Post Mid-Term Review and Layout Drawings October 9, 2006 Team Moondogs Chris Culver Rahul Kirtikar Elias Krauklis Christopher Sampson Michael Widerquist

Overview Post Mid-Term Review Post Mid-Term Review Questions and Suggestions Brought up in the Presentation Questions and Suggestions Brought up in the Presentation Written Questions, Concerns and Suggestions Written Questions, Concerns and Suggestions Overall Compliments and Feelings from Audience Overall Compliments and Feelings from Audience Modifications to Design Modifications to Design ■ Updated Layout Drawings

Post Mid-Term Review: Questions/Suggestions from Presentation 1. Does the idea of manually compacting trash really save time and energy? Yes, especially for households with outside trash receptacles far from the house. Project aim is also to increase environmental friendliness by eliminating wasted space. Yes, especially for households with outside trash receptacles far from the house. Project aim is also to increase environmental friendliness by eliminating wasted space. 2. Is there a market for this? Of course, huge market for automatics already. With a cost up to 1/8 th the price and no installation needed, manual market is very probable. Of course, huge market for automatics already. With a cost up to 1/8 th the price and no installation needed, manual market is very probable. 3. Will compacting force be great enough? Yes, with use of hydraulics, a great mechanical advantage can be achieved. Yes, with use of hydraulics, a great mechanical advantage can be achieved.

Post Mid-Term Review: Questions/Suggestions from Presentation 4. Will the lid be strong enough to counter-act the force of the ram? Yes, an engineering analysis will be performed to ensure adequate strength in the design. Yes, an engineering analysis will be performed to ensure adequate strength in the design. 5. Will the lid be too heavy? A strong plastic will be used to decrease the weight of the lid. A strong plastic will be used to decrease the weight of the lid. 6. Will a large number of required pumps inconvenience the operation? The number of pumps versus the compacting force will be optimized to result in adequate compacting force with minimal pumps. The number of pumps versus the compacting force will be optimized to result in adequate compacting force with minimal pumps.

Post Mid-Term Review: Written Questions/Suggestions 1. Suggest using a bag for cleanliness and ease of use. It is decided that a bag will definitely be used. It is decided that a bag will definitely be used. 2. How will compacted trash be discarded? The inner receptacle will be both removable and lined with a trash bag. The inner receptacle will be both removable and lined with a trash bag. 3. Will this design present a cleanliness issue? The use of a trash bag and removable container will make cleaning the trash receptacle easy. A detachable ram may be considered in order make the ram cleaning easier, just as in automatic compactors. The use of a trash bag and removable container will make cleaning the trash receptacle easy. A detachable ram may be considered in order make the ram cleaning easier, just as in automatic compactors.

Post Mid-Term Review: Written Questions/Suggestions 4. Will the lid be locked down? Yes, most definitely. Yes, most definitely. 5. What is the release mechanism to allow the actuator to retract? A switch or knob will be used to release the pressure and allow gravity to return the receptacle/actuator to the bottom. A switch or knob will be used to release the pressure and allow gravity to return the receptacle/actuator to the bottom. 6. The trade off taking out the trash less versus pumping to compact seems poor. We believe most people would enjoy having compact, efficient trash to dispose of with less frequent trips to the outside garbage container. We believe most people would enjoy having compact, efficient trash to dispose of with less frequent trips to the outside garbage container.

Post Mid-Term Review: Written Questions/Suggestions 7. Concerns about the size and usability? The size will be as close as possible to that of a normal trash can and an easy to use design is a top priority (just lock the lid, pump and initiate the release knob when finished). The size will be as close as possible to that of a normal trash can and an easy to use design is a top priority (just lock the lid, pump and initiate the release knob when finished). 8. Why not compact in the large outside receptacle where space is a problem? This would present a larger problem requiring huge amounts of force and would not reduce the number of trips outside. This would present a larger problem requiring huge amounts of force and would not reduce the number of trips outside. 9. A paper bag is cheap and strong, suggest using. This is a good idea, it will be considered. This is a good idea, it will be considered.

Post Mid-Term Review: Written Questions/Suggestions 10. What about odor? The lid will contain odor. The lid will contain odor. 11. What is the cost, will it be expensive? The cost will be kept to under $100, 1/5 to 1/8 the price of automatics. The cost will be kept to under $100, 1/5 to 1/8 the price of automatics. 12. What materials will it be made of. To reduce weight, high strength plastics will be highly used with possibly a steel inner receptacle (similar to that in automatics). The ram and hydraulic components will be constructed of steel as well. To reduce weight, high strength plastics will be highly used with possibly a steel inner receptacle (similar to that in automatics). The ram and hydraulic components will be constructed of steel as well.

Overall Compliments and Feelings from Audience Most people understood the goal and design of the project. Most people understood the goal and design of the project. A few (4) did not grasp the purpose for compacting trash to reduce outside trips and environmental space. A few (4) did not grasp the purpose for compacting trash to reduce outside trips and environmental space. Some (2) were concerned about a market for the idea. Some (2) were concerned about a market for the idea. Lots (9) suggested using a bag. It is agreed that a bag will most certainly be used. Lots (9) suggested using a bag. It is agreed that a bag will most certainly be used. Some (3) were concerned about the compacting ability. Some (3) were concerned about the compacting ability. Generally people liked the idea and thought it useful. Generally people liked the idea and thought it useful. The presentation was well accepted and understood. The presentation was well accepted and understood.

Modifications to Design A bag will be used. A bag will be used. Plastics will be used to reduce weight. Plastics will be used to reduce weight. Some compacting strength will be sacrificed to reduce the number of pumps. Some compacting strength will be sacrificed to reduce the number of pumps. An easy to use release valve will be implemented. An easy to use release valve will be implemented.

Layout Drawings Overall View

Solid Inner Container View Inner Container

Clear Inner Container View

Hydraulic Assembly View Ball or Needle Valve Check Valves Tubing Sump Master Cylinder Slave Cylinder Foot Pedal

Exploded View

Questions?