automatic hammer

[Hooovahh]

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@mikeporter wrote:
I know this is rapidly wandering wayyyy off topic, but one time I had a conversation with an engineer at Corning where he explained why Corelle plates **don't** break when they are dropped on the floor. Very cool...

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Cool story bro...are you going to let us in on the secret? Googling found these links on Cornings Gorilla glass, but I'm guessing your story is more interesting.

http://www.corninggorillaglass.com/faqs

http://www.digitaltrends.com/mobile/sapphire-vs-gorilla-glass/

[billko]

Hmmm... something about resonance and phase?

[mikeporter]

Well, yes and no. The basic idea is the same: glass is at its strongest when it's under compression. Gorilla glass achieves this compression by the ion exchange process mentioned in the article. Corelle accomplishes the same thing be creating a sandwich of different glasses with varying thermal coefficients. The inside layers shrink the least as they cool, the outside layers shrink the most. The result is that the core of the plate is under tons of compression when the plate is cool -- and so is very strong. It's also why when a Corelle plate does break, it shatters so dramatically.

Mike...

[camr_tna]

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@Hooovahh wrote:

Yup, make a buffer circuit involving an FET transistor.  Turn on the transistor using your digital line, and have the FET drive the large amount of current needed.  There is likely a 3rd party component that will do this for you off the shelf.

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I think you are correct.

I found out that the system configuration had some glitches because when i turn the power on for the system, the hammer drops immediately. 

[camr_tna]

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@johnsold wrote:

Grams or gravities?

Lynn

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i think i made everyone confused with how i wrote the dropping force: it is 700 grams.

[camr_tna]

I really appreciate your feeedback and discussion that my force is waaay heavy. I used commercial hammer weight as reference so it is 700 grams.

Anyways, I was able to connect the machine with my NI DAQ and made a simple program where it acquires 5V from distance measuring device. And yes I saw some error on the hardware system as it taps once i powered on.

Attached is the picture of the simple program block i made. I have problems with coordinating the tap spacing and the tapping.

[Hooovahh]

So much DDT, glad it works for you.

[camr_tna]

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@Hooovahh wrote:

So much DDT, glad it works for you.

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actually it did not. because apparently the hammer solnoid hits when i turn on the power. so my program is basically useless for what i need.

I am working on another code and i hope it works.

[RavensFan]

You definitely need to run Block Diagram Cleanup on your code.  Some wires have unnecessary bends, but a bigger problem is that you have wires running behind other objects.  All of which make it harder to read your diagram.

If you don't want the digital output to execute right away, then you might need to add a time delay mechanism in your code.

[camr_tna]

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@OriolesFan wrote:

You definitely need to run Block Diagram Cleanup on your code.  Some wires have unnecessary bends, but a bigger problem is that you have wires running behind other objects.  All of which make it harder to read your diagram.

If you don't want the digital output to execute right away, then you might need to add a time delay mechanism in your code.

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Thank you for the advice.

As for the time delay mechanism, the digital output will execute at specific distance interval. I was able to resolve my distance measuring device and made an array for spacing interval. my concern now is how to make the digital output execute based on this interval and make sure the hammer goes back to original position again.