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Pin Pad

Compact, Stylish, Maximum Protection

Completion Date:
May 2008
Concept Project
Learn More About the Pin Pad Design


To design a hand held, ergonomic, economic & compact pin pad using surface modelling but taking into consideration the following design constraints:

• Card reader: 55mm x 40mm x 5mm

• LCD : 65mm x 45mm x 5mm

• PCB : minimum dimensions 120mm x 60mm x 15mm

• Rubber keypad – minimum of 12 Keys

Initial Sketches

Surface Modelling and Design Process

Initial curves and fixed components laid out before starting any surface modelling.

Style, Boundary Blending, Projection, Trim & Fill surfaces were used to create the outer surfaces of the pin pad as illustrated below:

Developments of the Ergonomic Surface

Using the skeleton layer I was able to improve the curves until the shape was ergonomically suitable

Adding the Details

Ribs and other details are added by using extrude surfaces and thicken. These features will help to place the internal components

Collision Detection Analysis

The collision detection analysis is very important to ensure correct placement and assembly of components.

Aesthetically Designed

The pin pad has been designed to provide a comfortable grip and allow easy viewing of the LCD screen


Compact Layout Design

1. Bottom Body, 2. Card Reader, 3. Key Pad, 4. LCD, 5. LCD Clamp 6. LCD PCB, 7. Lens, 8. Master PCB, 9. MPTSO101, 10. MPTSO103, 11. MPTSO105, 12. PCB Master, 13. Protective Cover, 14. Top Body



Compact Design


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