Make a (NFC-enhanced) slip case for your phone
Have an Android phone with NFC capabilities? Make a multi-functional carrying case that automatically puts your ringer on silent, turns it up loud, or creates a Wi-Fi hotspot!

Watch IMG_0433.MOV below for an overview of what it'll look like and what it does.

If you don't have an Android (boo-urns!) then you can still use part of this guide (what you're looking at now) to make a case for ANY phone -- sans NFC tags.
Make a (NFC-enhanced) slip case for your phone
IMG_0433.mov5 MB

Step 1: Gather your materials.

Make a (NFC-enhanced) slip case for your phone
To make the paper sizing template:
* Blank sheet of paper
* Ruler
* Pencil
* Scissors
* Scotch tape or glue

To make the outer part of the case:
* Felt (or some other fabric for the outer part of the case)
* Thread to match felt
* Sewing pins
* Sewing machine (recommend but not required)

To make the inner part of the case:
* Foam sheet

To do the NFC stuff:
* 4 NFC stickers (the anti-metal kind): http://www.tagstand.com/collections/anti-metal-nfc-stickers/products/mifare-ultralight-white-metal-proof-nfc-sticker-circle-30mm-diameter
* Radio frequency blocking fabric: https://www.inventables.com/technologies/metalized-fabric
* Marker
* Hand sewing needle

And, of course, you'll need a phone. (An Android device with NFC support is required to complete the entire project.)

Step 2: Make a paper sizing template using your phone and a blank piece of paper.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
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Make a cutting template out of paper. Grab your phone, a blank piece of paper, a ruler, and a pencil/pen.

Watch IMG_0357.MOV for an introduction. Click through the photos for notes. And watch IMG_0372.MOV for a look at the finished template.
Make a (NFC-enhanced) slip case for your phone
IMG_0357.mov2 MB
Make a (NFC-enhanced) slip case for your phone
IMG_0372.mov4 MB

Step 3: Cut out the outer fabric using the template. Fold and pin.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Use the template to cut out the outer layer fabric. I used grey felt here.

Watch IMG_0377.MOV for an intro. And IMG_0379.MOV for the folding/pinning part.

If your fabric has a "right" and a "wrong" way, make sure that you fold the fabric with the right way facing each other because you're going to be sewing the sides and then flipping it inside out.

Make a (NFC-enhanced) slip case for your phone
IMG_0377.mov2 MB
Make a (NFC-enhanced) slip case for your phone
IMG_0379.mov3 MB

Step 4: Cut out some thin foam for the inside of the case.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Moving onto the inside layer, cut out the foam but exclude the hem and inseam allowances.

IMG_0391.MOV answers the unasked question, "Why foam?"

IMG_0395.MOV shows how the cut foam will be placed in the outer layer with your phone. Double-check how well your phone and the foam fits into your outer case and re-pin for snugness if necessary.


Make a (NFC-enhanced) slip case for your phone
IMG_0391.mov5 MB
Make a (NFC-enhanced) slip case for your phone
IMG_0395.mov3 MB

Step 5: Sew up the sides of the outer layer.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Head over to the sewing machine. If you don't have a sewing machine you could do this by hand.

Sew the inseam but start your stitch 1cm down from the top to allow for the hem to be folded down.

IMG_0405.MOV is a video version of the photo.

When you're done sewing, trim off the excess fabric in the inseam but don't get in too close to the stitch -- make sure there's a little bit of breathing room.


Make a (NFC-enhanced) slip case for your phone
IMG_0405.mov5 MB

Step 6: Flip fabric inside out and re-insert foam.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Flip the fabric right-side out and put the foam back in.

Then re-insert your phone. Ta da! It fits!

Step 7: Program the NFC tags.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
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These are "anti-metal NFC stickers" purchased from tagstand.com: http://www.tagstand.com/collections/anti-metal-nfc-stickers/products/mifare-ultralight-white-metal-proof-nfc-sticker-circle-30mm-diameter

Because they are going to be placed onto a special radio frequency (RF) blocking fabric, we need the extra isolation that the anti-metal NFC tag offers.

Download an app called "NFC Task Launcher" also by Tagstand from Google Play (aka Android Market, https://play.google.com/store/apps/details?id=com.jwsoft.nfcactionlauncher). It lets you save tasks to your NFC sticker so when it's scanned, it just does it automagically!

Watch IMG_0290.MOV on how to make an NFC tag for those times you need to be very quiet like during class, a meeting, or at the movies.

Watch IMG_0292.MOV on how to make an NFC tag for those times you have a hard time hearing your phone like at a party, or when your phone is at the bottom of your purse.

Repeat for "default" but use settings for how you typically would like to hear your phone ring/vibrate, outside of the case. Say you sit down at a cafe and want to see your screen; pull it out and rest it on top.

Watch IMG_0302.MOV on how to make a 4th tag for turning on a wifi hotspot, or leave this tag for another day.
Make a (NFC-enhanced) slip case for your phone
IMG_0290.mov5 MB
Make a (NFC-enhanced) slip case for your phone
IMG_0292.mov4 MB
Make a (NFC-enhanced) slip case for your phone
IMG_0302.mov4 MB

Step 8: Special sauce: Radio Frequency (RF) blocking fabric

Make a (NFC-enhanced) slip case for your phone
Watch IMG_0414.MOV so I can introduce you to this cool fabric that blocks radio waves. But only the radio waves of NFC chips. Science FTW!

I got this fabric from inventables.com: https://www.inventables.com/technologies/metalized-fabric
Make a (NFC-enhanced) slip case for your phone
IMG_0414.mov5 MB

Step 9: Place the tags onto the RF blocking fabric.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Cut out 2 small squares of this fabric.

Take your "quiet" NFC tag and peel off the sticker backing and place it onto one piece of fabric. Put "loud" onto the other.

Stick the 2 other tags to the other side of the fabric pieces.

Watch IMG_0418.MOV for how everything so far will fit together.
Make a (NFC-enhanced) slip case for your phone
IMG_0418.mov5 MB

Step 10: Sew the RF fabric + tags onto the foam.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Take the foam out of the felt and sew the loud/wifi patch to the foam. It's important that the loud side is facing inwards!!

Repeat for the silence/default patch and make sure "silence" is facing inwards.

No one is going to see the stitching so it's okay if you're a bit sloppy. :) Just make sure it's in there securely.

When you're done, put it back into the outer felt layer.

Watch IMG_0423.MOV to see it 90% assembled and the case in action!

This is a also a good time to mark the sides of the case with icons or decals so you know which side is which!
Make a (NFC-enhanced) slip case for your phone
IMG_0423.mov5 MB

Step 11: Last step! Clean up the opening hem.

Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
Make a (NFC-enhanced) slip case for your phone
You can now fold the felt over the foam and hand sew to make a clean hem.

But I kind of liked this grey and black layering so I ended up evening the felt up with the foam by cutting off the excess, then hand stitched with purple thread.

Yay! Sexy and functional.

Hope you enjoyed my first Instructables!
 
 

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