag and compression of the rear triangle of an FSR bike during startup or just accelerations. This unweighting feels like the rear tire is being lifted off the ground and such forces can lead to breaking traction at startup — a no, no. The position of...
  2. D

    Myth Busting

    ES Myth: to make a turn you must first turn in the other direction. Evidence counter to this Myth: Experience: the preponderance of my edirtbike riding terrain is sidehill riding on sometimes steep narrow trails. These trails are not like the well groomed paths you will find on typical Mt...
  3. D

    The age of cheap Chinese stuff is ending in the USA? [includes politics, but shouldn't]

    Elon musk is a pig at the public trough….. And likely selling defense secrets to China….
  4. D

    best ac dc converter

    In general RV products IOTA makes a very good AC to 12VDC converter/charger55 amps. The owner of Boat and Rv Accessories told me this brand had the least returns ( for fixing or failure). To get higher DC than 12v you run the 12v thru an (adjustable) boost converter. Search boost converters on...
  5. D

    QS Motor Torque Wattage curve

    Good luck with all the ebike simulators in the world. If you want the QS 2000 & QS 3000 & QS 4000 varieties of mid-drive motors to perform MAXX you will have to have a controller that lets you change some PID settings. On a Fardriver 9 …. SERIES controllers(not the racing series) the...
  6. D

    [USA] Will Tariffs come about and lead to higher priced ebike parts

    Our president elect has promised high tariffs on imports. Say these come about within 3 months of his inauguration. We do have some time to get our purchases before $$$ go up. I just got a Black Friday offer from SIAECOSYS QS motors. See: SiAECOSYS Electric Powertrain Store - Amazing...
  7. D

    For sale 2002 Kawasaki kx 100 QS 3000 V3 Fardriver ND96350

    For Sale: my 2002 Kawasaki kx100 motorcycle eMotor conversion See the build thread: Kx100 x QS3000 V3 x Fardriver ND96350 x LiPo28s 20Ahr" Not included in this sale but shown in the build-thread are the LiPo batteries, the CycleAnalyst and the mirror. Other new items on it are 2 new tires...
  8. D

    SOLD. For Sale: SIA QS 4000w V3 motor

    @gobi See: http://www.qs-motor.com/product/qs138-90h-v3-mid-drive-motor-with-internal-gears/
  9. D

    SOLD. For Sale: SIA QS 4000w V3 motor

    @dirtyrider9323 Yes. Sorry for the delayed response.
  10. D

    Shelf live of Silicone (RTV) after opening

    I store my RTV sealant in the freezer — it stays good for years with the cap on the tube and no holes in the tube.
  11. D

    SOLD. For Sale: SIA QS 4000w V3 motor

    For Sale: new SIA QS 4000w V3 motor. The motor has been bench tested and it works fine. For a MC conversion I bought both the QS 3000v3 and the QS 4000 v3. The QS 3000 was simple drop-in job. Cost $350 plus cost of shipping and insurance. If interested PM me.
  12. D

    Fardriver ND72260 Inconsistent Throttle from 0 RPM

    ManicMods, The manual: http://www.siaecosys.com/upfile/202108/2021083051492073.pdf The PID parameter table: PID parameter settings 4, 5 & 6 cannot be changed with the Fardriver App. They are the controller’s ROM to this App. Settings 1, 2 & 3 are the parameters of the integration...
  13. D

    Fardriver ND72260 Inconsistent Throttle from 0 RPM

    Manic mods, Not all BLDC motors will work properly with just any Fardriver PID parameters or those assigned by default to your controller. The fardriver manual lists 13 groups of PID parameters see pg41. The usual default set group 4 is called Heady Duty Motor. QS motors work excellent with...
  14. D

    Nanjing far driver controllers

    Problem with Fardriver “Login to Bind” Solved The controller will not store “save” changes in cell parameter input unless you have gotten their code number and entered it at the beginning of the cell program — It turns out that I was getting the code all along via the email method as I first...
  15. D

    Nanjing far driver controllers

    The Latest SNAG in using a Fardriver Controller……….? The NEW open user Fardriver motor/controller cell program is not without major problems to US inhabitants. I have not been successful in the necessary steps needed to reset parameters on my latest Fardriver controller purchase. Without being...
  16. D

    Arduino Virtual Flywheel Throttle controller

    Sag upon releasing push button eliminated: The Fix: install a capacitor on output side of TSIM from red 5v to signal.
  17. D

    Arduino Virtual Flywheel Throttle controller

    bikerpete, The current TSIM version works when the push button is depressed and held. But upon releasing the push button, voltage drops below throttle threshold and a restart is needed. The display on the oscilloscope is upside down for positive and a triggered signal moves right to left...
  18. D

    Arduino Virtual Flywheel Throttle controller

    bikerpete, When batteries are hooked in series the voltage is the sum of each batteries voltage regardless of the voltage of each battery. So if you want to add volts, the additional (voltage source) connections have to be in series with the connections go from + TO - or - to + but never + to...
  19. D

    Arduino Virtual Flywheel Throttle controller

    We have had big snow here so no road tests. But some indoor tests worth noting. With the oscilloscope on the bike it was noted that likely the Arduino relays, when driven, often drew down the 5v throttle circuit below the active throttle threshold voltage making for a necessary throttle reset...
  20. D

    Arduino Virtual Flywheel Throttle controller

    Below is a photo of my throttle signal intercept module: The module was bench tested using USB output: 5V & 2V. Upon pushing the black button one could add from 0.0V to 1.5V ( c cell battery output adjustable with pot) to the current throttle signal. In the photo below 0.1V is added to...
  21. D

    Finding or Making an ISIS BB Spindle >>177mm overall

    @darreny , Thanks for pointing out this source for Isis spindles: hello are you still interested in getting this?. you can contact Dan he has a ISIS BB axle [spindle] of length near 177mm for sale........... PM him @ danwilson8320@gmail.com Was this spam?
  22. D

    Observed trials bike designing

    DanGT86, Likely the most difficult task for PID control is start-up. Motors are under full inertia as the system has no momentum hence, motor’s perceived inductance L can be way larger than normal. To get more torque the motor needs more amps — current. In generalized form the voltage acts...
  23. D

    Observed trials bike designing

    bikerpete, presently a very quick twist of the throttle seems to result in too much torque to the wheel. No problem with the controller’s potential, yet. Changing the PID parameters made a big difference in torque rise rate. I have not measured momentum change for 0.1 sec but have most of...
  24. D

    Observed trials bike designing

    Speedmd, The lift (front tire unweighting) begins as soon as the squat begins but the lift is a stiffer system so not much motion is felt initally. The squat is described in engineering as a mass/spring/dashpot system while the lift is more akin to a pendulum system. They can be...
  25. D

    Observed trials bike designing

    @bikerpete, I did get a chance to review some of the manuals for the Nucular 24F controller. It looks like the authors were native English speakers/writers. But what a morass of items one can control with the Nucular controller that are just about worthless for an edirtbike. BTW, I did not...
Back
Top