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  1. Vbruun

    ERider torque sensor

    I have a bike equipped with an eRider torque sensor. When I supply the sensor with 12v, I read 3,2v from the trottle output. It should normally read 1,5v at rest and 3v at film torque. Any idea why? Is it dead ?
  2. Vbruun

    Bosch performance line adding halls

    My friend and I have been working on modifying the bosch gen 2 motors to accept a VESC as the controller to be able to run third party batteries and remove the speed limit. For their size, the bosch motors are pretty stout and will run all day @30 phase amps, 20 batt amps and 36v, making them a...
  3. Vbruun

    Circuit board repair

    While installing the open source firmware for KT controllers on my bike, I made an oopsie. I somehow broke one of the eyelets on the board - maybe too much heat? The Damage is here https://ibb.co/fppDRQd The Black Hole should have also been an eyelet. The board is potted so I can't access...
  4. Vbruun

    Ebike functionality with VESC controller

    Hi I am running a VESC controller on a Bosch mid-drive motor. I would really like sine european style e-bike functionality. I would like an external speed sensor and PAS functionality for use with a torque sensor. Is there a known way to inplement these things on the controller? I really...
  5. Vbruun

    cute Q100 casette width

    Hi Does anyone know if the q100 will take a 10 speed casette?
  6. Vbruun

    controller for torque sensing BB

    Hi I have a converted bike, that I would really like to add a torque sensor to. I think the feel is highly superior to that of a PAS bike. I can buy a torque sensing BB from aliexpress, it seems that they generally work by outputting a voltage between 1,5 and 4 volts depending on the torque...
  7. Vbruun

    Where can I buy very large heat shrink tubing?

    Hi all I´ve made a battery for my ebike. I'm thrilled about it, but I would like to wrap it in some nice PVC tubing to make it even more awesome. The thing is, I need 550 - preferable 600 mm heat shrink tubing to go around the one side. I just can't find it anywhere! Does anyone know where I...
  8. Vbruun

    13s7p battery pack build

    Hi This is my first battery build. I Will share the progress here on endless sphere. The battery Will be used on a moderatly powered bike, drawing 250w average, 900 w max. IT Will be made from samsung 29e cells and use an LTT smart BMS. https://imgur.com/a/pzPnp8c This is the cells put in...
  9. Vbruun

    13s charger for low SOC charging

    Hello I recently posted about which vendor I should buy a battery from on aliexpress. The answers were honestly a bit dsicouraging, so I decided to build it with help from a friend. It will be a 13s7p battery made from samsung 29E cells spotwelded together and regulated by an LTT BMS. The...
  10. Vbruun

    Advice on premade battery pack

    Hello I have got an older cargo bike, a "Long John" that i have modified to fit a bafang swxk front wheel motor coupled with a 20a PAS activated controller. IT is currently fed by a 36v LiFePO4 battery pack. The front wheel is however only 20" and the swxk is a slow wound motor so the bike...
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