A1: Electric Screwdriver
This electric screwdriver is outfitted with 10 different screwheads, a detachable battery, a fast/slow speed setting, and a digital count of number of screws screwed in/unscrewed.
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The design of this screwdriver takes from OXO which is known for their comfortable, easy to use tools. Similar to their products, this tool has a thick sturdy base with a rubber grip and hold indents for maximum comfort. The use of clay is intended to simulate the real weight and feel of this product.
Sketches
The Base
- Detachable, rechargeable battery
- Count of # screws unscrewed/screwed in
- Count will switch depending on direction of screwdriver
- Will reset when turned on/off
- Rubber grip running along center of product
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The Screwheads
- Acrylic cylindrical casing to display all 10 tips
- 5 sizes each of Philips and flathead
- Left/right buttons to cycle through tips
- If tip is present, pressing center button will put away and release current tip
- If no tip is present, pressing center button will select tip to be used
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Other Features
- Sliding switch (up and down) to cycle between off, fast, slow
- Mechanical switch (left and right) to choose direction of screwdriver
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Final Sketch to be Modeled
Analysis
What Worked Well
- Placement of switches optimal to not accidentally turn on/off
- Markings are easy to understand and intuitive
- Grip of product feels comfortable in hand
- Simplistic but functional design
Improvements
- Screwhead selection needs some kind of lock function to not accidentally remove tip in use
- Potential for screwhead to auto lock when screwdriver is turned on
- Initial digital display proved to not add additional functionality
- For cost reasons, switch to clear casing
Peer Feedback
- Has a really nice feel and hold and appreciates the rubber grip
- Likes the acrylic casing because it displays screwheads effectively
- Location of switches and buttons is logical and makes it difficult to accidentally switch something
- What happens if a tip breaks or needs to be replaced?
- Unnecessary to allow users to open screwhead chamber. Instead make the tips removable and if one needs to be replaced, user can put the new tip in and press the select button to lower tip into chamber
- Any tip can be put into any slot since all tips have the same base
- What are some safety features that can be implemented?
- Auto lock feature where if the screwdriver is on, a tip cannot be removed or released into chamber. Can't turn screwdriver on if tip is not locked in
- Might not be intuitive that existing tip has to be lowered and released before new tip can be attached
- With safety features introduced above, this shouldn't be an issue