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  1. teklektik

    Unable to contact ES server

    hey neptronix et al: Since last night I was unable to get to ES because of some type of connection problem. But -- I just got though so thought I'd post this up real quick-like in case I lose the connection again and this is just some weird DNS propagation or similar issue that was not...
  2. teklektik

    How To Wire a 12V Brake Light and Turn Signals

    Long story short - I originally built my bike with 12V motorcycle-style headlight/taillight/turn signals and last summer added a brake light controlled by the normal 5V ebrake signal to the controller. This last addition was to become a post my build thread, but it seemed that a new thread about...
  3. teklektik

    Cheap CA Data Logging with Phone or PC

    How to Log Cycle Analyst USB Data on the Cheap One of the nice Cycle Analyst features is data logging via the serial TTL port at either a 1Hz or 5Hz rate. This capability is expanded in V3 which offers additional data columns. Although Grin Technologies offers the Cycle Analogger to log this...
  4. teklektik

    How To Spread a Tight Stem Clamp

    Here's a quickie means to spread a stem clamp that is a bit too tight: Remove the clamping screws Reinsert the screws into the opposite (threaded) side of the clamp and run them down leaving a 1/16" gap in the slot Insert a couple of pennys into the gap in the clamp and snug down the screws Use...
  5. teklektik

    A DIY Shop Tool for Making Torque Plates

    Long story short: I needed torque plates for an aluminum frame build. I wanted open plates instead of the kind with axle through-hole. I've made dropout plates before and although it's not difficult, with just hand tools for sawing and filing it's fussy time consuming work. With another build...
  6. teklektik

    Prolific Drivers for Controller Programming Cable

    A new driver installer was recently released for the Prolific PL2303 chip used in Infineon (Xie Chang) controller programming cable used by Lyen and EM3EV. There were earlier versions of this package, but this one is a fresh release. The package has drivers for these OSes: Driver Installer &...
  7. teklektik

    Motor Temperature Monitoring via Axle

    This post is about an experiment to monitor motor temperature using the motor axle instead of the windings. The idea is to get useful monitoring information without motor disassembly and pulling a new wire bundle. In this case monitoring is done with a conventional NTC 10K thermistor driving a...
  8. teklektik

    Lightweight 22mm Hub Motor Wrench for Toolkit

    I ran across this cone wrench by Park Tool that is thin and very lightweight and seems a great toolkit addition to handle hubbie nuts in the field. It's got an interesting Y-reinforced head and is long enough to deliver meaningful torque. This tool is probably a familiar item for Real Bicycle...
  9. teklektik

    Yuba Mundo BB7 Disc Brake Installation

    The base Yuba Mundo is equipped with Promax v-brakes with Tektro Io discs as an option – 160mm/180mm front/rear. A special 140/160mm adapter is required to mount the rear 180mm caliper due to a non-standard placement of the rear disc caliper mounting tabs. The adapter is part of the disc...
  10. teklektik

    DIY BB7 Brake Adjuster Tool

    Upgrading my Yuba Mundo to disc brakes, I opted for mechanical BB7's that get great reviews for ease of adjustment except for the inside adjuster wheel. Starting with the front wheel, the brake kit went on easily but I quickly ran into a clearance issue with the inside adjuster - the BMC motor...
  11. teklektik

    2WD Electric Yuba Mundo Build

    Last year I began my first build, a 2WD electric Yuba Mundo cargo bike with a relatively low power (1.7-2.4KW). The plan is to build the bike in stages: get a pretty complete bike on the road, experiment a bit with battery configurations, then finalize the battery enclosures. Stock Mundo...
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