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  1. def215

    interesting bicycle gearbox

    i hope this hasnt been posted here yet or else i would just be redundant. :roll: but i saw this bicycle gearbox on instructables.com and thought it was pretty interesting. here is the link to the build: http://www.instructables.com/id/transparent-gearbox-on-a-homemade-bicycle/ i thought it...
  2. def215

    audi r8 e-tron sets world record on nurburgring

    not sure if this is a repost since nothing came up in the search. if it is, mods can delete this. but i came across this article: http://www.enginetechnologyinternational.com/news.php?NewsID=41200 from the article: i thought it was pretty cool that there are EV's running around the...
  3. def215

    axial flux motor?

    hi guys. i thought i post this in here because it is motor technology. so here the deal. i thought id experiment with axial flux motors and challenge myself to put a motor together and have it be able to work at the least. so i started playing with some scrap metal and some nuts and bolts to see...
  4. def215

    virus on laptop? any computer savvy people here?

    so ive been having issues with my laptop this week and it caused me to reboot my laptop 2 times in one week. so heres whats going on. my laptop took a crap on me out of nowhere. the whole c drive couldnt be accessed and none of the documents or programs would show up. so i rebooted it to see...
  5. def215

    my non-EV project

    well i know some might not like this because its not an electric, so if not, dont read on. there are some things that my ebike and e-scooter cant do, and this fills that void. i thought i share this also, because i thought the car guys here might enjoy this too. :D so during the summer, i...
  6. def215

    rc motor on ebike controller issues

    well heres what is going on. im running my rc motor off of an ebike controller, which is an ebay 250w 24v controller that icame from china. i fitted halls to the motor at 120 degrees internally and it works. but the problem is that it will cut off if you go higher than 1/4 throttle. has anyone...
  7. def215

    man vs wild starting fire with li-ion battery

    i just watched this video and thought it was pretty cool. a li-ion fire that serves a purpose. :twisted: 7gZ8FHEUCl8
  8. def215

    ebike brushless controller running a rc motor?

    my question is how hard would it be to get an rc motor to run off of an ebike controller? ive been looking through threads by jeremy harris, thud, and others that have done this and im trying to gather info on how to do this since i keep blowing up rc controllers. :roll: i know i would have to...
  9. def215

    damage to lipo pack

    so long story short, i crashed my electric scooter because my controller went buck wild. after assessing damage to myself, i assessed the damage to the scooter and noticed there was an indentation in the side of my lipo pack. here is a picture of the damage: (sorry, it might be a crappy pic...
  10. def215

    another bmx build(friction drive)

    here are some pics of the latest build i put together for my older brother. i let him ride my little rc-powered kick scooter and he liked it, so he asked me if i could throw one of these motors on a bike for him so i did. :mrgreen: : the bike is a dyno gt from the early 90's i believe. the...
  11. def215

    went on a ride and found this:

    i saw an EV charging station near where i live. i thought it was pretty cool because ive never seen one before and i thought i share this with you folks on ES. :mrgreen: too bad nothing that i own can use one of these though. :lol:
  12. def215

    help with brushless rc setup

    i ran into a problem today. while taking a ride today, my setup was working flawlessly. then all of the sudden it went berzerk and stopped working correctly. i was hoping someone could chime in and shed some light on my problem. my setup is: -exceed brushless monsterpower 46 (50-55 670kv)...
  13. def215

    rc motor drag?

    a question for anyone who knows rc well. i was wondering does rc motors have a significant amount of drag when it is powered on? this is the first time ive really messed with brushless rc motors so im not sure if there is something wrong or not. im running a exceed monster power 46 with a...
  14. def215

    FS MTB RC FD

  15. def215

    psu for battery charging?

    i am looking for a psu for charging my lithium pack(7s konion) . i read that a lot of you guys on here are using the meanwell 350-24v to charge your 6s lipo with success. i want to get a meanwell, but i dont want a 350-24v unit, because its rather large. i was looking on ebay, and im seeing the...
  16. def215

    ypedal, youre not the only one going gas power!

    ive also went gas powered in a way, well not gasoline but LPG. ive been holding off this project for a while and i really wanted this one to happen, so i did research on this and this creation is born. its a goped supersport with a lehr propane engine on it. thought id share this with you guys...
  17. def215

    such a badass driver...

    ive been following all of the ken block gymkhana videos and this one is one of his best. 4TshFWSsrn8 while we're at it, how bout we start a thread of all auto-x and gymkhana videos? heres some more: _a3tbp25PtM and this h9UVV0XuiDk i know these vids are old, but thats some good driving. :D
  18. def215

    went to school today...

    and today during my transfer orientation at school today, i finally declared a major, which is electrical engineering. so for the next few years, ill be hitting the books pretty hard. :mrgreen: i thought i share this with you guys on ES since you guys were sort of one of my influences on why i...
  19. def215

    ebikes gaining popularity around me?

    so the other day, i was on a popular social networking site while one of my friends sent me a link to a website to a local ebike store around my area. heres the link, http://www.phillyew.com/index.html. i didnt even know there was a market for them around where im from, but they are still a hike...
  20. def215

    Is the weather just too hot for the controller?

    I had a question for any of you guys that live in the hotter climates. So I think this is the first time I've experienced this, but this is what happened. After my new controller came in the other day, I took my bike out for a ride because I got my wattmeter to test my wattage and amperage. I...
  21. def215

    feels like a fail kinda day to me.

    so today i had a sort of fail day. so it started off as a day off from work so i decide ill go to my LBS to get some new tires for my e-bike since the old one blew on me. at the time, i didnt have my ebike with me because i left it at my work, so i decide to use my little brothers bike that i...
  22. def215

    anyone know about the hk-010 wattmeter?

    not sure if this is in the correct section, so mods can move it accordingly. so ive been waiting for the turnigy wattmeter to go back into stock, as well as several other products like the celllog 8 and i came across this item...
  23. def215

    forgot there were other power sources other than electric

    so i was in my basement looking for some tools to do some work, and i uncovered one of my projects that ive built a few years back. i just had to pull it back out and play with it again. uFwEN9pEPRs this thing is such a death trap! i dont know what i was thinking when i built it because i was...
  24. def215

    the weather is breaking, so its time to break out the bike.

    so the weather was absolutely perfect today(last time i checked it was in the mid 50's). so i took a ride out in the city. it was pretty much great. i took pictures of random things with my bike. here are some pics that i thought would be fun: fueling myself up...lol fueling the bike up? i...
  25. def215

    motor rewinding?

    so i had a question. i opened up my motor casing to find that there was some damage to my motor windings(a brushed motor). it looks like some of the enamel came off, its not much, but its enough to bug me out. it seems the shaft has slight play from side to side on it. i am thinking about...
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