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#1
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Tesla Turbine
yesterday I had some spare time:
piece of plywood skateboard "truck" (axle, axle mount, bearings, wheel=hub) 7 Compact disks 10 bolts + nuts 16 washers 4 bolts +nuts for holding the truck to the plywood stacked CD's, cut 4 holes on outer edge (for bolts, to hold CD's together) 2 holes on inner edge (connection to hub) 5 CD's need their inner hold widened. put it together. blew on it with the compressor. approx 4000 RPM Ok, it wobbles. badly. today, I went ahead and remade the CD's, drilling them closer to precise. approx 8000 RPM 12V no load (with a 6volt motor) 6V with load, 2amps output. So, I decided to add ONE nozzle: 1/8" inner diameter aluminum tubing 2X4 wood supports approx 10,000 RPM 8volts, 2 amps loaded measured with digital multimeter. Rich |
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#2
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pictures?
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#3
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wrote in message oups.com... yesterday I had some spare time: piece of plywood skateboard "truck" (axle, axle mount, bearings, wheel=hub) 7 Compact disks 10 bolts + nuts 16 washers 4 bolts +nuts for holding the truck to the plywood stacked CD's, cut 4 holes on outer edge (for bolts, to hold CD's together) 2 holes on inner edge (connection to hub) 5 CD's need their inner hold widened. put it together. blew on it with the compressor. approx 4000 RPM Ok, it wobbles. badly. today, I went ahead and remade the CD's, drilling them closer to precise. approx 8000 RPM 12V no load (with a 6volt motor) 6V with load, 2amps output. So, I decided to add ONE nozzle: 1/8" inner diameter aluminum tubing 2X4 wood supports approx 10,000 RPM 8volts, 2 amps loaded To quote Elmer Fudd -- "be vewy vewy careful" -- there have been a number of reports of some of the CD's exploding in some of the high speed CD drives and doing a fair amount of damage. 10,000 is starting to get up there. (of course they were saying the Formula 1 cars are turning 18,000 on a V-10 engine -- that can really come apart in a hurry !! mikey |
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#4
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"Mike Fields" wrote in message ... wrote in message oups.com... yesterday I had some spare time: piece of plywood skateboard "truck" (axle, axle mount, bearings, wheel=hub) 7 Compact disks 10 bolts + nuts 16 washers 4 bolts +nuts for holding the truck to the plywood stacked CD's, cut 4 holes on outer edge (for bolts, to hold CD's together) 2 holes on inner edge (connection to hub) 5 CD's need their inner hold widened. put it together. blew on it with the compressor. approx 4000 RPM Ok, it wobbles. badly. today, I went ahead and remade the CD's, drilling them closer to precise. approx 8000 RPM 12V no load (with a 6volt motor) 6V with load, 2amps output. So, I decided to add ONE nozzle: 1/8" inner diameter aluminum tubing 2X4 wood supports approx 10,000 RPM 8volts, 2 amps loaded To quote Elmer Fudd -- "be vewy vewy careful" -- there have been a number of reports of some of the CD's exploding in some of the high speed CD drives and doing a fair amount of damage. 10,000 is starting to get up there. (of course they were saying the Formula 1 cars are turning 18,000 on a V-10 engine -- that can really come apart in a hurry !! mikey Didn't "Mythbusters", the TV program do a storey on exploding CD's? |
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#5
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"Tom Miller" wrote in message ... "Mike Fields" wrote in message ... wrote in message oups.com... yesterday I had some spare time: piece of plywood skateboard "truck" (axle, axle mount, bearings, wheel=hub) 7 Compact disks 10 bolts + nuts 16 washers 4 bolts +nuts for holding the truck to the plywood stacked CD's, cut 4 holes on outer edge (for bolts, to hold CD's together) 2 holes on inner edge (connection to hub) 5 CD's need their inner hold widened. put it together. blew on it with the compressor. approx 4000 RPM Ok, it wobbles. badly. today, I went ahead and remade the CD's, drilling them closer to precise. approx 8000 RPM 12V no load (with a 6volt motor) 6V with load, 2amps output. So, I decided to add ONE nozzle: 1/8" inner diameter aluminum tubing 2X4 wood supports approx 10,000 RPM 8volts, 2 amps loaded To quote Elmer Fudd -- "be vewy vewy careful" -- there have been a number of reports of some of the CD's exploding in some of the high speed CD drives and doing a fair amount of damage. 10,000 is starting to get up there. (of course they were saying the Formula 1 cars are turning 18,000 on a V-10 engine -- that can really come apart in a hurry !! mikey Didn't "Mythbusters", the TV program do a storey on exploding CD's? Don't remember that one, but there have been a number of people in the cdr newsgroups who say they have had it happen to them. Only happens in the high speed drives and if the disc has a crack (even a small one) in it already. I have not seen it personally, but there were a number that said it happened to them (as opposed to "I have heard of it"). Apparently does a fairly good job of destroying the drive when it happens ... mikey |
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#6
