“Time flies by” we have heard that idiom zillions of times. But have you ever heard “time drives by”? Well, if not, then get used to saying that ‘coz after you see this marvelous DIY Gear clock, this is how your time will pass by you. So, behold this awe-inspiring piece of art, courtesy Alan Parekh, “The Gear Clock.” You may have overlooked many alike DIYs, but you can count on it to leave you breathless. This clock is constructed out of fiber board gears, which is the only conspicuous and most splendid feature and all the electronics lurk beneath it snugly. Each gear is meticulously stacked over the other with interlocking cogs, so the gear rotates and shows accurate time concomitantly. The Gear clock has a PIC 16f628A microcontroller as its brain, which is coupled with a bipolar Step motor, few gears (with dissimilar teeth i.e. 9,18 and 24 and 72 in number), one 20MHz Crystal oscillator and some other electronic stuff to give birth to this "timeless beauty."
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To achieve the correct timing the 9 tooth motor gear is advanced 4 steps every 9 seconds. By moving 4 steps at a time the motor routines can be simple since the motor is always at rest with the same coil energized. This motor moves 1.8 degrees per pulse which means that with 200 pulses it will make one full rotation. Since it’s a bipolar motor it is simple for the PIC to drive it with only 4 transistors.
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The Gear clock has two buttons to set the time, should in case it shows erroneous one. This may be a little time devouring, as pressing he right/left button decrements/increments the time one step using the motor. So, it may take you a while to adjust it. But, as we know, no pains no gains. This beautiful clock is far more worth than that and it won’t hurt to deal with such a petty problem. This clock will surely adorn your home walls and will be strikingly visible from any corner. Well, what’s keeping you now? Go and try building one for yourself. Still waiting….?
Now it's you turn to drive time your way!!!
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