SPEEDBOARD - $23k on Kickstarter in one day

how do you avoid wheelbite while heavy turns?

And what holds the axial load inside the bar linkages?

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@b264 @yelnats8j
So disappointed none of you did it
for
tenor

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Looks awesome! And not too hard to DIY I guess.

Suspension??

Too expensive for me to buy, but the price is on point, would be down for Chase tho…

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I’m impressed great job!
You’ve managed to reduce rolling resistance without using hard wheels
that’s impressive.

now Electric skateboards (if we’re calling it that) really seem superior to scooters in almost all aspects.

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+1 on this

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It’s likely because there isn’t enough force to turn the wheel hard enough during normal usage. You are leaning and the spring is doing it’s job keeping the wheel where it needs to be

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Yeah I’ve been looking at the DaveGA, would love to integrate that for the odometer function alone. Would be really easy to mount it in a window in the polycarbonate deck.

I plan on having upgrade remote options, the problem with having one standard is everyone prefers different remotes. Hoyt just sent me a puck, I’ll test that out in a few days.

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Honestly looking at how Kickstarter is progressing now, if I’d lined up suppliers for high-volume production it would have been a complete waste of time. The product is already 95% developed, it just needs one further design revision to be ready for production.

The purpose of Kickstarter for me is to accurately judge the size of the market so I can tailor the product to fit that market size. It’s impossible to judge how many people are going to actually buy a product. So many companies go under by overestimating the market size.

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We are planning on developing foot straps. We have a knobby tire option as well, and different sprocket options, these would be easy to show on Kickstarter, great idea.

Significantly larger tires will require a different scale for the steering arms, but that’ll happen in the future. Ultimately I want a speedboard I can rip around on sand dunes with. That’s definitely even more niche than this version.

I’m going to develop a race speedboard, aiming for 9 kW continuous, 15 kW peak, with a disk brake on the front wheel, so you nailed it. Obviously this’ll be a more expensive limited model initially, and an R&D project to electronically integrate the front brake.

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There will be adjustable stops on the production board, I just didn’t bother with the prototype. The tire only rubs at extremely low speed, full-lock turns (obviously), but it is something to prevent in production.

The arms pivot on high-load dry-lubricated bushings. The pins are 18-8 stainless steel shoulder bolts, with a shear strength that could hold an elephant.

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This is definitely coming on a future model. I was hoping to raise enough to develop it in parallel with the current version, and offer Kickstarter backers the opportunity to upgrade to the full-suspension model before they take delivery, but it doesn’t look like I’ll get there. I will have a 6000 watt 8083 motor upgrade option though. I may include that as an extra tier.

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Thank you for saying that, I wish it could be cheaper but it’s really a premium board. The next board I make will be significantly cheaper, aiming for $999-$1299. Smaller, lighter, more portable.

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Thank you! Really proud of the board. Those tires are so amazing, endless grip on pavement, and we followed some OneWheel XR riders up a steep, winding, bumpy, dirt & gravel fire road last night no problem. May not be as fast as a lot of the DIY setups, but so incredibly versatile.

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Exactly, under 99.9% of riding situations the tire is nowhere near the steering arms. I’ve only had it rub during extremely tight, slow turns. Mainly just when making a u-turn.

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What’s questionable about the construction? All the cells are spot-welded together into four 13s1p packs to keep them at 99 Wh, under the 100 Wh TSA/FAA limit. Balance leads soldered on, and the whole pack is wrapped in heavy-duty shrink tubing. That’s also one of the reasons I chose those cells, though I did order them in November 2017 so there are far more options available now. Plus, they put out 25 amps continuous.

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It looks like there is only 1 nickle strip of <10mm…even if those are 0.2mm strips, they are still only good for maximum 10A…

Okay, the bushings take the stress in driving direction. But who takes the forces in vertical direction? They are the big forces…

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My only comment on the battery is they have no isolation between each cell, we had a few board catch fire due to the lack of that, that’s why most people here encourage the use of fish paper between P groups

Since you are selling the place friendly point, you could do a PCB for each 10S1P batteries, connectors on the PCB and a case around the rest, the PCB with the connector would be one side on the box, similar how Hoyt does

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Which one of you wrote this article?

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