Search found 64 matches

by bbq870
Jul 29 2017 10:15pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 684
Views: 167027

Re: 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.
by bbq870
Jul 26 2017 5:23am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 684
Views: 167027

Re: 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
by bbq870
Jul 17 2017 7:45pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 57499

Re: 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 printed ...
by bbq870
Jul 12 2017 3:23pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 57499

Re: 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?
by bbq870
Jul 09 2017 7:54pm
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 57499

Re: 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
https://m.alibaba.com/product/606682766 ... .20.DSyqg2
by bbq870
Jun 22 2017 9:42am
Forum: Electric Watercraft
Topic: Electric Hydrofoil/E-Foil
Replies: 463
Views: 57499

Re: 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?)
by bbq870
Apr 13 2017 9:24pm
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 684
Views: 167027

Re: 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 and o...
by bbq870
Apr 13 2017 3:17am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 684
Views: 167027

Re: Electric Surf Board

looks like we have a pricetag for the Lift foils.
12000,-
Bildschirmfoto 2017-04-13 um 12.11.34.png
Bildschirmfoto 2017-04-13 um 12.11.34.png (188.86 KiB) Viewed 3950 times
Bildschirmfoto 2017-04-13 um 15.21.37.png
by bbq870
Apr 12 2017 4:16am
Forum: Electric Watercraft
Topic: Electric Surf Board
Replies: 684
Views: 167027

Re: 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
by bbq870
Oct 01 2016 1:28pm
Forum: Electric Watercraft
Topic: JET BOARD PROJECT
Replies: 11
Views: 4283

Re: 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 you hav...
by bbq870
Oct 01 2016 1:15pm
Forum: Electric Watercraft
Topic: Hydrofoil GF09
Replies: 6
Views: 3403

Re: 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 even st...
by bbq870
Sep 28 2016 3:16am
Forum: Stand-up E-scooters and E-skateboards
Topic: Steelhubs.com
Replies: 346
Views: 54875

Re: community project HUB MOTOR ---all going for cost--

they look great!! can´t wait to try them
by bbq870
Jul 19 2016 7:27am
Forum: Stand-up E-scooters and E-skateboards
Topic: Landwheel and Yave -- Another Mellowboard look-alike
Replies: 7
Views: 1257

Re: 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.
Bildschirmfoto 2016-07-19 um 20.20.08.png
by bbq870
Jul 18 2016 11:33pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Carbon Jet Spud / Freebord Bindings / 10S3P
Replies: 13
Views: 6388

Re: 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.
katana.jpg
katana.jpg (74 KiB) Viewed 3003 times
by bbq870
Jul 02 2016 8:23am
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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)
by bbq870
Jul 02 2016 6:44am
Forum: Stand-up E-scooters and E-skateboards
Topic: AT-One electric inline skates (quick update Feb 2019)
Replies: 216
Views: 37825

Re: 3.2KW / 6KW inline skates (updated June 17th 2016)

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
by bbq870
Jul 02 2016 6:18am
Forum: Stand-up E-scooters and E-skateboards
Topic: Landwheel and Yave -- Another Mellowboard look-alike
Replies: 7
Views: 1257

Re: 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 also ha...
by bbq870
Jul 02 2016 3:28am
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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 now, ...
by bbq870
Jul 01 2016 11:02pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Landwheel and Yave -- Another Mellowboard look-alike
Replies: 7
Views: 1257

Re: 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 obsta...
by bbq870
Jul 01 2016 10:31pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Another chinese copy!
Replies: 5
Views: 649

Re: 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 min wit...
by bbq870
Jul 01 2016 10:18pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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, saw a sl...
by bbq870
Jun 29 2016 9:54pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Eboard V2: Clu - Complete
Replies: 10
Views: 1052

Re: 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:
by bbq870
Jun 25 2016 12:16am
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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.
by bbq870
Jun 24 2016 8:11pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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 se...
by bbq870
Jun 24 2016 11:10am
Forum: Stand-up E-scooters and E-skateboards
Topic: Electric Booster...MELLOW clone from China
Replies: 17
Views: 1827

Re: 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 and w...