Group 2 Gate 1

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Gate 1

Work Proposal

The product that our group will be reverse engineering is the Eager Beaver chainsaw. Given the complexity and number of moving parts present in this product it is necessary to take extraordinary caution to make sure we are able to put all components of the device back in their original working locations. For this purpose there will be 2 people documenting how the product is being taken apart. One person’s job will be to document a written instructions list that can be followed in reverse to reassemble the product. The other person’s job will be to capture a visual representation of each step with a digital camera. Visual and written documentation should be descriptive enough to allow the reassembly of the product by any given group member. The disassembly of the chainsaw itself will be a challenge again because of the number of components involved. On the outside alone there are 19 visible fasteners all of which can be removed with a socket wrench or a flat head screwdriver. One of the largest challenges we will face is not knowing exactly we will find inside of the chainsaw as far as fasteners go. It can be assumed that the fasteners will probably be similar to those found on the outside however we will also be prepared incase there is a need for more unique tools that may be needed for the fasteners used inside of the device as we will be in the machine shop with a large number of tools. We expect to find internal components of the chainsaw to be an engine, air filtration system, fuel tank, small chain oil tank, as well as a small alternator. Each one of these components will need to be examined, documented, and then dissected further. The engine will be the main focus of the dissection as it will be the most complicated component. From examining the chainsaw it can be seen that there is only one spark plug. This leads us to believe the engine will simply have one piston. This will assist in the dissection, as it will mean there are minimal moving parts as opposed to a 2, 3, or 4 piston engine which are much more complicated. The group in which we will be dissecting this product consists of five members. All of the group members are Mechanical Engineers and have a basic understanding of the physics that take place within a standard chainsaw. Although no one in the group has ever dissected a chainsaw before that is not to say no one has worked on complicated mechanical products. The group has several members who have worked on cars which have several matching components of those found in a chainsaw just scaled up to work in a vehicle. Another positive aspect to this group is that all 5 members live in the same building so group communication should be no problem at all. This being said it all of the group members are also very busy on a day to day basis and have limited time to work on this project. A huge challenge for this group is going to be finding the time to dissect and analyze the chain saw. The group is going to need to organize and learn to be flexible in order to accommodate everyone’s schedules.