RE – Inflatable Vest

Cover-RE

 

Instructables:

Office workers are constantly hunched over their laptops and computers for long hours every day. This causes back pains and bad posture. The Inflatable Vest is an interactive reminder for people to correct their bad habits. Every 20 minutes bubbles will inflate, forcing the user to stretch back and manually deflate the bubble. This makes users engage in a short break to exercise their muscles and stretch out the back.

Materials:

Inflatable Bubbles

Micro water pump: CS1730PW, DC6.0V

From McMaster-Carr:

Tube 1/16 ID: 51135K12

Tube 1/8 ID: 51135K15

Checking valve: 2987K45

Tube barbs: 53415K281

Reducing Connectors: 5463K47

Disposable Finger Cot: 5291T6

Rescue tape:

http://www.amazon.com/3M-03625-Wrap-Repair-Silicon…

Vest Part

Silicon film (3 ft * 2 ft)

Rubber wire: (Found in Michaels)

Arduino Part

RTC Timer :

https://www.adafruit.com/products/264

Aduino uno

Tools

Laser cutter

Make the bubbles

DSC_0019 DSC_0016

Cut the finger cot to the size you want.

Bring two tubes with 1/8 ID (One short, one long), 125psi checking valve and 15psi checking valve.

Tie with rescue tape. Make it tight so air will not leak out.

Make 5 more

Make the inflatable system

DSC_0002 DSC_0003 DSC_0010 DSC_0011

 

Build up the inflation system as the picture shows. Use reducing connecter to connect 1/16 ID tube and 1/8 Id tube.

Connect air pump to tube barb with the 1/16-ID tube.

*For all the connections, their ID must be matched up.

*Pay attention to the direction of checking valve

Test the bubbles with Arduino 

After wiring all the components, connect the Arduino to your computer or a 9V battery to power the pump. If your balloon is not inflating, check over your wiring.

When the balloon is inflated, turn off the pump and squeeze the balloon. Check if the air could leak out from the checking valve. Check for any air leaks in the checking valve.

Keep pumping up the balloon to test the 50 psi valve. If the air pressure in the balloon is under 50 psi, no leaks should occur. If the air pressure is over 50 psi, air should start to leak out of the valve.

*The instructions above show how to make the inflatable unit. You can try to design your own structure (provide suggestions or examples.

Make the vest

IMG_3327 DSC_0140 DSC_0154 DSCN9124 DSCN9126

In this part we’re going to make the balloons wearable. You can either buy a vest/shirt or make one by yourself.

Cut the silicon into two 2 ft by 1.5 ft pieces. Using the laser cutter to cut out the pattern.

Connect the silicon pieces together as pictures show.

Paste the Inflatable Part to the vest. What did you use to paste them together.

I also add EL wire to the vest to make it look cool.

Arduino part

DSCN9069

Picture of Arduino part

You can edit the inflating time (pumpTimeron) and restart time (pumpTimeroff).

In my coding, the default time is:

pumpTimeron: 1 minute

pumpTimeroff: 15 minute