Product benchmarking performed through research and in person interviews helped establish the desire for a compact and lightweight option that has a bit more punch than a typical electric screwdriver, but not as heavy duty as a power drill.
An underlying theme throughout the interviews I conducted was the “right tool for the right job.”
Electric screwdrivers are often used to supplement a lack of strength and primarily used for assembly and “building on the fly.” Users claimed that looks did matter, as they often judged products by their cover.
I took apart two cordless electric screwdrivers to better understand how they are made, what is going on inside of them, and to learn how I might make my own. I thought a good price point would be in between these two options.
Sketches were further developed in clay to better understand the form of the drill and how the underlying primary shapes would interact. The armatures were created with the help of 3D printing.
My Sophomore year I built my own printer, and I used that to prototype the models for this project. I also printed my classmates models throughout the semester.
I found that combining clay and 3D printed models was a great way to quickly iterate on the fit of the handle.
I designed the internals of the drill so that I could create a working model.
After user testing and conversations with users I decided to revise my design. I addressed ergonomics and fit of the handle to be more in line with improvements suggested by users. Additionally, I wanted to further address manufacturing requirements, and create more sound surface geometry.
I recreated the model from the ground up to be more robust and to better withstand any desired changes within the design intent. This meant creating cleaner surface geometry that held consistant curvature.
I readdressed the internal ribs to better hold components and allow for wires to flow more easily between parts.
Recharge with any micro USB cable - no more keeping around an easily lost cable.
There are two sets of locater pins to assist in assembly, full 2º of draft on each part, internal ribs and structure to support components.
I wanted a form that would communicate to users that it is robust, rugged, and uncomplicated. That this cordless electric screwdriver has the wear-withal to combat any DIY challenge.