Search results

Date Relevance Most replies

  1. McDesign

    New EV Profiler; a rentable driving analyzer

    Just saw this product http://www.123evp.com/Home.aspx in GizMag this AM; realized the company is in Atlanta, called and ordered one. Basically, it's a device that looks like a radar detector, that you rent from an auto dealer or from the manufacturer. You stick it to your windshield, plug it...
  2. McDesign

    Generating power from children - like the Matrix

    My 11-year-old son has been really intent upon trying to generate power from muscle energy, and we noodled this up this weekend. We went to our local "Repairers of the Breech" store this AM, and found an old exercise bike for like $5.62 with tax; then to Wal-Mart for a ~$30.00, 400W inverter...
  3. McDesign

    Honda Accord build - starting now

    Okay - I've been learning tons here, and playing with e-scooter and e-bike hacks for the kids to get my feet wet. Y'all convinced me that my good 'ol truck was a bad candidate for an E-vehicle commuter - too heavy for the range I needed. I traded my brother a push-mower (not even...
  4. McDesign

    Aliens in my eggs

    Didn't Skynet become self-aware a few weeks ago? They've been waiting . . . Forrest
  5. McDesign

    Double Marathon . . . sorta?

    Over Friday night, 7 PM to 7 AM Saturday morning, I walked 53 miles continuously for the local American Cancer Society Relay. I was a relay team - me no share! Nobody else walked more than a few hours - I won the only award - "Most Inspirational Walker". Started out at a 12-minute mile pace...
  6. McDesign

    Dinnertime Superhero game with the kids

    So, at dinner when we all finally sit down together, maybe Sat or Sun night, we've come up with this - kids are 7, 10, and 13. You have to imagine a superhero whose name is a pun, and also assign his powers or characteristics. Jittery, erratic Haphazard Lee's main weapon is his ADHD ability to...
  7. McDesign

    Cheap no-machining jackshaft

    I had an interesting idea this weekend as I bemoaned my lack of a lathe. I've had success making good, durable power by over-volting 250W brushed motors. But, it's hard to deal with the resultant 5000-6500 rpm when we're limited to an 11-90 maximum reduction (plus those 11t sprockets are...
  8. McDesign

    "Tripod" Scooter Bike Concept

    So - I'm new at this - bear with me! I've made a couple of modified stand-up scooters, and a friction-drive bike (various threads posted here). I like characteristics of each, and wanted to sort of combine them for my next experiment. Here's a concept I'm calling "TriPod". Legally, in...
  9. McDesign

    Interesting 3-SP Transmission

    I've ordered a couple of these little 3-speed transmissions to experiment with on a trike project. They have an aluminum case, and were originally designed for a wheel assist on a push lawn mower. I plan to input a max of 6000 rpm, and put a 25t sprocket on one axle (removing the other)...
  10. McDesign

    FrictionFast Bike project

    I'm starting this little project, since I've got all the pieces. The goal is to make a legal, bolt-on addition to a kid's bike - in this case my daughters 26" wheel mountain bike. Georgia allows 500 W and still calls it a bike - so twin 250W permanant magnet brushed motors. The thought is...
  11. McDesign

    Need E-truck concept advice - newbie

    So - I'm having great fun with little PM motors and making scooters and go-carts for the kids. I'm trying to hit 50 on "mine" with six Chinese 250W motors, twelve SLAs, an AllTrax controller, and a simple fairing. Anyway - I have a great personal app. for an electric vehicle for me, for two...
  12. McDesign

    (2) 24V chargers work as a 48-V charger

    Just sayin, I spliced two cheap Chinese 24V 1.6A chargers together in series to charge a 48-V SLA battery pack (8 X 6V/12AH), and it works fine - they end the sequence at the same time and go into float (flashing alternately red/green after ~8-10 hours. I ran it by the electronics engineer here...
  13. McDesign

    Lab equiment score!

    Lab clean-out at work here; sealed bids - here's what I won - Clark-Hess #255 digital V/A/Wattmeter; Tektronix #2245A 100 Mhz ‘scope; Harrison Labs #6267A 36V/10A DC Power supply; Grieve LR270C lab oven. Woo-hoo! Forrest - Transitioning my shop from woodwork (ex-general...
  14. McDesign

    ~Free cooling fins for non-hub motor

    I've been reading here, and it seems that a consistant problem with the small brushed motors is overheating. I work with thermal management in my real life, so here's what I'm going to try. First, I'll put the motors in the airstream (on top of the front wheels, in this specific application)...
  15. McDesign

    Off-Topic - Why I haven't inventoried the score

    So - I've promised to inventory and give info and prices on the big scooter store score I mentioned elsewhere - I'm slow on it, because of THIS kid project - supposed to be a summer project, but school just started, so I had to get on it. Background is I always wanted a big slide off the kids'...
  16. McDesign

    SCORE!!!! Craigslist find

    well - gonna' have to modify my plan for the kids trikes, slightly. Now I'm thinkin a couple of eighteen-wheelers, with a motor and controller for every wheel - I've got enough stuff. All one big score today totally filled my pick-up - anyone see anything they need? I really only need part...
  17. McDesign

    Any of these SLAs useful as Budget EV batteries?

    I can get these essentially free - are they worthwhile for budget builds? Forrest
  18. McDesign

    Introducing myself

    Hello to all. I joined the site this morning after recommendations while reading Matthew Slinn's wonderful Build Your Own Electric Bicycle. My son presented me with the Amazon box when I got home yesterday afternoon, and I finished the book a bit after two this morning - exciting reading! My...
Back
Top