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"Mike Fields" wrote in message ... "Tom Miller" wrote in message ... "Mike Fields" wrote in message ... wrote in message oups.com... yesterday I had some spare time: piece of plywood skateboard "truck" (axle, axle mount, bearings, wheel=hub) 7 Compact disks 10 bolts + nuts 16 washers 4 bolts +nuts for holding the truck to the plywood stacked CD's, cut 4 holes on outer edge (for bolts, to hold CD's together) 2 holes on inner edge (connection to hub) 5 CD's need their inner hold widened. put it together. blew on it with the compressor. approx 4000 RPM Ok, it wobbles. badly. today, I went ahead and remade the CD's, drilling them closer to precise. approx 8000 RPM 12V no load (with a 6volt motor) 6V with load, 2amps output. So, I decided to add ONE nozzle: 1/8" inner diameter aluminum tubing 2X4 wood supports approx 10,000 RPM 8volts, 2 amps loaded To quote Elmer Fudd -- "be vewy vewy careful" -- there have been a number of reports of some of the CD's exploding in some of the high speed CD drives and doing a fair amount of damage. 10,000 is starting to get up there. (of course they were saying the Formula 1 cars are turning 18,000 on a V-10 engine -- that can really come apart in a hurry !! mikey Didn't "Mythbusters", the TV program do a storey on exploding CD's? Don't remember that one, but there have been a number of people in the cdr newsgroups who say they have had it happen to them. Only happens in the high speed drives and if the disc has a crack (even a small one) in it already. I have not seen it personally, but there were a number that said it happened to them (as opposed to "I have heard of it"). Apparently does a fairly good job of destroying the drive when it happens ... mikey It happened to me. Sounded like a 22 pistol and I did have to replace the drive. It was a German language tape :-) so the entire set is worthless (or nearly so) without the first lesson. Dale |
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#7
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If anyone reading wants pictures, send me an email....
aiiadict AT gmail DOT com Rich |
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#8
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#10
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"Mike Fields" wrote in message
... To quote Elmer Fudd -- "be vewy vewy careful" -- there have been a number of reports of some of the CD's exploding in some of the high speed CD drives and doing a fair amount of damage. Clean CDs are good up to 20-30k, IIRC. Simple job to seperate out the bad ones - they explode. G Tim -- "California is the breakfast state: fruits, nuts and flakes." Website: http://webpages.charter.net/dawill/tmoranwms |
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#11
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Dale Hallmark wrote:
so the entire set is worthless (or nearly so) without the first lesson. I'm sorry! Here is the first lesson: Bier; Guten Tag; Oktoberfest; Auf Wiedersehen; Wo ist mein Hotel?; Schnaps; Danke; Bitte; Noch ein Bier; That should be enough for 2 weeks. (not learning German, staying in Germany) Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? |
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#12
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#13
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#14
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""Nick Müller"" wrote in message ... Dale Hallmark wrote: so the entire set is worthless (or nearly so) without the first lesson. I'm sorry! Here is the first lesson: Bier; Guten Tag; Oktoberfest; Auf Wiedersehen; Wo ist mein Hotel?; Schnaps; Danke; Bitte; Noch ein Bier; That should be enough for 2 weeks. (not learning German, staying in Germany) Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? Thanks Nick but I already knew that much :-) Ich kann zwar ein wenig auf Deutsch lesen, allerdings bin ich nicht in der Lage Deutsch zu schreiben. Später Dale PS it was a "CD" not "Tape" as I miswrote. |
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#15
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"Dale Hallmark" dalehall(at)cableone.net wrote:
Ich kann zwar ein wenig auf Deutsch lesen, allerdings bin ich nicht in der Lage Deutsch zu schreiben. [translation: I can read a bit German, but I'm not able to write in German] This is either the "Big Hallmark Swindle", or this is the only sentence you have perfectly learned (- swindle - recursion). Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? |
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#16
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Gunner wrote:
Pics!! AOL! [BTW: The AOL-CD-Tesla Turbine, how about that?] Can someone drop them in the ummm... dropbox, please. Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? |
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#17
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On Mon, 30 May 2005 23:18:42 -0400, JohnM wrote:
wrote: If anyone reading wants pictures, send me an email.... I'd like to see it- can you just send them to the dropbox? Seconded! If Rich has never used the dropbox, here's instructions. http://www.metalworking.com/dropbox.html |
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#18
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done.
