8 ms·
Building a 3D Printed Electric Jet Powered Snowboard
- russellhanson 11y agoThis thing is dope!!
- kposehn 11y agoHow would a gas turbine be safer? Much more heat, flammable fuel, so I'm curious as to the reasons.
- toomuchtodo 11y agoDepending on the fuel, gas turbines can be much safer. The current and voltage he's working with is fairly dangerous for close contact, where it takes a great deal of effort to ignite kerosene or diesel fuel in an open air environment.
- kposehn 11y agoAh, ok. That makes more sense now. Still, I would expect the massive heat output of a gas turbine to be another danger as well. You are, after all, spitting extremely hot gases out the back, which could pose a great danger to anyone behind and might also melt a large amount of snow. Probably depends greatly on the method of mounting it though...
- savrajsingh 11y agoJude is a part-time comedian. :) He was just kidding.
- erobbins 11y agoIt wouldn't, and it would suck fuel like crazy. Fans aren't optimal for low speed thrust.. turbojets even less so :) 2 fans would be much better than 1 jet.
- trhway 11y agonot safer, though with [bigger] gas turbine you can get something like this : https://www.youtube.com/watch?v=XJARrc40imk https://www.youtube.com/watch?v=XJARrc40imk or with bigger propeller : https://www.youtube.com/watch?v=C_UtPmb3Z-o https://www.youtube.com/watch?v=C_UtPmb3Z-o (in the San Carlos museum btw)
- prbuckley 11y agoHow much thrust would you need to move a person up hill on skis? I wonder if a paragliding motor might work?
- judegomila 11y agoSo I tested the board without me standing on it uphill and it goes up. I estimate around 35lbs+ for my configuration for a slight incline.
- simonebrunozzi 11y agoThe fact that it's 3D printed is just an eye-catcher. You could have done the same without any 3D printing.
- bri3d 11y agoI've never understood this brand of 3D printing detraction - yes, I could absolutely make 80+% of the "glue" parts I make with my 3D printer using crap from the hardware store. But then I would have to know what crap I needed in advance, and go to the hardware store. I like getting to be extra lazy, and 3D printing facilitates that nicely. The end result also usually functions well and looks great. I personally wouldn't have designed that EDF mount the way it was designed, but it works and I can't argue with the totally cool end result. On a side note I'm super glad the author of this blog post used LiPo fire bags. I thought the hype about LiPos as bombs was overblown until one in my homemade electric bike caught fire on the charger once. I was very lucky that I always kept the bike outdoors on my porch, but never again! Always on concrete, in a bag from now on.
- grimmdude 11y agoSeems like using thrust is going to be a limitation here. What about some kind of belt that contacts the ground when activated?
- branchan 11y agoThen he would just be making a snowmobile.
- grimmdude 11y agoSimilar, but you'd be standing on it and there's no steerable front. Much different if you ask me.
- NeutronBoy 11y agoAlmost a hybrid snowmobile/hovercraft
- erobbins 11y agoyou could also add a seat for when you get tired of standing, and maybe a steering mechanism as well, and a cowling to cut down on wind resistance. I think this idea could disrupt the powered snowboard industry.
- scoggs 11y agoHe would either need to cut a space for the track into the board (there goes an expensive board if the results are poor) or put two tracks on either side of the board like training wheels. I don't think either makes sense as the first is too destructive and risky and the second will severely limit turning even more and most likely add unneeded weight.
- grimmdude 11y agoOr hang it off the back perhaps
- darkmighty 11y agoI like the idea. If you have a surface to react against, why not use it? It doesn't change the functionality, so it isn't just becoming a snowmobile as others claim, you just have to set it up so it maintains ability to slide. I think a pair of small tracks on the back with some kind of speed sensors to make it coast without drag is ideal (think bike coasting system with drag compensation).
- markgavalda 11y agoThis guy is going places.
- snarfy 11y agoCool idea. I'd like to see it with a JetCat or similar hooked up to it. http://www.jetcatusa.com/p200.html http://www.jetcatusa.com/p200.html
- donpdonp 11y agoThe amazing part is the energy density and discharge rate of LIPO batteries. Also the ducted fan is impressive for its size. As a hobby project its fun to watch. As a consumer product, the noise pollution would turn the average alpine ski resort into the audio equivalent of a highway.
- deleted 11y ago[deleted]
- sjtrny 11y agoMake sure you keep water (melting snow) away from the ESC, since it likes to kill ESCs https://www.youtube.com/watch?v=s4z8QMgTEA4 https://www.youtube.com/watch?v=s4z8QMgTEA4.
- adamconroy 11y agoWhat about a design that uses kinect energy accumulated when you are going downhill?