Group 1 2012 Gate 5
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The parameters of the analysis project required us to disassemble the piano down to its base components, and later reassemble the piano back to its original working functionality. In general, both disassembly and reassembly were completed quickly and without major setbacks. We were somewhat surprised to see that virtually all of the piano was held together with Phillips head screws and glue. This made the disassembly and reassembly considerably easier than initially anticipated. | The parameters of the analysis project required us to disassemble the piano down to its base components, and later reassemble the piano back to its original working functionality. In general, both disassembly and reassembly were completed quickly and without major setbacks. We were somewhat surprised to see that virtually all of the piano was held together with Phillips head screws and glue. This made the disassembly and reassembly considerably easier than initially anticipated. | ||
====Product Disassembly ==== | ====Product Disassembly ==== | ||
| − | The following is an overview of the disassembly process. For an in-depth review, see [[Group 1 2012 Gate 2|Gate 2: Product Dissection]]. | + | The following is an overview of the disassembly process. For an in-depth review, see [[Group 1 2012 Gate 2|Gate 2: Product Dissection]]. ever cannot be removed from the action without first removing a select few mutes from the action to expose its fastening screws. |
| + | #Remove screw-fastened pieces of the housing. | ||
| + | #Remove pedal assemblies, pedal bars, and linking dowels. | ||
| + | #Detach keys from action pull rods and then remove. | ||
| + | #Remove action from housing. | ||
| + | #Remove action end brackets from action. | ||
| + | #Remove hammer springs, hammer rest, and mute lever from action. | ||
| + | #Remove mutes and action linkage/hammer sub assemblies. | ||
| + | |||
| + | When dissecting the action, we found it extremely helpful to rest it on an elevated pedestal to allow access from as many angles of the action at once as possible. It is also important to note that several of these general steps can or must occur concurrently. For instance, the pedals are connected to the action by two easily removed dowels, their removal has almost no impact on the removal of the action. Conversely, the mute l | ||
====Product Reassembly ==== | ====Product Reassembly ==== | ||
Revision as of 20:20, 13 December 2012
In this gate, we finalized our findings and reviewed our process and presented them in a technical report. In addition to a written report about the project, we also presented a proposed revision discussed in Gate 4 to the class and instructors.
Contents |
Technical Report
Executive Summary
Product Analysis Summary
The analysis process for the piano primarily focused on a dissection and reverse-engineering of components and systems. The following is an overview of the main stages of analysis we performed.
Dissection and Reconstruction
The parameters of the analysis project required us to disassemble the piano down to its base components, and later reassemble the piano back to its original working functionality. In general, both disassembly and reassembly were completed quickly and without major setbacks. We were somewhat surprised to see that virtually all of the piano was held together with Phillips head screws and glue. This made the disassembly and reassembly considerably easier than initially anticipated.
Product Disassembly
The following is an overview of the disassembly process. For an in-depth review, see Gate 2: Product Dissection. ever cannot be removed from the action without first removing a select few mutes from the action to expose its fastening screws.
- Remove screw-fastened pieces of the housing.
- Remove pedal assemblies, pedal bars, and linking dowels.
- Detach keys from action pull rods and then remove.
- Remove action from housing.
- Remove action end brackets from action.
- Remove hammer springs, hammer rest, and mute lever from action.
- Remove mutes and action linkage/hammer sub assemblies.
When dissecting the action, we found it extremely helpful to rest it on an elevated pedestal to allow access from as many angles of the action at once as possible. It is also important to note that several of these general steps can or must occur concurrently. For instance, the pedals are connected to the action by two easily removed dowels, their removal has almost no impact on the removal of the action. Conversely, the mute l
Product Reassembly
The reconstruction was a relatively simple process. Since group members already understood the subsystem layout and interaction, the rebuild went smoothly and quickly. Only two group members were needed for the reassembly. The reconstruction is covered more thoroughly in Gate 4.
Idunno. Pictures. That video if it turned out well.
- Put tons and tons of pictures in here
About screwdriver as the only tool
A bit about taking out the action. -taking apart the action.
Same for pedals.
Why we left the strings and plate in.
Analysis Process
Chris, write whatever you want as long as the bullshit to cynical realism ratio doesn't drop below 2.
Component Summary
Our analysis revealed that the upright piano can be generalized as consisting of three main components: the cast iron frame that holds the strings in place,the action that translates key depression into hammer movement, and the exterior wooden housing that supports and protects the other components.
For a more in-depth analysis of the components of the piano, see Gate 3: Product Analysis.
Action
Frame
Housing
Proposed Revisions
Injection Molded Action Linkages and Hammer Bodies
Half Size Keyboard
Chorded Keyboard