I've seen reference to the "drop box" and didn't know what it was. Thanks for the link, Artemia. Rich |
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#19
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""Nick Müller"" wrote in message ... "Dale Hallmark" dalehall(at)cableone.net wrote: Ich kann zwar ein wenig auf Deutsch lesen, allerdings bin ich nicht in der Lage Deutsch zu schreiben. [translation: I can read a bit German, but I'm not able to write in German] This is either the "Big Hallmark Swindle", or this is the only sentence you have perfectly learned (- swindle - recursion). Nick I collect Austrian coins tokens and medals and have needed to learn a little mostly in that context and a little for communication purposes. It is one of a few sentences that I know how to put together properly. I know lots of words but German sentence structure is tough. Actually English is pretty tough for this old Texan too :-) I would love to know a lot more but I am pretty lazy and most Germans and Austrians I have met electronically have excellent English skills and many times a couple other languages too. Makes me a little lacking by comparisson. Dale Ich weiß nichts davon. Lange nicht gut genug. |
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#20
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"Dale Hallmark" dalehall(at)cableone.net wrote:
I would love to know a lot more but I am pretty lazy and most Germans and Austrians I have met electronically have excellent English skills and many times a couple other languages too. This is the mysterious drawback of your language. Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? |
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#21
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""Nick Müller"" wrote in message ... "Dale Hallmark" dalehall(at)cableone.net wrote: I would love to know a lot more but I am pretty lazy and most Germans and Austrians I have met electronically have excellent English skills and many times a couple other languages too. This is the mysterious drawback of your language. Nick It is the draw back of being American ;-) Dale |
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#22
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Germany actually *teaches* their children
in public schools... they learn german, english, and a TRADE. So, when germans get out of public school, they have SKILLS.... The goal of their education system is PLACEMENT in a job. You apprentice at a workplace while in school. USA's education system profits $$ from their system, but MUCH LESS than german system. USA makes money from teachers, administrators salaries. Everyone in the system gets a chunk in their pockets.... Germany teaches the young. These people then go out and are PRODUCTIVE in their workplace. They profit orders of magnitude greater than we do, because education = money. We just take the money and put it in our pockets, and our society does not advance. That is our culture. We see $$ signs, not long term gain. If we can take the money right now, screw the kids and their futures, and we get rich NOW. Rich |
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#24
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"Dale Hallmark" wrote in message
... It happened to me. Sounded like a 22 pistol and I did have to replace the drive. It was a German language tape :-) so the entire set is worthless (or nearly so) without the first lesson. The first thing I do when I buy new software is duplicate the CDs onto CD-R blanks. Then I label them using a "Sharpie" Ultra Fine Point permanent felt marker which writes with a very fine line. (Never try to use a ball point, or anything other than a felt tip pen!) If the software requires a serial number or registration code, I also write that on the CD copy *and* on the original "master" CD (that way you can still install the software if you lose the original CD case or sleeve that has the code). The originals are never used again: they are kept for archival (back-up) purposes; I install and work from the CD-R copies. Considering how cheap CD-R discs are (and the CD-RW drives), it is very cheap insurance against breakage, scratches, warping, delamination, etc. I've never lost the use of any software using this methodology. Note: When you buy software, you are not buying the CD, you are buying a license to install and use the software. If you damage a CD, you should be able to send it back to the publisher and get a replacement for a nominal fee. Technically, the same is true if you lose the original CD, although you have to prove that you legally purchased a license for that software, which is a little more involved than simply sending back a damaged original disc. Nevertheless, getting a replacement disc involves some time, money, and hassle. Much cheaper and easier to simply copy all your CDs from the start. - Michael |
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#26
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wrote:
So, when germans get out of public school, they have SKILLS.... I wouldn't sign this (and the rest of what you said concerning Germany). And no, I won't continue this diskussion here or elsewhere. If you want I cant help you finding an NG (german speeking, but I bet they will conversate in English with you. - eMail me). This ain't the right group for that discussion. Nick -- "Wissenschafts"-Sendung auf einem der Privat-Kanäle: "Der Behälter fasst 200.000 Kubik-Liter." Wie viele Quadrat-Stunden braucht es dann wohl, um ihn voll zu bekommen? |
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#27
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hard drive discs are metal, and very
sturdy. They are also aligned perfectly on their shaft, and the bearings are meant to spin very quickly. I just took turbine #3 (a hard drive) and put a round case around the discs. Huge increase in RPM. Rich |
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#28
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On Tue, 31 May 2005 21:16:18 +0000, Don Bruder wrote:
In article . com, wrote: done. Hmmm... I'm guessing something went wrong, since I see only two files tagged with today's date [...] Look for Tesla_turbine.txt and Tesla_turbineX.jpg, where X = 1 to 9. |
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#29
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Or am I stupid?
