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Post by ChrisCrosskey on Mar 1, 2006 12:18:14 GMT
Hi folks...
I've become fascinated by Tesla turbines so I'm planning on making one.... in perspex.... The body is a piece of 3" tube with 1/4" walls, prolly about 2-3" long, endplates adn beaering carriers will be 1/2" perspex, the discs will be 2mm with 2mm gaps or thereabouts. It will only ever be run on air (or possibly water as a pump I guess).... It will have sealed metal ball-race bearings adn if I have to it will have a metal axle (though I'd like to make it out of perspex too if I can).... Does anyone have any experience of this sort of thing..... problem with all the teslas I've seen at shows has been that they are small and rather sphinx like in their inscrutability.... at least with a clear plastic one I could see what is happening...
chrisc
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Post by the_viffer on Mar 1, 2006 12:29:32 GMT
Is that one of those things where you need to be on a low fibre diet for a month before you try to run it?
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Post by havoc on Mar 1, 2006 13:13:07 GMT
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Post by ChrisCrosskey on Mar 1, 2006 13:41:37 GMT
45% kinetic efficiency? Wow... that's huge isn't it?.... I plan on mine only runnign on 20psi or so anyway and I'll not be using shaped slots, just a ring of holes, it'll also be reversible.....
chrisc
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chris vine
Elder Statesman
Posts: 2,112
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Post by chris vine on Mar 1, 2006 22:37:28 GMT
Hi All, Now then, Tessla turbines may be very interesting and operating steam boilers at high pressures may seem a bit dangerous to us but if you want to make something really interesting (oh and mad and dangerous as well) you need to make a Tessla coil and operate it in your living room. Check these photographs and be inspired, worried etc etc... www.mgvolt.com/sparks-pictures.htmChris. |
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Post by Andy Clark on Mar 1, 2006 22:52:34 GMT
Hi All, Now then, Tessla turbines may be very interesting and operating steam boilers at high pressures may seem a bit dangerous to us but if you want to make something really interesting (oh and mad and dangerous as well) you need to make a Tessla coil and operate it in your living room. Check these photographs and be inspired, worried etc etc... www.mgvolt.com/sparks-pictures.htmChris. Ooooohhh .. want one, not sure what HSE might say though. I wouldn't like to be in the Bangkok disco with that lot sparking over my head! |
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Post by alanstepney on Mar 2, 2006 4:19:45 GMT
I know someone who has made many Tesla turbines.
The two problems he has had are,
speed and finding bearings to suit,
and the "rotor's" breaking, thus throwing nasty sharp bits around.
Fascinating things, but not much to see.
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Post by steammadman on Mar 3, 2006 21:09:16 GMT
no thanks chris.
I'll stick to good ld fashoned steam engines, all them thar spark sure gives me the eebie-. jeebies. Plus her who must be obeyed might be flashing me out of the door.
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Post by ChrisCrosskey on Mar 6, 2006 10:57:06 GMT
no thanks chris. I'll stick to good ld fashoned steam engines, all them thar spark sure gives me the eebie-. jeebies. Plus her who must be obeyed might be flashing me out of the door. Well I'll count it as a suvccess if it revolves in one direction for more than ten seconds.... I'm using fully sealed ball-bearings adn they're rated to well over 10000 rpm in grease, I just want to see one turn over.... Now all I need is some more 2mm perspex/lexan... chrisc |
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