# Source: https://learn.adafruit.com/biometric-security-box/parts.md

# Biometric Lock Box

## Parts and Preparation

Materials:

- Lock Box&nbsp;- This tutorial uses a "Vaultz" 4x6" card file box. &nbsp;But it can be adapted to fit other sizes or brands.  
- [Adafruit Menta](https://www.adafruit.com/products/795) - or other Arduino compatible microcontroller.  
- [Fingerprint Sensor](https://www.adafruit.com/products/751)&nbsp;  
- [Membrane Keypad](https://www.adafruit.com/products/419)  
- [Lighted Switch](https://www.adafruit.com/products/482)  
- [12v power adapter](http://www.adafruit.com/products/798)  
- [Panel mount power jack](http://www.adafruit.com/products/610 "Link: http://www.adafruit.com/products/610")  
- [MOSFET](https://www.adafruit.com/products/355)  
- [Diode](https://www.adafruit.com/products/755)  
- [Small push-pull solenoid](https://www.adafruit.com/products/412 "Link: https://www.adafruit.com/products/412")  
- Brass Strip - 1/2" x .032"&nbsp;&nbsp;  
- Pop Rivets - 1/4"  
- [Wire](https://www.adafruit.com/index.php?main_page=adasearch&q=hook-up+wire)  
- [Header strip](https://www.adafruit.com/products/392)
- [Heat-shrink tubing](https://www.adafruit.com/products/344 "Link: https://www.adafruit.com/products/344")  
- Wood  
- Cardboard  
- Adhesive Felt  
- Misc tape, screws, cable ties as needed.

## Remove lining from Lid
Carefully peel the fabric lining from the inside of the box lid. &nbsp;You can discard the lining.  
![biometric_2012_12_28_IMG_1114-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/246/medium640/biometric_2012_12_28_IMG_1114-1024.jpg?1396794482)

## Lay out components
Arrange the major components in the lid and mark their positions. &nbsp;Be sure to leave room for wiring and spacers to support the false lid.  
![biometric_2012_12_28_IMG_1117-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/247/medium640/biometric_2012_12_28_IMG_1117-1024.jpg?1396794492)

## Measure and mark cutouts
Mark the cutouts for the fingerprint sensor, power switch and keypad cable on the top of the lid. &nbsp;Also mark the position for the power jack on the back of the box.  
![biometric_2012_12_28_IMG_1115-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/248/medium640/biometric_2012_12_28_IMG_1115-1024.jpg?1396794498)

## Cut the cable slot
Use an X-Acto or utility knife to cut a rectangular slot for the keypad cable.![biometric_2012_07_02_IMG_0356-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/249/medium640/biometric_2012_07_02_IMG_0356-1024.jpg?1396794507)

## Drill the holes
Drill holes for fingerprint sensor, power switch and power jack.![biometric_2012_07_02_IMG_0354-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/250/medium640/biometric_2012_07_02_IMG_0354-1024.jpg?1396794515)

## Cut a false lid
We will use a false lid to hide the circuitry inside the lid of the box. &nbsp;Cut a piece of 1/8" (3mm)&nbsp;plywood or hardboard to fit the inside of the lid. &nbsp;Also cut some 0.85" (22mm) spacer blocks to go under&nbsp;the false lid.  
![biometric_2012_07_04_IMG_0369-1024.jpg](https://cdn-learn.adafruit.com/assets/assets/000/003/251/medium640/biometric_2012_07_04_IMG_0369-1024.jpg?1396794525)

- [Previous Page](https://learn.adafruit.com/biometric-security-box/overview.md)
- [Next Page](https://learn.adafruit.com/biometric-security-box/circuitry.md)

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