General > General Technical Chat
Cheapo clock tear up.
Gyro:
I had to replace our kitchen clock with that exact movement a few months back. The tiny plastic pivot pin on the top of that first gear had completely worn away - the shock loading of starting and stopping the second hand is quite high.
MK14:
--- Quote from: DrG on January 04, 2022, 10:05:02 pm ---What was said by me, was, in fact, correct and pretty much everyone around here can figure that out.
--- End quote ---
Ok, let's check out your responses then. You said:
--- Quote from: DrG on January 04, 2022, 07:29:14 pm ---No, I don't think you got that right at all. Not about the crystal, about a stepper motor.
--- End quote ---
So you seem to be saying that you don't think it is some kind of stepper motor.
Which would seem to be in disagreement, with other posters and the wiki article.
DrG:
--- Quote from: MK14 on January 04, 2022, 10:20:22 pm ---
--- Quote from: DrG on January 04, 2022, 10:05:02 pm ---What was said by me, was, in fact, correct and pretty much everyone around here can figure that out.
--- End quote ---
Ok, let's check out your responses then. You said:
--- Quote from: DrG on January 04, 2022, 07:29:14 pm ---No, I don't think you got that right at all. Not about the crystal, about a stepper motor.
--- End quote ---
So you seem to be saying that you don't think it is some kind of stepper motor.
Which would seem to be in disagreement, with other posters and the wiki article.
--- End quote ---
Predictable arrogance that literally makes my point. You have nothing at all to contribute other than a ridiculous attempt to correct - that is your purpose and I seriously doubt you have ever made a living doing it.
Let's actually read what I wrote....not your cut and paste of part of what I wrote in a pathetic attempt to ... oh nevermind, you wouldn't understand anyways.
--- Quote from: DrG on January 04, 2022, 07:29:14 pm ---No, I don't think you got that right at all. Not about the crystal, about a stepper motor. That gear is not attached to the shaft of a motor. There is no stepper motor or motor at all. Movement is accomplished by two magnets. One is a permanent magnet inside the base of that first gear. The other is an electromagnet (i.e., that coil). Energizing the coil creates a repelling magnetic pulse that moves the gear - perhaps my non-EE terms leave something to be desired.
So, beyond the crystal oscillator, it would seem that electromagnet pulse width needs to be fairly precisely specified so that only a single gear-tooth move is produced - that is what I think is so neat.
EDIT: Also, I really don't want this to be an argument thread or, just as bad, an "I know more than you thread so I am going to correct you". I think I have the operation of this right. If you KNOW you have it right than feel free to explain and all will benefit. But, please, appreciate that I went through the trouble of taking and posting pictures of something that I though was interesting and entertaining.
--- End quote ---
Look at the first pph:
No, I don't think you got that right at all. Not about the crystal, about a stepper motor. That gear is not attached to the shaft of a motor. There is no stepper motor or motor at all. Movement is accomplished by two magnets. One is a permanent magnet inside the base of that first gear. The other is an electromagnet (i.e., that coil). Energizing the coil creates a repelling magnetic pulse that moves the gear - perhaps my non-EE terms leave something to be desired.
Note that I said that I don't *think* he got it right - see what I did there? Let me spell it out - it says I don't think I am the smartest MFer around, but this is what I see... Then proceeded to explain clearly what I saw and I did that correctly - you just can't admit it that. You with your "seems to", have decided that ANYTHING THAT PULSES IS A STEPPER MOTOR. This ill-advised and opportunistic mischaracterization complete ignores, like your buddy, what most people on this board think of as a stepper motor. You know that and you know that is a point and one that you can't cover when you put your hat on as you leave.
Instead of anything resembling a civil response which would include ADMITTING that what I said here is absolutely correct:
"Movement is accomplished by two magnets. One is a permanent magnet inside the base of that first gear. The other is an electromagnet (i.e., that coil). Energizing the coil creates a repelling magnetic pulse that moves the gear".
There was a correction, erroneous as it is. followed up with a drive by link - the true mark of the weak-minded who have only the time to correct...in their own minds.
In my second pph...
"So, beyond the crystal oscillator, it would seem that electromagnet pulse width needs to be fairly precisely specified so that only a single gear-tooth move is produced - that is what I think is so neat."
I again am being, at least, fundamentally, accurate and am trying to set a pleasant tone.
Finally, I edited the post adding the 3rd pph because I knew it could go the way that it did. That too is not something that you "seem" to grasp.
In my original, well before your sophomoric summary of what "seems" to be.... So, the circuitry under the blob, amplifies the crystal oscillation pulses to drive the coil – right? Nice little neat design. That is absolutely true and nothing that you have said or anyone in this thread has said refutes that at all.
Now any civil response by anyone with an IQ and an EQ above that of a leafy green vegetable, and any true expert, anyone with any successful record of communication, anyone who is sincere, would have stated - YES, when you say, "Movement is accomplished by two magnets. One is a permanent magnet inside the base of that first gear. The other is an electromagnet (i.e., that coil). Energizing the coil creates a repelling magnetic pulse that moves the gear". You are correct....and....______.
That is the point - the "corrector" is not intellectually or emotionally inclined to do such a thing as it would defeat the reason they are responding in the first place.
But if you had, then you could come up with whatever contribution you wanted to add....it's a stepper motor, not in the usual sense as there is no shaft that the gear is connected to like the ones you have probably used, or...this is an old design and works so well it is all over the place, and so on and so forth.
You, again, could not do that - ask yourself why you could not do that - ask yourself why you still can't do that - I know why and sometimes I am inclined to simply call that crap out and I have already provided some drive-by links for you to go read, but, it "seems" like you disagree with them. It "seems" like you are an absolute expert on what things "seem" like. To me, it "seems" like you are just spewing disingenuous BS because you are not intellectually capable of addressing the issue in any other way.
Regardless, I can help you out by simply not responding to any more of your posts and perhaps the best thing I can tell you is that yes, I agree, to you it must *seem* like that.
MK14:
--- Quote from: DrG on January 04, 2022, 11:32:56 pm ---Regardless, I can help you out by simply not responding to any more of your posts
--- End quote ---
:palm:
Are they posting while drunk, too tired, had a really bad day, or something ?
joeqsmith:
I still ask myself, why....
https://www.eevblog.com/forum/repair/cheap-clock-repair-why/
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