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Noisy bottle dynamo - is there any maintenance I can do?
On Thursday, December 20, 2001 at 3:28:25 PM UTC-8, Henry Law wrote:
I checked the FAQ and the Google archive without finding very much about dynamos (which surprised me), so here goes my first post to rec.bicycles.tech ... My wife's bike (gash, heavy traditional touring bike about twenty years old) has a tyre-driven dynamo which consists of an aluminium bottle-shaped body with, at the top of the "neck", a knurled wheel which rubs on the tyre; connections to the lights come out of the bottom of the bottle. By way of maker's marks there is just a "U", plus stuff about being made in Germany, but my review of newsgroup postings suggests that it's a "bottle dynamo", possibly made by Union? There are two problems with it: (1) it makes a noise like an air-raid siren when in use (only a slight exaggeration); (2) it adds enough resistance (says my not-unfit wife) to turn the machine into an exercise bicycle. Power output is fine, though. I have an identical unit on my bike, which is much quieter and adds only a little resistance. I've taken the "bottle" off, undone the only visible nut, securing the knurled wheel in position, and done the usual sort of cleaning and greasing, without obvious effect. Is there any other maintenance I can do on the thing that might cure the problem? -- Henry Law I used to be Manchester, England but I had to move because of spam There are methods as Andrew mentioned but those bottle generators are extremely inefficient. Hub generators are where it's at. Look at this which is dirt cheap and you would have to have it built into a wheel which would still make it cheap. https://www.ebay.com/itm/Nukeproof-G...AOSwunhfGeZ O |
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Noisy bottle dynamo - is there any maintenance I can do?
On Fri, 24 Jul 2020 19:04:14 -0400, Frank Krygowski
wrote: Hub generators are where it's at. Look at this which is dirt cheap and you would have to have it built into a wheel which would still make it cheap. https://www.ebay.com/itm/Nukeproof-G...b/324238672050 That's got a catchy name - "Generator" - but AFAICT that's just a hub, not a dynamo. It doesn't generate any electricity. I thought that might be the invention of the seller, but was apparently contrived by the manufacturer: http://nukeproof.com/products/hubs/ The eBay $10 price, plus $8.25 shipping, is the starting price for an auction and not the "buy it now" price. Retail price is about $42: http://www.groupbikes.com/products/Nukeproof-Generator-Front-Hub-%252d-15mm%252dQR-2016.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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Noisy bottle dynamo - is there any maintenance I can do?
On Saturday, July 25, 2020 at 11:47:05 AM UTC-7, Jeff Liebermann wrote:
On Fri, 24 Jul 2020 19:04:14 -0400, Frank Krygowski wrote: Hub generators are where it's at. Look at this which is dirt cheap and you would have to have it built into a wheel which would still make it cheap. https://www.ebay.com/itm/Nukeproof-G...b/324238672050 That's got a catchy name - "Generator" - but AFAICT that's just a hub, not a dynamo. It doesn't generate any electricity. I thought that might be the invention of the seller, but was apparently contrived by the manufacturer: http://nukeproof.com/products/hubs/ The eBay $10 price, plus $8.25 shipping, is the starting price for an auction and not the "buy it now" price. Retail price is about $42: http://www.groupbikes.com/products/Nukeproof-Generator-Front-Hub-%252d-15mm%252dQR-2016.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 That is really odd - why would you call it a generator hub if there was no generator in it? There are plenty of generator hubs on the market such as Shimano Alfine S501 which is 3 watts at 6 volts. This would easily drive REALLY bright LED head and taillights. |
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Noisy bottle dynamo - is there any maintenance I can do?
