41–50 of 100 posts
50km/h is suicide. ps: anybody here owns a gyrowheel ?
If you're worried about scrapes throw on a motorcycle jacket. But if you know how to fall, 40-50km/h is manageable without gear -- aside from the mandatory helmet.
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Sure, you can easily wear a GPS watch while longboarding.
Yeah I wasn’t asking hypothetically. I wanted to know what they actually used to record their speed.
http://www.lifehacker.co.uk/2015/10/27/the-lancaster-gps-spe...
It's fantastic, and the creator/designer is a great guy who is open to helping out tinkerers.
It's one of the cheapest off-the-shelf ways to move a bigger hobbyist motor with encoder support that I've found. Nothing but love for it.
Very cool but the original board was never designed to go at such speeds. I suspect you'll ruin the wheels fairly quickly, not to mention you might lose control at high speed fairly fast. I'm not a skateboarder myself, but I've moded some bikes and adding speed is the easiest part, making it useful speed is way harder. Also, I hope the engine can go in reverse or this guy has no breaking power; and as he gets comfort…
Small nit, there are motors out there that offer resistance/braking without reversibility.
that's scary as hell considering the battery is likely to take physical abuse. Look at the number of fire incidents caused by drone LiPo charging. There's a reason why serious drone enthusiasts charge their batteries in special battery bags.
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But then you get speed wobbles... https://imgur.com/auUscXX
What you're talking about is yaw inertia, and as another comment points out it's solved by moving the weight to the front wheels. See an explanation here: https://en.wikipedia.org/wiki/Automobile_handling#Yaw_and_pi... And a 30 second visualistion here: https://www.youtube.com/watch?v=4jk9H5AB4lM
50km/h is suicide. ps: anybody here owns a gyrowheel ?
the donor board section is just the battery section duplicated. you're also missing a really important piece (that I actually don't know anything about re li-po/li-on but do know something about re deep cycle lead-acid) which is the charge controller (i.e. the thing that prevents your battery from blowing up and maiming you).
Pleasantly, good speed controllers already have low-voltage cutoffs. VESC has it, for instance. I believe it’s configurable for cell count, sag, etc.
Earlier quoted context omitted.
Sure, you can easily wear a GPS watch while longboarding.
Yeah I wasn’t asking hypothetically. I wanted to know what they actually used to record their speed.