Product Assessment

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Product Assessment

What is the intended use of the product?

The intended use of the corner sander with the cord attached to it and the cordless battery-powered corner sander are to sand wooden and steel surfaces. This product is intended for both home and professional use. For home they include; self home improvements, "do-it yourself" projects, and hobbies. For professional they include; construction, carpentry, and renovations.

These products perform through a variety of different functions. They include, but are not limited to, polishing/scrubbing porcelain and metal surfaces and removing rust and paint.

How do you think the product works?

In order for the corner sander to work it has to be powered by electricity, the switch can then be moved to the on position. This will then complete a circuit powering the motor nearing the base of the product, causing the section containing the sanding or buffing surface to undergo an oscillating motion. This produces enough friction between the pad and the applied surface to perform the intended task (i.e. sanding,buffing, refinishing, etc.).

These products use mechanical energy through the action of the user applying pressure to the product as well as moving it around. This mechanical energy is then converted to heat energy produced by the friction between the product and the applied surface.

These products also use electrical energy acquired from the power source. This electrical energy is then used to power an imbedded motor where it is transformed into mechanical energy which causes the lower pad to oscillate. This action creates a constant frictional force due to the constant movement of the pad about the applied surface. The motor also converts its rotational kinetic energy into vacuum energy, causing the debris to accumulate in the dust bag, which only occurs in the corded corner sander because the cordless sander does not have a vacuum inside.

The cordless battery-powered corner sander also uses chemical energy, when in the battery it converts chemical energy to electrical energy. The corded sander cannot perform this task though because it does not have a battery.

Is the product currently functioning?

Yes the corded corner sander it functioning very well. There are no unusual noises coming from the sander. For the cordless battery-powered corner sander we are not sure on whether or not it runs because we are not in possession of a battery for the sander to run.

How complex is the product?

The complexity of these products toward similar devices is the relatively basic structure and incorporated components, both internally and externally. There appears to be a small number of intricate components within these devices. Each individual component serves in one main role toward the assembly of the devices. Approximately 20-30 components are used for the construction of the cordless corner sander. Approximately 30-40 components are used for construction of the corded corner sander.


The materials that are clearly visible are plastic, rubber, basic Phillips’ head screws, and Velcro. The materials that are most likely inside the product but are not visible are wires, a motor, screws, soldering compound, and a spindle and counterweight system.

If you had to use this product, would you be happy with it?

We believe that we would be happy with the corner sander with the cord attached to it after researching different sites for consumer review; most consumers agreed that this was a good and reliable product and was easy to use. It is also a very comfortable product because of the rubber grip that it has, which also absorbs some of the vibration that the product can cause. The only noticeable complaint for this sander is the short power cord that comes with the sander, but an extension cord can easily resolve that problem. Since the complexity of the internal components is minimal, this product does not require regular maintenance. To maintain optimum performance and ensure a longer lifespan, periodically clean both the sanding pads and scrubbing sheets.

We also believe that we would be happy with the cordless battery-powered corner sander. It has also received good reviews. Similar to the corner sander with cord attached to it the cordless sander is very comfortable to use because of the rubber grip that it has and it also absorbs some of the vibration that the product and cause. This easy-to-use sander is a convenient and reliable device. There are also few disadvantages to this product. Absence of a vacuum system is one drawback primarily because of the inability to contain excess materials such as dust particles. The placement of the power switch on the device may be problematic to users. Ability to adjust the power setting may interfere with maintaining grip on the tool. Overall, the cordless battery-powered corner sander is a dependable product. When both sanders are put in comparison, this product is not as good as the corner sander with the cord attached. Nevertheless, the cordless battery-powered sander allows for better portability. This product also does not require regular maintenance because it is built to last and the components that are inside of it are not very complex. As stated previously, maintenance of the cordless sander would only be required to sustain optimum performance and ensure a longer lifespan.


The cordless Ryobi corner sander has very few manufactured products to compare to in the market. A competitor such as Craftsman’s pad sander is one of the few cordless corner sanders currently offered. Both, the Craftsman and the Ryobi cordless corner sanders have little or no difference between each other. Not only do these products cost around the same price of $30.00 (according to Home Depot and Sears), but they are also similar in performance. The only noticeable difference between these products is the fact that the Craftsman requires 19.2 Volts whereas the Ryobi requires 18 Volts.

The corded Ryobi corner sanders are also not alone in their respective market. Competitors such as Makita and Black & Decker provide similar versions of corner sanders. These rival brands offer devices with similar capabilities such as sanding and buffing surfaces. Cost varies with complexity and performance of the sanders, but is traditionally in the $30-$100 price range. According to the Home Depot website, the price of the corded Ryobi corner sander is $29.97, the Black & Decker detail sander is $39.97, and on the Makita website a detail sander is $59.99 (MSRP). The greatest advantage to the corded Ryobi corner sander when compared to its competitors, it performs similar tasks at a more cost-effective price. One of the main disadvantages of the Ryobi is that the cord is too short and increases the chance of having to depend on an extension cord.