Recent content by NyOliver

Here. I showed the data where a longboard wheel has good characteristics with polished steel also. The coefficient of friction is a known and subject to dispute.

Boosted switched from liFe? Seems like they took on a lot of risk without very much benefit since they didn't increase the size of the battery.

How do you like jbweld for the tabs now? Do you have any pictures of this rig? Thanks

I do agree that, talk is so much wind, real world results is where the urethane hits the road. I'll could make it, why don't you give me some incentive? You name the parameter of a design test, I'll let you know, if I think i can do it, and my small fee for the effort and video demo. You're...

Ok, would love to see video of you pushing at 23mph for even 3 min, You lost all credibility with me on that. 8-10 mph measured MPH is squarely in the design envelope range of scooters, hoverboards, under $400. ( technically most of those are listed at 13 and over as well. ) And it's actually...

I used a design envelope, and you do not fit it. You're not 8 to 12-year-old under 100 pounds. And I specifically mentioned that a kid should be able to run out Whatever top speed the board goes. You're an adult, not a kid, why would you want to fit in this design envelope? It's like saying...

Friction Chart. Urethane, which is what skateboard wheels are made of, is such an appropriate material for friction drive that it is used for friction drive. Pushing around paper, metal rollers, plastic etc. and in case it's not obvious, the duro, we use for longboard wheels is just dandy for...

You said "bad idea", "no traction", and "melt the urethane". Despite what you're saying now, clearly you said it would not work. I'm glad you said you had no experience and were imagining it but, your imagination is wrong. Laugh all you want. Edit: it's just really sad when somebody with zero...

It's slightly less, but not in any meaningful way, considering it's stated as an approximation. For every single revolution of the motor, The wheel moves 9.4mm, and if you know the circumference of an 83mm wheel, how many times does the motor need to turn to make one revolution of the wheel.

Maybe you missed this. The gear ratio is around 30 to 1 If you use an 83 mm wheel, it makes sense for you to understand what's going on before you say something won't work.

You're wrong, I have no desire to make something for who's under 80 pounds but, it's definitely workable and you don't seem to understand gearing very well. Is a great from a dead stop, duh, NO. But much of can be done with only a few tens of watts. It's not spinning at the same place, so...

Welcome back!

Does nobody ever read anything? Or am I really sucky at communicating? I'm pretty sure there's no ambiguity in "direct Drive, the shaft presses against the wheel." Also, I provided the calculations for you in graphic form. 1:1 drive use any wheel size the speed is the same. The engineering...

http://www.banggood.com/Racerstar-F540-Waterproof-Brushless-Motor-45A-ESC-For-110-Buggy-Racing-Cars-p-1056319.html?rmmds=detail-left-viewhistory This would work as well for a super budget build. You don't have a lot of friction area, so it can (and should) slip under severe use, however that...

You would prefer 6s or better. for a conventional belted geared setup. http://www.banggood.com/Racerstar-4076-Brushless-Waterproof-Sensorless-Motor-2000KV-120A-ESC-18-Cars-RC-Car-Parts-p-1080781.html?rmmds=search This would be run as a direct drive, no belts, the motor shaft simply presses on...