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    24kW stand-up scooter with air suspension

    I just saw this scooter on Youtube. respect!! it will take me a while tho go through all posts but its worth it. CONGRATS to this awesome project.
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    Electric Surf Board

    Propane gas is a good idea!! I saw a conversion of a small motorbike with a "gas-bottle". It's not impossible. From cars I know the combustion is hotter and puts stress on the engine. but that could be solved, I guess.
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    Electric Surf Board

    I live in Shenzhen and can contact him his board looks like it has some serious power. @ropower86 I saw your post about using a gasoline engine :D
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    Electric Hydrofoil/E-Foil

    @notafraidtotry your project looks cool! pls post some results here. one thing though... I think your 3D printed wings should have not been split like that. they should have an overlap of 10-15cm (otherwise its too much stress in the split area) curious about the progress (especially the 3D...
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    Electric Hydrofoil/E-Foil

    how/where can I find an "efficient" jet drive? and how much less efficient are they compared to impellers? edit: for an impeller, would it make sense to rewind a motor to have less RPM?
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    Electric Hydrofoil/E-Foil

    many times they put (non-exiting) products online to see the customer feedback. even show it ready to order. but will just produce it when enough people buy it. 2000-3000$ an other supplier...
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    Electric Hydrofoil/E-Foil

    what about a jet engine? high RPM and no need for gear reduction. I think that every additional part eats up efficiency. would a jet be better? (longer runtime?)
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    Electric Surf Board

    the "problem" with the price is, you need MOULDS for every part you see on that picture. these moulds are CNCd from steel (sometimes Aluminum) and they cost thousands of dollars. that means, they need to add the mould cost on their product too. also they have to ship things from China, pay tax...
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    Electric Surf Board

    looks like we have a pricetag for the Lift foils. 12000,-
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    Electric Surf Board

    I saw, that Onean started to deliver their boards. that´s an interesting product. maybe more videos will appear on youtube now. https://youtu.be/JHh4pk25V5I
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    JET BOARD PROJECT

    there's plenty of research. you should go on YouTube and watch everything, what floats and has an electric drive. get all numbers available. (power, speed, weight) whatever you can find. then you should have a rough guess of what your vehicle will need. also check engines with gasoline. once...
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    Hydrofoil GF09

    the GF09 (girlfriend#9?) doesn't seem to be efficient. the graph DOES show a decrease of power-consumption, once the boat is out the water. but after that it shows a similar graph(shape) as before the lift off. I would have thought the graph after lift-off should be more flat?? in fact it is...
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    Landwheel and Yave -- Another Mellowboard look-alike

    2 backers in 49 days... and some discussions on Instagramm. I will get a board next week from the supplier. they claim its better than the one from Onan.
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    Carbon Jet Spud / Freebord Bindings / 10S3P

    thats niiiiice!!!! awesome build. thanks for sharing all steps and taking your time to do such wonderful pictures. this pic reminds me of a Katana, japanese sword.
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    Electric Booster...MELLOW clone from China

    salut le mec! I go to Bordeaux. lets see, maybe we do a detour by the south!! for your other project, theres still one month time. contact me. if I make sth for you I can handcarry in August (if that's not too late for you)
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    AT-One electric inline skates (quick update Dec 2020)

    if you need help, I can ask friends who own a a plastic-injection company. actually they are in LED business but have a big CNC workshop and plastic injection. (and won´t copy your design) edit: they also do injection moulds inhouse
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    Landwheel and Yave -- Another Mellowboard look-alike

    http://www.crowdfunder.co.uk/fair-price-quality-electric-longboard/updates/? how cheesy is that? they pretend thats their board??? "..Our electric longboard is in the upper class of the electric board market, its ideal for urban rural environments, optimal for concrete and tarmac however can...
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    Electric Booster...MELLOW clone from China

    they still are cheap, considering "real" Eboards. so the money you lose isn´t too much. OR in case it really works the money you save is ok. I will compare the other board from Landwheel to this one also and see which one is better. problem is, I am more focussed on my titanium Fatbike project...
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    Landwheel and Yave -- Another Mellowboard look-alike

    they say it weights 3,2kg. thats 900g less than the B**ster (lets not post that name too often) It would be interesting to get one and see how both perform. @ Vanarian its so cheap, because they use the cheapest parts possible. then they are a factory and don´t consider the mould cost. another...
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    Another chinese copy!

    is that the single motor or DUAL motor set? they have both. funny thing: "...Samsung lithium battery cell, don´t worry about security risk..." OMG! even Samsung batteries can cause a fire if the electronics fail. obviously they don´t seem to understand. my board´s electronics shorted after 2...
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    Electric Booster...MELLOW clone from China

    I got the replacement set and first thing I noticed ist that one motor doesn´t spin smooth. let me explain this.... 1st set: both motors spun equally (no difference in noise between the motors) on a scale from 1-10. 10 being the best they were 5 that means that you did notice the vibration...
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    Eboard V2: Clu - Complete

    awesome built!! (but careful with the red side! its faster than the black side and will tear your board apart!) :mrgreen:
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    Electric Booster...MELLOW clone from China

    thanks for sharing! supermaning is not good (OMG!) don´t ever want to experience that. I guess we are guniea pigs for all kinds of situations as E skate is a fairly young sports. the Booster just burned the electronics. which is even worse as no force or load was involved.
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    Electric Booster...MELLOW clone from China

    @ Hummina Shadeeba you mean that the insulation of the phasewire could have burned and now they might have been shorted? (touching) but that also means `our friends from fareast` didn´t put ANY safety electronics to prevent this from happening. @ Vanarian. Yes. if things break a VESC would make...
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    Electric Booster...MELLOW clone from China

    long story short... it broke after 2 minutes! I didn´t even managed to mount it under a board. I put in the battery and pressed the remote. the motors seem to rotate not very smooth. they kind of wobble a bit. not sure if ts the PU or the whole unit? that doesn´t speak quality. it has 2 speeds...
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