I am working on this clock for a customer. Do you notice anything unusual about it?
Attachment 78483
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I am working on this clock for a customer. Do you notice anything unusual about it?
Attachment 78483
Very nice looking clock. Love the motif.
I had to look it up. Those darn kooky French. Lol. I was unfamiliar with a decimal clock. Learned something new today. Thank you.
Very Nice... Learned something new too... :)
AL
Nice work how did you do the number set up I would love to do a clock just not sure how to get the number set up so its right.
Strange 10 hour clock with 100 minutes to the hour. Is that going to be 10 hours a day or 20?
Edit: Ok, a metric clock. Love Google.
Nice project! I had to look that one up.:confused:
OK, so how would you make a mechanism to operate a metric clock?
Since a 12 hour clock is based on a 360 degree divided by 12.... If you used the very same clock works, 360 degrees is divided up into 10.... Just Interpolated different...
Is that correct? Or am I off in left field...?
My background in electronics began in 1977 with my first analog gun fire control computer with lots of dials and hand cranks... Used to aim the 5 inch gun in it's 12 mile range.
AL
What I was looking for was some sort of PTN you could put on your board place your numbers then remove the PTN. If that makes sense.
Here is how I would do it. In the mpc, with the snap grid on, I move the whole group so that the spot for each number is at the center of the board. Select the next number click both the center hor. and ver. buttons twice each. On and off. The number is now centered. In the carving list, drag it into the group. Now select all in the group, move the whole group to put the next vertex on center. Repeat.
I'm not real sure what you mean is there a way to take what you did and make it a PTN then all I would have to do is make the circle with the lines the size I want on the board then add the numbers 1- 12 and then delete the PTN and all that would be left is the numbers in the right placement.
Lots of ways to do this. Here is mine. Open the attached mpc. Click on the group "clock layout". Grab a yellow corner and drag to your desired size. Enter numbers one at a time, and place them on the intersection of the guidelines as I did with the numeral 1.
Attachment 78498
BTW my customer has warned me that there are many so-called "metric" clocks for sale, like this one http://www.amazon.com/METRIC-metric-.../dp/B00821OC3K
but all they have done is put a metric face on a standard clock mechanism, which is not correct at all. (Read the review.) I have not been able to find a true metric clock or mechanism, nor has my customer, which is which I was approached. I have a solution, but if there is a clock or meck available, I'm all ears.
Is this one a fake metric clock as well? (I was also sucked in by the amazon clock. Had to delete my post!))
http://www.cafepress.ca/+metric_cloc...ashes,30924592
I believe it is a fake; if not my customer would buy one (for less money than I am charging!).
DocWheeler, let's do the math. A standard clock has 60*60*24 seconds in a day, or 86,400 seconds per day. A metric clock has 100*100*10 seconds in a day, or 100,000 seconds per day. So a metric second is 86,400/100,000, or .864 standard seconds. The first problem is to get a clock to "tick" at .864 seconds rather than one second (that is not 50/60, or .8333). Second, the minute hand on a standard clock moves 1/60th of a rotation for every 1 rotation of the second hand. The minute hand of a metric clock moves only 1/100th of a rotation for 1 rotation of the second hand. They are completely different animals.
So, it isn't a standard clock motor. Isn't this just a gearing problem? Determine the motor RPM and calculate the gearing for the 3 functions? May have to make the clock larger to fit all the gears in. I'm going to bed now! Will think on it in the AM.
This is great just like the other one but I can't place this on my board and use it as a guide. If my board size changes then it screws it all up. If it was a PTN then I could set it place the numbers and then delete just the PTN and be left with the numbers in the right position.
You can resize the vectors that Dick and I made. Select all and drag a yellow corner handle. It works the same as a pattern would.
My method is a little work but it precisely centers each number where it should be.
Yes I tried that and it works the problem I have is that when I try to change the board size that the clock PTN is on it throws the whole thing off. To use this I am restricted to the board size that it is on.
In Dick's mpc the circle is centered. Remove the centering before you change the board size. After the board size is changed, select all and do the group centering.
Klockit sent a reply to my eMail and they do not have a metric works.
AL
Thank you I never would have figured that one out. Thank god for this forum and the people on it I wouldn't be able to do half the things I do without it.
OK, so one idea that I had for metric clock works was to modify one of my pendulum clocks. Not too hard to design gear sets to divide by 100. And I could shorten the pendulum and reprogram the electronics to operate at the shorter metric second period. Unfortunately, the pendulum clock was too expensive for my customer (I don't give them away, and I would need to invest considerable design time). So, I thought about a synchronous motor-driven clock like my Naked Clock. But synchronous motors speeds are based off power line frequency, and I didn't think I could find one that would operate at .864 seconds or some multiple. So I need a motor that I can very accurately program its speed. I did come up with a solution, but what are your ideas?
So I do not understand why anyone would want a clock like this? Who wants to learn a whole new way of keeping time? I can see a 24 hour clock but this?
It's like a binary clock.... a novelty. This is a Mid 80's Navy Computer that you talked to it in binary.... Univac UYK-20. I taught this at Great Lakes.
https://en.wikipedia.org/wiki/Binary_clock
I don't entirely understand either, except for the novelty, but that doesn't stop me from taking on the commission!
OK, if the motor question is too hard, try this next one. These wings are part of another unique clock that I am building for a customer. To what object do they belong? Hint: I was able to find a free 3D model online, so it is a popular object. I imported the .stl via Pattern Sculptor, which is my new favorite software program. I was very pleased with the alignment on this double-sided carve.
Attachment 78534 Attachment 78535
First glance looked like piano keys, but wrong pattern. Kinda looks like turbine vanes
I am thinking its a time flies clock?
I got a kick from this. I guess there are more than one metric crazy out there. This person designed a digital version but it does show there is hardware out there to make a metric clock possible. Maybe the adruino computer to control an electromagnet to keep the time.
http://www.instructables.com/id/Metric-Clock-Take-2/
Close. I'm using a 28BYJ-48 stepper motor and driver that was built for Arduino and similar platforms. These motors and drivers are widely available and inexpensive at less than $3. I use a TI MSP 430 Launchpad, not Arduino, which I have used for other projects. For those not familiar with stepper motors, this particular one is a unipolar motor with four coils. Energizing the coils in the correct sequence causes the motor to rotate either clockwise or counterclockwise in precise increments or steps. By timing the pulses correctly, the motor can be made to rotate a second hand at exactly the correct speed for a metric clock. (The math and algorithm is somewhat interesting.)
Attachment 78543
Many CNC machines use stepper motors. Ours does not - ours uses servo motors.
Here are a couple of hints on the wings. Mine are larger than the original object. And the object is from a popular children's book.
No one playing? I guess another hint is needed.
Attachment 78561 Attachment 78562
This was my first time using the 1/16" long bit carving 1.5" of MDF.
We do not know anything about Harry Potter stuff!
It's the golden Snitch!
Yes. The customer gave a very good description and drawings of what was wanted. The body is basically sliced in half, and the clock's face put on it.