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Evil_Intentions
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Channel GannoK
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 Posted: Wed May 18, 2011 3:07 pm Post subject: |
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Describe the variables please.
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Haxory'
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| Posted: Wed May 18, 2011 3:07 pm Post subject: |
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How does this paper work?
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Evil_Intentions
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| Posted: Wed May 18, 2011 3:09 pm Post subject: |
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| Quote: | To use my method, you MUST have your fipple hole size determined. Note: for many reasons this method will work best with a rectangular ocarina
My predetermined fipple hole is 1/2 inches wide X 1/4 inches. Making an area of 1/8. We need to get a DIAMETER from this, even though i am using a square fipple.
so pi*r^2 = 1/8
r = sqrt(1/8) / pi
Diameter = 2(sqrt(1/8)/pi)
so my fipple diameter is about .4 inches. and about is good enough here.
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Now that the diameter is found, we will use an equation to find our desired volume.
V = 1/ (((F/2148.14)^2)/D)
where F is your frequency in hertz (reference) and D is your diameter that you found.
If you plan on making a 10 or less hole ocarina, then your frequency will be the one desired (523.25 for C5)
if you want a 12 hole oc, which means sub holes, then you want to use the note two notes below the tonic of the scale you wish to create. (i want a 12 in C5, so i use A4,440, as my F)
so i plan on making a 10 hole in C. The rest of the tutorial will be based on this.
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so in my case, my equation will look like this:
V = 1/(((523.25/2148.14)^2)/.4)
so let me simplify/work this:
V = 1/(.243583^2/.4)
V = 1/(.059333/.4)
V = 1/1.48331
v = 6.74168
So my volume SHOULD have to be about 6.8 cubic inches. So my chamber will be a rectangle 2in X 4in X 17/20 in
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Haxory'
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| Posted: Wed May 18, 2011 3:11 pm Post subject: |
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Okay but how to make fipple?
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Channel GannoK
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| Posted: Wed May 18, 2011 3:11 pm Post subject: |
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This could helpful and quite a founding.
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Evil_Intentions
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| Posted: Wed May 18, 2011 3:13 pm Post subject: |
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| Haxory' wrote: | | Okay but how to make fipple? |
Cut out that black square. That's the fipple. The mouthpiece should be straightforward. Cut out the 2 pieces, fold piece A and glue flush with B, then glue it onto the square fush witht he fipple
@GannoK thanks 
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Slugsnack
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| Posted: Wed May 18, 2011 3:15 pm Post subject: |
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| and blowing into that should make a c note ? are you fucking kidding me. attach video please
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Evil_Intentions
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| Posted: Wed May 18, 2011 3:19 pm Post subject: |
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| Slugsnack wrote: | | and blowing into that should make a c note ? are you fucking kidding me. attach video please |
I'm completely honest. Let me charge my camera batteries if it's too hard for you to tape up a box before calling me a liar.
Make sure to save the image to your comp and print from there, otherwise it won't be the right size
EDIT: It's all made and is playing a slightly sharp C. I used glue though, so Ima let it dry, I also will tape it with duct tape when I get home from Karate in about 2 hours. Then I'll make a damn video.
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