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August 2nd 2022
Today I am very excited as I start assembling the main enclosure! While building, I gained a greater appreciation for the mechanisms, engineering and the finer details. I decided to build the hull first, as it will help me to create the model for the inner and outer frames using Computer Aided Design (CAD). The inner frame will go inside the hull and will act as a surface to mount the components such as camera, battery, and main computers. The outer frame will go outside the hull and will support the four thrusters. Getting a feel of the dimensions of a real life model while building will help in developing the CAD with precision.
Image 1: WetLink Penetrator Diagram
The hull consists of three main elements. The central tube, and the two end caps—one 10-hole aluminium cap, and one dome cap. The end caps attach to the central tube using three sets of O-ring flanges which are coated in silicon grease which allow the end caps to slide in and create a waterproof seal. The 'WetLink Penetrators' use a thick rubber ring (shown in blue in image 1) which, when tightening the bolt, squeezes the ring around the wire that is penetrating through it which creates a high pressure waterproof seal.
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