:-) I don't know enough about you to make that judgement, but I sent the attachment to the dropbox as a ZIP, and a human had to unzip them and check them for viruses before they were made available. Rich |
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#30
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Let the record show that Cydrome Leader wrote
back on Tue, 31 May 2005 22:44:08 +0000 (UTC) in rec.crafts.metalworking : USA makes money from teachers, administrators salaries. Everyone in the system gets a chunk in their pockets.... Germany teaches the young. These people then go out and are PRODUCTIVE in their workplace. They profit orders of magnitude greater than we do, because education = money. Uh, germany has one of the highest unployments rates of any developed nation. But that is not, per se, a result of the education establishment. Save that the students were taught that Bismarckian social welfare is the best way to run a country. One can argue (and better economist than I do) that the 12% German unemployment rate is a result of the expense of carrying and paying for the social programs. So the students graduate with a skill set, but they are also graduated into a socio-economic classification. They've skills, just no jobs. And I seem to remember that there wasn't the concept of "go back to school and learn a new 'trade' or profession. (I may be wrong on that, it's been near thirty years since I lived there, and my German wasn't all that good in those days.) tschus pyotr -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
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#31
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In article . com,
wrote: Or am I stupid? :-) I don't know enough about you to make that judgement, but I sent the attachment to the dropbox as a ZIP, and a human had to unzip them and check them for viruses before they were made available. Rich Ahhhh... That would explain it, then... When I went looking, they must not have been uncrated and available yet. Let's see what happens... Aha! There they are. And the "Tesla_Turbine.txt" file is identical to the "attachment_description.txt" file I saw yesterday. Guess I was just "early"  -- Don Bruder - - New Email policy in effect as of Feb. 21, 2004. Short form: I'm trashing EVERY E-mail that doesn't contain a password in the subject unless it comes from a "whitelisted" (pre-approved by me) address. See http://www.sonic.net/~dakidd/main/contact.html for full details. |
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#32
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The CD's held together fine with no
case around the turbine and using compressor air nozzle instead of a nozzle on the turbine. I put the case on, and got a few thousand extra RPM. I put a cheap and quick nozzle on the turbine, and the CD's flew apart. Lucky for me, I had the case on it, so they just bounced off the case and fell on the ground. Rich |
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#33
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pyotr filipivich wrote:
Let the record show that Cydrome Leader wrote back on Tue, 31 May 2005 22:44:08 +0000 (UTC) in rec.crafts.metalworking : USA makes money from teachers, administrators salaries. Everyone in the system gets a chunk in their pockets.... Germany teaches the young. These people then go out and are PRODUCTIVE in their workplace. They profit orders of magnitude greater than we do, because education = money. Uh, germany has one of the highest unployments rates of any developed nation. But that is not, per se, a result of the education establishment. Save that the students were taught that Bismarckian social welfare is the best way to run a country. One can argue (and better economist than I do) that the 12% German unemployment rate is a result of the expense of carrying and paying for the social programs. I'm waiting for the day the last person in Europe with a job gets sick of paying for everybody else and quits. So the students graduate with a skill set, but they are also graduated into a socio-economic classification. They've skills, just no jobs. And I seem to remember that there wasn't the concept of "go back to school and learn a new 'trade' or profession. (I may be wrong on that, it's been near thirty years since I lived there, and my German wasn't all that good in those days.) tschus pyotr |
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#34
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Let the record show that Cydrome Leader wrote
back on Sat, 4 Jun 2005 08:30:04 +0000 (UTC) in rec.crafts.metalworking : pyotr filipivich wrote: Let the record show that Cydrome Leader wrote back on Tue, 31 May 2005 22:44:08 +0000 (UTC) in rec.crafts.metalworking : USA makes money from teachers, administrators salaries. Everyone in the system gets a chunk in their pockets.... Germany teaches the young. These people then go out and are PRODUCTIVE in their workplace. They profit orders of magnitude greater than we do, because education = money. Uh, germany has one of the highest unployments rates of any developed nation. But that is not, per se, a result of the education establishment. Save that the students were taught that Bismarckian social welfare is the best way to run a country. One can argue (and better economist than I do) that the 12% German unemployment rate is a result of the expense of carrying and paying for the social programs. I'm waiting for the day the last person in Europe with a job gets sick of paying for everybody else and quits. "Wer ist Johan Galt?" "Qui est Jacques Galt?" tschus pyotr -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
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#36
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pyotr filipivich wrote:
"Grüße herrlichen, weiß Himmel, daß eins von ihm Winkel fehlt ist?" The only thing you'll get with this sentence are either rising eye browns or a grin. It doesn't make sense, I'm sorry. :-) Did you babelfish it? Do you know that software called "babelizer" that translates some text back and forth between two languages (using babelfish) until it no longer changes. The outcome is quite funny! For your amusement click: http://www.tashian.com/multibabel/ Nick -- Motormodelle / Engine Models http://www.motor-manufaktur.de |
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