On 7/25/2020 3:14 PM, wrote:
On Saturday, July 25, 2020 at 11:47:05 AM UTC-7, Jeff Liebermann wrote: On Fri, 24 Jul 2020 19:04:14 -0400, Frank Krygowski wrote: Hub generators are where it's at. Look at this which is dirt cheap and you would have to have it built into a wheel which would still make it cheap. https://www.ebay.com/itm/Nukeproof-G...b/324238672050 That's got a catchy name - "Generator" - but AFAICT that's just a hub, not a dynamo. It doesn't generate any electricity. I thought that might be the invention of the seller, but was apparently contrived by the manufacturer: http://nukeproof.com/products/hubs/ The eBay $10 price, plus $8.25 shipping, is the starting price for an auction and not the "buy it now" price. Retail price is about $42: http://www.groupbikes.com/products/Nukeproof-Generator-Front-Hub-%252d-15mm%252dQR-2016.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 That is really odd - why would you call it a generator hub if there was no generator in it? There are plenty of generator hubs on the market such as Shimano Alfine S501 which is 3 watts at 6 volts. This would easily drive REALLY bright LED head and taillights. You ask why? [raises hand] Marketing! c.f. Communist front named 'BLM', another successful example of 3 card monte. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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Noisy bottle dynamo - is there any maintenance I can do?
On Saturday, July 25, 2020 at 1:52:20 PM UTC-7, AMuzi wrote:
On 7/25/2020 3:14 PM, wrote: On Saturday, July 25, 2020 at 11:47:05 AM UTC-7, Jeff Liebermann wrote: On Fri, 24 Jul 2020 19:04:14 -0400, Frank Krygowski wrote: Hub generators are where it's at. Look at this which is dirt cheap and you would have to have it built into a wheel which would still make it cheap. https://www.ebay.com/itm/Nukeproof-G...b/324238672050 That's got a catchy name - "Generator" - but AFAICT that's just a hub, not a dynamo. It doesn't generate any electricity. I thought that might be the invention of the seller, but was apparently contrived by the manufacturer: http://nukeproof.com/products/hubs/ The eBay $10 price, plus $8.25 shipping, is the starting price for an auction and not the "buy it now" price. Retail price is about $42: http://www.groupbikes.com/products/Nukeproof-Generator-Front-Hub-%252d-15mm%252dQR-2016.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 That is really odd - why would you call it a generator hub if there was no generator in it? There are plenty of generator hubs on the market such as Shimano Alfine S501 which is 3 watts at 6 volts. This would easily drive REALLY bright LED head and taillights. You ask why? [raises hand] Marketing! c.f. Communist front named 'BLM', another successful example of 3 card monte. Now we get some propaganda from SRS and Kragowski |
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Noisy bottle dynamo - is there any maintenance I can do?
On Sunday, July 26, 2020 at 10:46:44 AM UTC-7, Jeff Liebermann wrote:
On Sat, 25 Jul 2020 15:52:11 -0500, AMuzi wrote: You ask why? My guess(tm) is someone at NukeProof coined the term due to a defective understanding of the English language. They then discovered that it sold quite well, which seemed like a good reason to not change the name. I'm sure the FTC will be happy to write NukeProof a polite letter indicating that this might be false and deceptive advertising. However, since few buyers bother to file a complaint, the likelihood of the FTC demonstrating a profit enforcing the complaint due to collection costs from China, and nobody at NukeProof can read English, I suspect the legal approach will go nowhere, or already has gone nowhere. https://www.ftc.gov/news-events/media-resources/truth-advertising https://www.ftc.gov/faq/consumer-protection/submit-consumer-complaint-ftc After being educated in American public schools, too few people know how to write a letter of complaint. |
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Noisy bottle dynamo - is there any maintenance I can do?
