Can Crusher By Kaylan Patel, Madeline Koldos, and Courtney Shadd

Agenda Group Development Timeline Problem Statement BackgroundCustomerScopeDeliverables 10 Steps of the 12 Step Process Refine the Design Lessons Learned

Roles O Leader: O Kaylan Patel O Scribe: O Maddie Koldos O Timekeeper: O Courtney Shadd

Team Constitution Article 1All team members will be on time. Article 2 No team member will make fun of another team member’s idea. Article 3 Respect is to be shown at all times by each team member. Article 4 After decision is made, team members will respect it. Article 5Members will live up to their commitments. Article 6 Team members will not blame other for failures. Article 7 No one-team member will dominate discussion. Article 8Team members will make an effort to contribute equally.

Timeline Plan DateActual Date Who’s Responsible Task StartCompStartComp 1/27 TeamTeam development 1/271/281/271/28Maddie Research Background information 1/302/22/12/2MaddieScope Statement 1/302/11/302/1MaddieDecision Matrix 2/22/42/12/4KaylanBrainstorm 2/62/102/32/27KaylanCAD drawings 2/102/112/212/24MaddieBuild Process 2/13 2/212/22CourtneyTest Plan 2/142/152/142/23MaddieBill of Materials 2/212/292/283/7 TeamBuild Prototype (Including Rebuild) 2/282/293/63/7TeamTest, Monitor, and Analyze 3/23/53/23/6TeamRefine the Design 3/53/83/13/8TeamCommunicate Results

Problem Statement O The can crusher for Roadrunner Trucking has to reduce the volume of the aluminum cans they dispose of by 70%.

Background O An easy way to reduce the amount of aluminum cans O Recycles larger quantities in smaller spaces O When cans are flattened it makes it easier to store and transport O Takes a total of 60 days for a can to go through the recycling process O Can crusher makes it easier to contribute to the recycling process

Customer O Roadrunner Trucking Company O Integrated Technology teacher Mr. Pritchard

Scope O Design and build a can crusher to reduce the volume of aluminum cans by 70% O Subject matter expertise: O Construction/ Technical – Mr. Pritchard O CAD – Mr. Hund O Calculations/ Math – Ms. Hernacki

O Materials: O ¼” hardwood plywood O ½” hardwood plywood O ¾” spruce O Four specific customer constraints: O The max space it can occupy is 18” x 24” x 30”. O Use a minimum of one simple machine O The aluminum can bin must hold 20 cans O Aluminum cans volume must be reduced by 70%

Deliverables O Can Crusher O Tech Report O PowerPoint

Research and Generate Ideas O The force to crush a can is lbs. O We could use wood glue, screws, or nails as adhesive O If the fulcrum point is closer to the load then more force will be applied O We could use hardwood plywood, spruce, or oak for our wood O Lever should be long for less input force O The volume of 20 crushed cans is in cubed O We should use mostly ¾” wood for it’s strength

Criteria and Constraints O Criteria: O It must use a minimum of one simple machine O The aluminum can must fall into the aluminum can bin once it is crushed. No human intervention is to be involved. O The aluminum can bin must slide in and out of the crusher. O All parts of the can crusher must be fabricated. O The design is to be one unit. O Must be manually operated.

O Constraints: O The max space the can crusher can occupy in 18” x 24” x 30” O The aluminum can bin must be sized to hold 20 crushed cans.

Maddie’s Sketch Explore Possibilities

Courtney’s Sketch

Kaylan’s Sketch

PartsProsCons Screw vs. NailScrews: good stability, low risk of injuries, reusable Could run through wood, take longer to put in, can split Nails: good stability, faster with a nail gun Not reusable, nail guns risk of injuries Spruce vs. Hardwood Plywood Spruce: more stable, doesn’t have glue that melts, no fumes Heavier Plywood: lighterHigher possibility of cracking and has glues that can melt Adhesive Pros and Cons

SketchesProsCons Kaylan’sVery clear, design seemed like it would function well, dimensions clear Not very robust Maddie’sDesign seemed like it would work, dimensions relatively clear Design slightly confusing Courtney’sDesign seemed functional Not all dimensions clear and not all isometrics there

Select an Approach Criteria Kaylan’s Sketches Maddie’s Sketches Courtney’s Sketches Price333 Ease of Use545 Reliability554 Self- loading555 Conservation of Materials 444 Ease of Assembly454 Efficiency543 Total Sketches Decision Matrix :

CriteriaSpruce Hardwood Plywood Pressure-Treated Plywood Efficiency554 Price553 Durability542 Total15149 Type of Plywood Decision Matrix:

CriteriaScrewsNailsWood Glue Price553 Efficiency544 Durability543 Total Adhesives Decision Matrix: Using each one when best fitted to design

Bill of Materials O ¼” hardwood plywood O ½” hardwood plywood O ¾” spruce wood O 1 ¼” screws O 1 ¼” nails O Wood glue O Rubber pad squares O 1” dowels Design Proposal

Test Plan Test CriteriaHow TestedExpected resultsActual Results Crushes Can 1 st Time Crush can using operation Can crushed 1 st time Reduces Can Size by 70% After can is crushed check the volume of the can that the volume matches 70% less than the original volume Reduced by at least 70% Can Must Drop into the BinRun operation Can Drops into the bin Bin must fit at least 20 cans Crush 20 cans using the crusher and fit into the bin Fits 20 can (no hassle) Bin slides in and out Assemble crusher and slide bin in and out Bin slides in and out easily Will be stable for the duration of the operation Operate can crusher and check for any movement in the crusher Crusher will be stable That the Can will fall into crushing station (self- loading portion of project) Assemble crusher and set 2 cans on the ramp watch if the fall into crushing station Can falls into crushing station automatically

CAD Drawing Assemblies Final Assembly

Bin Assembly

Can Crushing Station Assembly

Lever Assembly

Self loader Assembly

Prototype O Work process was too general and more details were added in the O Knew what specific parts to use but not how to assemble them smoothly O Prototype had to be modified a lot

Refine the Design O Had to change the base so in turn, the bin as well O Used spruce instead of hardwood plywood for more strength O Redesigned crushing station and lever so withstand more pressure and make more force

Lessons Learned O Make sure your design works and can perform the task before building O Use materials best fitted to design O Prepare to modify and redesign your prototype O Splitting up tasks and delegating

Summary O Used more time management skills to complete project ahead of time O Had to redesign many portions of the can crusher to fit requirements O Learned to use new tools for the project O Split up tasks effectively