Dan Nguyen Posted January 10 Share Posted January 10 I am really happy to have completed the restoration of these two CF Genteurs. They are a French product, really beautiful and scarce. They now work perfectly with DC 220 volts, and are ready for everyday use for decades to come. 2 Quote Link to comment Share on other sites More sharing options...
Evan Atkinson Posted January 11 Share Posted January 11 (edited) Three cheers for the master restorer! Excellent work Dan. Just magnificent 🤩 To see how these came to you and to see how they are now is inspiring. I'm going to have to send you the armature for the Genteur I have here. It needs your expert touch at Marelli-style coil braiding. Is that a thick teflon washer underneath the commutator. Seems like that might be preferable to inserting a small ball or needle bearing in a race? Edited January 11 by Evan Atkinson 1 Quote Link to comment Share on other sites More sharing options...
Anthony Lindsey Posted January 11 Share Posted January 11 wow, impressive and humbling to say the least.... and I struggle to wire up a 3 wire headwire. 2 Quote Link to comment Share on other sites More sharing options...
Dan Nguyen Posted January 11 Author Share Posted January 11 1 hour ago, Evan Atkinson said: Three cheers for the master restorer! Excellent work Dan. Just magnificent 🤩 To see how these came to you and to see how they are now is inspiring. I'm going to have to send you the armature for the Genteur I have here. It needs your expert touch at Marelli-style coil braiding. Is that a thick teflon washer underneath the commutator. Seems like that might be preferable to inserting a small ball or needle bearing in a race? Yes, it is Teflon plastic, so far I have not found a better material to make a washer for ceiling fans, hopefully someone here is an expert to tell me about anti-wear and self-lubricating plastic materials better than Teflon. The distance between the rotor and the bottom plate is not enough to put a thrust ball bearing there (I could not find a thrust ball bearing with suitable parameters for it in Vietnam) 1 Quote Link to comment Share on other sites More sharing options...
Russ Huber Posted January 11 Share Posted January 11 Descours & Cabaud produits metallurgiques. : Descours & Cabaud : Free Download, Borrow, and Streaming : Internet Archive 2 Quote Link to comment Share on other sites More sharing options...
Chris Campbell Posted January 11 Share Posted January 11 4 hours ago, Dan Nguyen said: Yes, it is Teflon plastic, so far I have not found a better material to make a washer for ceiling fans, hopefully someone here is an expert to tell me about anti-wear and self-lubricating plastic materials better than Teflon. The distance between the rotor and the bottom plate is not enough to put a thrust ball bearing there (I could not find a thrust ball bearing with suitable parameters for it in Vietnam) By far not an an expert but take a look at Rulon. It is expensive domestically but can be bought reasonably from India, China and scraps on eBay. Be aware the gold is bronze filled and conductive but other colors carry different properties. The maroon is a suitable color match for gutta. It is all self lubricating and designed for wear resistance. 2 Quote Link to comment Share on other sites More sharing options...
Dan Nguyen Posted January 11 Author Share Posted January 11 (edited) 18 hours ago, Chris Campbell said: By far not an an expert but take a look at Rulon. It is expensive domestically but can be bought reasonably from India, China and scraps on eBay. Be aware the gold is bronze filled and conductive but other colors carry different properties. The maroon is a suitable color match for gutta. It is all self lubricating and designed for wear resistance. Thank you for the information about Rulon plastic, this seems to be the ideal material, however on Ebay its price is very high. I will start to find a supplier in China, hopefully it will be cheap. Edited January 12 by Dan Nguyen Quote Link to comment Share on other sites More sharing options...
Dan Nguyen Posted January 11 Author Share Posted January 11 (edited) 9 hours ago, Russ Huber said: Descours & Cabaud produits metallurgiques. : Descours & Cabaud : Free Download, Borrow, and Streaming : Internet Archive Great!!!! I also have regulators like the one pictured in this catalog Edited January 11 by Dan Nguyen 1 Quote Link to comment Share on other sites More sharing options...
Doug Wendel Posted January 14 Share Posted January 14 Just incredible craftsmanship. Beautiful. Quote Link to comment Share on other sites More sharing options...
Dave Hoatson Posted January 14 Share Posted January 14 (edited) I have used needle thrust bearings to replace the metal thrust washer used in early DC ceiling fans. Their low friction allows a DC fan to run at very low voltage. And, only 2mm thick before you add the two thin race washers. My 220 volt Dayton ran fine at 40 volts. It was pretty fast at 120 volts, letting me run it on US power (with a bridge rectifier) without any step-down transformer. $8 for two. But, I’m sure Dan’s teflon washer will do just fine. Certainly better than an iron washer. Edited January 14 by Dave Hoatson 2 Quote Link to comment Share on other sites More sharing options...
Mel Lagarde Posted February 26 Share Posted February 26 Absolutely beautiful restoration. Restoration of the armature and the coils are outstanding. Thank you for posting this for is, Dan. Mel Quote Link to comment Share on other sites More sharing options...
Bobby Gaines Posted March 2 Share Posted March 2 Dan that’s amazing, great job.! Quote Link to comment Share on other sites More sharing options...
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