Case Study:
Underwater Impact Wrench
Research
Market research
Out-Of-Water Power Tools
Dewalt
Proven reliability
Longer lasting battery lives
High quality
Rubber grip textures and triggers
Bostitch
Have a presence in the pneumatic industry
Reliable
Well built tools
Quick change pneumatic line fittings
Market research
Underwater Power Tools
Stanley Overview
Wide range of tools
Rugged & pneumatic
Require an external tank or air lines that run to the surface to operate.
Nemo
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Advantages: Cordless, Smaller profile
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Disadvantages: Rugged design, Uncomfortable grips, Short work times, Inability to dive deep
Amron
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Advantages: Lighter design, Smaller profile, Can dive deep
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Disadvantages: Pneumatic lines, Uncomfortable grips, Heavy out of water
Interview
Industry Professional
Eric hubbard
Instructor at CDA Technical Institute School for Commercial
Diving
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Feedback // Stanley Underwater Impact
Wrench
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Lots of hand fatigue while using the wrench - usually end up using a buoy to counter some of the weight
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The pistol grip impact wrench causes more hand fatigue than having the handles on the back & side.
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Durability of the materials in saltwater tends to be an issue.
Understanding the user
Saltwater battery
Advantages
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Saltwater is its energy source.
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Safer, cheaper and longer lasting than lithium ion batteries. Safe water-based electrolyte
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Does not contain heavy metals, toxic chemicals, inorganic solvents
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Environmentally friendly
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Charge quickly
Neutral buoyancy
Buoyancy force is the upward force that is exerted on an object that is immersed in water.
aluminium tank buoyancy
Sink or Float
Aluminum tanks are negatively buoyant when filled with air. As air leaves the tank, it becomes more positively buoyant. When the tank is empty, it will float to the surface
Design
Handle & trigger design
Based on the user Feedback, the single finger trigger was more comfortable, the curved trigger was easier to use
and the short trigger is the most effective.
Aesthetic research & color blocking