On Sun, 26 Jul 2020 13:51:16 -0700 (PDT), wrote:
On Sunday, July 26, 2020 at 10:46:44 AM UTC-7, Jeff Liebermann wrote: On Sat, 25 Jul 2020 15:52:11 -0500, AMuzi wrote: You ask why? My guess(tm) is someone at NukeProof coined the term due to a defective understanding of the English language. They then discovered that it sold quite well, which seemed like a good reason to not change the name. I'm sure the FTC will be happy to write NukeProof a polite letter indicating that this might be false and deceptive advertising. However, since few buyers bother to file a complaint, the likelihood of the FTC demonstrating a profit enforcing the complaint due to collection costs from China, and nobody at NukeProof can read English, I suspect the legal approach will go nowhere, or already has gone nowhere. https://www.ftc.gov/news-events/media-resources/truth-advertising https://www.ftc.gov/faq/consumer-protection/submit-consumer-complaint-ftc After being educated in American public schools, too few people know how to write a letter of complaint. No problem. The FTC will gladly help you craft a letter of complaint. "How to write an effective complaint letter" https://www.consumer.ftc.gov/blog/2015/09/how-write-effective-complaint-letter There are even sample complaint letters available that can be plagerized: https://www.usa.gov/complaint-letter As a victim of the American educational system, I highly recommend you try complaining about some of the things you've posted in a bicycle specific newsgroup. It might be a useful skill for after you're released from the re-education camp for treason, sedition, crime-think, or failing to agree with whomever is in power. However, the problem is not just a letter of complaint. I suspect that the real problem is that there are too few people who are able to write anything worth reading. I try to answer questions in a few of the technical newsgroups. Many of the questions posted are impossible to answer with the information given and are vague, ambiguous, and incoherent. Many are one line questions with no details. Some are devoid of any useful numbers. I suspect a few were intentionally edited to remove any and all specific and useful information. It's likely that anyone who cannot properly frame a technical question, might also be unable to compose a letter of complaint. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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Noisy bottle dynamo - is there any maintenance I can do?
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#10
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Noisy bottle dynamo - is there any maintenance I can do?
On Sunday, July 26, 2020 at 2:51:25 PM UTC-7, Jeff Liebermann wrote:
On Sun, 26 Jul 2020 13:51:16 -0700 (PDT), wrote: On Sunday, July 26, 2020 at 10:46:44 AM UTC-7, Jeff Liebermann wrote: On Sat, 25 Jul 2020 15:52:11 -0500, AMuzi wrote: You ask why? My guess(tm) is someone at NukeProof coined the term due to a defective understanding of the English language. They then discovered that it sold quite well, which seemed like a good reason to not change the name. I'm sure the FTC will be happy to write NukeProof a polite letter indicating that this might be false and deceptive advertising. However, since few buyers bother to file a complaint, the likelihood of the FTC demonstrating a profit enforcing the complaint due to collection costs from China, and nobody at NukeProof can read English, I suspect the legal approach will go nowhere, or already has gone nowhere. https://www.ftc.gov/news-events/media-resources/truth-advertising https://www.ftc.gov/faq/consumer-protection/submit-consumer-complaint-ftc After being educated in American public schools, too few people know how to write a letter of complaint. No problem. The FTC will gladly help you craft a letter of complaint. "How to write an effective complaint letter" https://www.consumer.ftc.gov/blog/2015/09/how-write-effective-complaint-letter There are even sample complaint letters available that can be plagerized: https://www.usa.gov/complaint-letter As a victim of the American educational system, I highly recommend you try complaining about some of the things you've posted in a bicycle specific newsgroup. It might be a useful skill for after you're released from the re-education camp for treason, sedition, crime-think, or failing to agree with whomever is in power. However, the problem is not just a letter of complaint. I suspect that the real problem is that there are too few people who are able to write anything worth reading. I try to answer questions in a few of the technical newsgroups. Many of the questions posted are impossible to answer with the information given and are vague, ambiguous, and incoherent. Many are one line questions with no details. Some are devoid of any useful numbers. I suspect a few were intentionally edited to remove any and all specific and useful information. It's likely that anyone who cannot properly frame a technical question, might also be unable to compose a letter of complaint. In the technical news groups on-line I have noted that there are a number of the "enlightened" that answer all of the questions and they quite obviously don't know what they're talking about and attack anyone that replies with the correct answer. So I've given up on most of them. I'm not saying "MY" answers since I've watched others getting the same treatment. |
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