Learn how to:
- Make an e-textiles product from scratch.
- Create and use a soft battery holder.
Level of difficulty:
- Intermediate. Requires basic textiles skills – hand sewing, machine sewing, CAD design skills, and a basic understanding of simple electronic circuits.
Parts List:In order to make your own SmartBand you will need:
- Base & top fabric (black felt) (220 x 70mm).
- Circuit fabric (black cotton) (210 x 60mm).
- Conductive fabric.
- Conductive thread.
- Ordinary black sewing thread.
- 1 x 3V coin cell.
- 3 x Magnetic switches.
- 3 x Easy sew LEDs.
- hook and loop fastener.
- 8cm length of 2mm black cable.
- Snap fastener.
You will also need the following equipment:
- Large eye e-textile needle.
- Sewing machine.
- Fabric Scissors.
- Laser Cutter (Optional).
- 3D Printer (Optional).
- Hand drill.
- Multi-purpose glue.
Step-by-step guide to making a SmartBand
If you have access to laser cutter you can laser cut the fabric for a clean, accurate finish.
The top felt layer should have three sets of holes, one set for the LEDs, one for the magnets and one for the coloured felt indicators.
The other felt layer should not have any holes in it. The cotton layer can have a very fine engraved circuit line in it.
If you don't have a laser cutter these can all be carefully cut by hand.
We've provided a simplified circuit diagram above to help explain how the circuit is laid out.
Step 2Using fabric scissors, cut up three small squares of felt, one red, one blue and one green. Glue these pieces to the inside of the top felt piece, directly under the three circles in the order green – blue – red.
Step 3Using the sewing machine load up the bobbin with conductive thread.
Step 4see here for instructions to make one) into place. Hand sew the LEDs and switch magnets into place using the conductive thread, making sure the positives and negatives of all the components are correctly placed. fault finding guide.
Step 6Note: If you don't have access to a 3D Printer it is simple to create this piece from normal fabric and connect it to the SmartBand using a strip of conductive fabric.
Step 8Wear your new SmartBand knowing that if you're stuck you can discretely catch your teachers eye. here. We'd like to thank all of the students for their hard work over the seven week course, and wish them all the best in their future careers.
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