Introduction: Echo IPhone Speaker

     The Echo iPhone Speaker is an omni-directional smart phone speaker that is designed to amplify a phone or MP3 device without the use of electronics. The Echo iPhone Speaker is designed to mimic the resonating effect of putting a music playing device in a Solo cup. The Echo Speaker is designed for  iPhone 5 but can be modeled to accommodate any smart phone; you may also have to change the position that the phone sits due to the location of the speaker on the phone.

Step 1: Concept

     This concept is based off of the helpful hack of putting your music playing device in a Solo cup; the sound resonates of the sides of the cup which makes it louder. This concept is like that. Except the Echo Speaker is omni-directional which amplifies your tunes more,  listening experience.

Step 2: Making It, the Base

First, make a 4 by 4 by 3 inch box. This will serve as the base of the Echo Speaker.

Step 3: Making It, Phone Holder Part 1

Second, make a smaller box to the dimensions of the phone you are using, this will be the void that your phone sits in.
The iPhone 5’s height is 4.87 inches, the width is 2.31 inches, and the thickness is 0.30 inches.  Make the dimensions of this box a little bigger than your phone so you can easily put it in and remove it. Remember that your phone should stick in enough so it is balanced, but not to much. In most cases 1 inch would be sufficient for the height of this box.

** If you feel it necessary, go ahead and measure the dimensions of your case so it will work with a case. **

Step 4: Making It, Phone Holder Part 2

Third, you need to make a third and smaller box. This box is where all of the void cones will meet. Make the dimensions of the box small enough so your phone can't fit in to it because you don't want your phone blocking the path of the sound.

Step 5: Making It, Phone Holder Part 3

Fourth, you need to snap the two smaller boxes together. To do this click the magnet in the toolbar, click long and skinny face on the smallest box first, then click on the long and skinny face of the box that you created in Step 3. Make sure when you snap them together, the smaller box is on top, like they are both oriented like in the picture. 

Step 6: Making It, Phone Holder Part 4

Fifthly, you need to snap the 2 small boxes to larger one. Snap them together by pressing the magnet in the toolbar, click on the top face of the smallest box, then click on the top face on the largest box, they should be oriented as in the picture.
** In order to do the next step, you need to ungroup the two smaller boxes from the larger box. To do this, select the three boxes, press ungroup, select the 3 boxes, then select either only the large box or just the smaller boxes.

Step 7: Making It, Phone Holder Part 5

Once you have ungrouped the three boxes, select the two smaller boxes and press the Move button. Click on the arrow pointing up, and move the 2 boxes down so you can only see the top face.

Step 8: Making It, Phone Holder Part 7

Now you need to make the 2 smaller boxes void, this will make a hole, or void, in the largest box the size of the 2 smaller boxes.
To do this you need to click the Combine button in the toolbar, make sure the tool is on subtract. You need to click on the large box first, the target solid, then the smaller 2 boxes, the source solids.
** If you do it the other way around, click on the smaller boxes first and then the large box, you will subtract the larger box and end up with the 2 smaller boxes floating in the air. **

Step 9: Making It, Sound Holes Part 1

Now you need to make 4 cones with a 1 inch radius and a height of 2 inches. These will be made void t creates the holes that amplify the sound.

Step 10: Making It, Sound Holes Part 2

Now you need to center one of the cones on one of the vertical sides of the box.
To do this you need to snap one of the cones to the box, select
the magnet button in the toolbar, click the bottom side of one of the cones, this may require you to move the cone around, then click one of the vertical side of the box. It should look like the picture.
Once you have done that, you need to ungroup the cone and the box. To do this select the box/cone and click ungroup.

Step 11: Making It, Sound Holes Part 3

Once you have ungrouped the box and cone, you need to flip the cone 180 degrees. To do this, you need to click the arrow pointing directly away from the box. Then push it into the box until you can only see the flat face of the cone.
Now you need to make the cone void in the box. To do this you need to select the Combine button in the toolbar at the top, click the box, the "Target Solid", then click the cone, the Source Solid. Be sure it is set on Subtract, if it is not, you will end up with a floating cone.

Step 12: Making It, Sound Holes Part 4

Now repeat Steps 10 and 11 with the remaining 3 cones. Make sure the void cones line up inside of the box and connect with the phone sized boxes in steps 5 through 8.

Step 13: Making It, Fillet the Edges

Now fillet the edges to your preference. I preferred to fillet it .1 inches, and I did it on the outside edges, the inside phone hole, and on the inside of the void cones. 

Step 14: Now You're Done

I went ahead and made it a wooden material for cosmetic purposes because it is originally designed to be printed with a 3D printer. 

** I do not have experience with PLA/ABS plastic acoustics so I do not know what acoustics wil work best. At the end though, it all depends on your preference and what materials you have on hand. **

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