Widget

Ah, the trusty widget! The widget was designed to hold and protect the internal optics of the cystoscope medical device redesign. While the widget may look simple, there are several key features that aid the component in accomplishing its task. The widget has two flat surfaces (ear-like structures) that allow the component to be mounted inside a cystoscope. The widget also contains a bottom and top hole to accept locating pins, three wire entry holes to provide a slot for electrical connection, and tapered features to assist in component fit.

More information about the cystoscope can be found here

More information about the sheet metal fixture for the widget can be found here

Widget - Initial Sketch

The widget was sketched in third angle projection and perspective views based on a real-life model before designing in Fusion 360.

IMG: Initial Widget Sketches

Widget - Design

Dimensions of a real-life widget model were measured using a caliper, and then an initial widget design was crafted in Fusion 360.

IMG: Widget CAD Model

Widget - Engineering Drawing

Fully-dimensioned engineering drawing was generated for the widget in Fusion 360.

IMG: Fully-dimensioned Widget Engineering Drawing

Widget - Design for Manufacturing

The initial widget design was not optimized for low-cost tooling and manufacturing during injection molding. The widget design was updated to add three degree draft angles to all surfaces, to change top and bottom holes to slots to remove the need for side actions, and to make the side ear-like structures flush with the top opening of the widget to remove over-hanging features.

IMG: Updated Widget Design for Injection Molding

IMG: Improved Draft Analysis from Original Design to Updated Design