- Faulhaber 2225U024S16 motor - 8 Updates
- LCD repair - 3 Updates
- circuit tape connected to tv screen is torn off partially - 1 Update
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Dec 18 01:36PM -0500 Hi, all, I'm repairing a Photon Inc. BeamScan 1080 laser beam profiler. It works by using a motor with a drum of about a 1-1/2 inch diameter mounted coaxially on the shaft. The drum has a carefully-calibrated slit made from very thin shim stock, so that it scans the slit across the beam in the X direction and measures the 1-D profile. (You have to rotate the head to get the Y direction.) The bearings on the motor are shot--the shaft rolls around in the bearing and buzzes instead of rotating smoothly. It's quite a nice motor, a Faulhaber 2225U024S16. Trouble is, they don't make it anymore, and apparently haven't in quite awhile--I have their 2006-7 catalogue, and it isn't listed. They do have an apparently similar model 2224U024SR that might be a good replacement. It's 22 mm in diameter, 24 mm long, and has a 2-mm shaft. From the part number it sounds like it runs on 24 V. Anybody got a datasheet or other wisdom? Thanks Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com |
| Michael Terrell <terrell.michael.a@gmail.com>: Dec 18 07:31PM -0800 On Wednesday, December 18, 2019 at 1:36:25 PM UTC-5, Phil Hobbs wrote: > It's 22 mm in diameter, 24 mm long, and has a 2-mm shaft. From the part > number it sounds like it runs on 24 V. > Anybody got a datasheet or other wisdom? What is bad? The bearings, or is there other damage? |
| tabbypurr@gmail.com: Dec 18 07:54PM -0800 On Wednesday, 18 December 2019 18:36:25 UTC, Phil Hobbs wrote: > Anybody got a datasheet or other wisdom? > Thanks > Phil Hobbs There's a lot I don't know about the situation, but fwiw the first thing that springs to mind is why don't you replace the defective bearing. Industrial mech engineering shops can do that sort of thing for not much. I was quoted 60 to do a transaxle maybe 3 years ago. NT |
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Dec 19 02:56AM -0500 On 2019-12-18 22:31, Michael Terrell wrote: >> number it sounds like it runs on 24 V. >> Anybody got a datasheet or other wisdom? > What is bad? The bearings, or is there other damage? The sintered bearings are completely shot. Otherwise it appears OK. ("Other than that, Mrs. Lincoln....") The issue is mainly that I don't know the unloaded speed of the motor at rated voltage, so it's hard to know if the 2224 is a suitable replacement. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com |
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Dec 19 02:57AM -0500 >> Phil Hobbs > There's a lot I don't know about the situation, but fwiw the first thing that springs to mind is why don't you replace the defective bearing. Industrial mech engineering shops can do that sort of thing for not much. I was quoted 60 to do a transaxle maybe 3 years ago. > NT The motor is 20 mm in diameter by 24 mm long. Not quite in the transaxle class. Thanks Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com |
| Michael Terrell <terrell.michael.a@gmail.com>: Dec 19 01:36AM -0800 On Thursday, December 19, 2019 at 2:56:20 AM UTC-5, Phil Hobbs wrote: > know if the 2224 is a suitable replacement. > Cheers > Phil Hobbs Can Faulhaber supply new bearings? I doubt that they were only used on one motor design. |
| olaf <olaf@criseis.ruhr.de>: Dec 19 10:32AM +0100 >("Other than that, Mrs. Lincoln....") The issue is mainly that I don't >know the unloaded speed of the motor at rated voltage, so it's hard to >know if the 2224 is a suitable replacement. https://lemo-solar.de/shop/motoren.php Does it looks like Artikel 75 or 78, 79 Oh..and perhaps you can call Faulhaber and ask for the data. They are very expensive, very good quality and very helpful. The did not have any data on there homepage because the motor is too old, but I expect they can help if you ask them. https://www.mikrocontroller.net/attachment/149581/142700_362.pdf Hm..this datasheet said the 2225 not a motor, it is a generator and it is made with differenz kind of bearing. https://www.ebay.de/itm/Faulhaber-Motor-24Vdc-2225U024S-Identix-Biometric-Fingerprint-Scanner-Part/192039004533?hash=item2cb66aa975:g:b~QAAOSwa~BYP631 https://www.ebay.de/itm/Faulhaber-Modell-2225f012s-Dc-Motor-Ungebraucht-Altes-Lager/312494829941?hash=item48c224b175:g:NX8AAOSwzrxUsByX Sometimes you can buy a motor with a different gearbox and change it. I may be necessary to heat the engine because the use a kind of glue in the threads. Olaf |
| Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Dec 19 10:55AM -0500 On 2019-12-19 04:32, olaf wrote: > >know if the 2224 is a suitable replacement. > https://lemo-solar.de/shop/motoren.php > Does it looks like Artikel 75 or 78, 79 Yup. Those are the right motor but the wrong voltage. > are very expensive, very good quality and very helpful. > The did not have any data on there homepage because the motor > is too old, but I expect they can help if you ask them. I did, but I haven't heard back yet. > Hm..this datasheet said the 2225 not a motor, it is a generator > and it is made with differenz kind of bearing. > https://www.ebay.de/itm/Faulhaber-Motor-24Vdc-2225U024S-Identix-Biometric-Fingerprint-Scanner-Part/192039004533?hash=item2cb66aa975:g:b~QAAOSwa~BYP631 Thanks, I ordered a couple of those last night--I found them after I posted. > Sometimes you can buy a motor with a different gearbox and change > it. I may be necessary to heat the engine because the use a kind of > glue in the threads. This one isn't a gear motor--the drum just goes right on the shaft, with no loading except aerodynamic drag. That's the main reason I'd like the datasheet before I replace it with something else, because the free-running speeds can be pretty different and I don't know much about the speed controller. Thanks Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com |
| Ivan Vegvary <ivanvegvary@gmail.com>: Dec 18 06:19PM -0800 Great microwave oven, except only the top half of the digits (clock, temperature,etc) light up. Have moderate electronixs skills. Is this repairable? Circuit board unavailable on "appliance parts" web sites Thank you. |
| tabbypurr@gmail.com: Dec 18 07:51PM -0800 On Thursday, 19 December 2019 02:19:28 UTC, Ivan Vegvary wrote: > Great microwave oven, except only the top half of the digits (clock, temperature,etc) light up. Have moderate electronixs skills. Is this repairable? Circuit board unavailable on "appliance parts" web sites > Thank you. likely a bad contact to the display. |
| Stephen Wolstenholme <steve@easynn.com>: Dec 19 01:43PM On Wed, 18 Dec 2019 18:19:25 -0800 (PST), Ivan Vegvary >Great microwave oven, except only the top half of the digits (clock, temperature,etc) light up. Have moderate electronixs skills. Is this repairable? Circuit board unavailable on "appliance parts" web sites >Thank you. If you can get to the connections, slide them in and out. Steve -- http://www.npsnn.com |
| John-Del <ohger1s@gmail.com>: Dec 18 04:22PM -0800 On Monday, December 16, 2019 at 6:50:38 PM UTC-5, James Russell wrote: > circuit tape connected to tv screen is torn off partially (top of tv screen insignia ) how do I reconnect it ? I can't find anything on the net so far. Clues wound be nice. > and yes it was me, > james If you're talking about a flexible circuit that is (was) bonded to the LCD screen proper, you're SOL. If you're talking about the flexible ribbons that connect between the display screen and the tcon using flip-up connectors, you can find these on ebay from someone who carelessly ripped a bonded LCD screen ribbon and is parting out what's left.. |
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