| bring_the_hammer_down_ENGINEERING 12 Holbrook.docx |
MINIMUM 20 ft launch!
TESTING DATE will be Tuesday December 17th 2019!
Bringing the Hammer Down!
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Design Challenge:
Your challenge is to build a simple machine that will harness the power of a falling hammer in order to shoot a ‘standard size soaking wet tennis ball’ the furthest distance possible. The wet mark on the ground from the ball will be an indication of distance travelled from the “hammer impact point”. As the hammer falls from a 90 degree (horizontal position) it should impact/hit your simple machine causing a chain reaction, catapult type motion, elastic forces, etc that shoots the ball the furthest possible distance. Project Size: Individual or groups of 2. Groups of 2 are expected to do twice the work Materials:
Limitations: The footprint/base of your project should not exceed 24"x24" (60cmx60cm) and it should not weigh more than 15 pounds. Please have materials/products approved during the design portion of this project. |
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Design time!
Before you begin construction, you should begin by creating an idea map and any research you may need to harness the power of gravity and weight in order to transfer energy.
Plans, Prototyping, and timeline:
2 classes will be provided for research. The three computers or your mobile device may be used to gather ideas of physics concepts and/or how a simple machine/catapult can be harnessed to transfer the energy from the hammer to a high-flying ball! Use your time wisely as you are expected to begin the blueprint and prototype stage by day 3.
4 classes will be provided to create a working mini or full-size prototype in order to measure the success before moving onto the final versions.
Blueprints (even rough ones) with measurements and 90% of what you think will be required to build are necessary before you are allowed to begin creating your final project.
Plans, Prototyping, and timeline:
2 classes will be provided for research. The three computers or your mobile device may be used to gather ideas of physics concepts and/or how a simple machine/catapult can be harnessed to transfer the energy from the hammer to a high-flying ball! Use your time wisely as you are expected to begin the blueprint and prototype stage by day 3.
4 classes will be provided to create a working mini or full-size prototype in order to measure the success before moving onto the final versions.
Blueprints (even rough ones) with measurements and 90% of what you think will be required to build are necessary before you are allowed to begin creating your final project.
Marks/Rubric
Plans/Design _____ 50
-Orthographic plans, research, mind maps, rough drafts, drawings on napkins, etc
-Daily design journal recording your daily progess (lined paper in your engineering binder will suffice and will need to be handed in when project comes to an end)
Aesthetics/Build Quality/Function _____ / 20
Does is look symmetrical?
Does it look like it came from a garbage can?
Does it function smoothly?
All parts given quality care and attention?
ETC
Distance _____ / 30
Marks will be scale-based on the class average and farthest throw
TOTAL _____/100
-Orthographic plans, research, mind maps, rough drafts, drawings on napkins, etc
-Daily design journal recording your daily progess (lined paper in your engineering binder will suffice and will need to be handed in when project comes to an end)
Aesthetics/Build Quality/Function _____ / 20
Does is look symmetrical?
Does it look like it came from a garbage can?
Does it function smoothly?
All parts given quality care and attention?
ETC
Distance _____ / 30
Marks will be scale-based on the class average and farthest throw
TOTAL _____/100
Learning Standards:
Physics concepts to explore during this project:
- Make decisions about premises and constraints that define the design space, and develop criteria for success
- Generate ideas to create a range of possibilities and add to others’ ideas in ways that create additional possibilities
- Evaluate suitability of possibilities according to success criteria, constraints, and potential gaps, and prioritize for prototyping
- Choose an appropriate form, scale, and level of detail for prototyping, and plan procedures
- Visualize and construct prototypes, making changes to tools, materials, and procedures as needed
- Record iterations of prototyping
- Develop an appropriate test of the prototype, conduct the test, and collect and compile data
- Create design, incorporating feedback from self, others, and results from testing of the prototype
- Use materials in ways that minimize waste
- Critically reflect on plans, products and processes, and identify new design goals
- Apply safety procedures for themselves, co-workers, and users in both physical and digital environments
Physics concepts to explore during this project:
- ideas, rules, or concepts from physics that inform approaches to an engineering problem (e.g., kinematics, relative motion, dynamics, momentum and energy, electromagnetic forces and induction)
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November 5th 2019
Day 1: Questions and research
•How can we best utilize the increasing speed/velocity of the hammer as it falls within the “Plane of Impact”
•Terms:
•Plane of impact: Anywhere along the radius where the hammer may impact your project
•Notes: The Hammer head is 4 pounds
November 7th, 2019
Day 2 Questions, Research, and design
•These should all be recorded in your daily design journal. Each day should start on a separate piece of paper including the date and which “work day” it is
•4 sketches of different “simple machines” that you think may work.
•You need to explore how and why these machines might work and be able to explain how each part will help and function
•What material will you need and how much?
•Choose one sketch and begin expanding your ideas using graphing paper
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November 12 2019
Day 3 Questions, Research, and expectations
Before any material is given for full scale versions blueprints should be "professional" looking with dimensions and all included parts to be made. Everything should be thought out and planned for! You may change your design as you go but we require a starting point to go from
November 14 2019
Day 4 Expectations
Students should be finishing their final sketches and starting construction of prototypes or final parts. Please consult with the teacher about materials you may need. Students not on task will receive a mark of ZERO for their daily in class mark
November 18 2019
Day 5 Expectations
If students have custom parts they need made but do not understand/know how now is the time to ask and learn about new tools/machines that can aid them in their quest to build their ball launcher machine.
-Plans/designs should be getting finalized
November 20, 2019
Day 6 expectations
-If you have not completed your basic plans/blueprints or decided on a design then YOU ARE BEHIND!
-Students are expected to have figured out what material they need to begun construction on either a prototype or final project. The deadline for construction isn't very far away...
November 27, 2019
The testing date is creeping up with Tuesday December 17th only a few weeks away.
7 classes left including today and then testing date!
Students are expected to start testing projects by next week and fine tuning their "devices"!
December 3, 2019
5 classes left including today and then testing date!
You should be able to start testing and tweaking your "contraption" by next class to allow for modifications.
Testing area will be in the compound under supervision or in the Tennis court if weather allows
Day 3 Questions, Research, and expectations
- Students should have decided on a design they want to pursue for the "Hammer Down Project"
- Initial Blueprints/designs should be thought out and drawn on paper/graph paper
- Prototypes can be started. There is plenty of cardboard available as well as coffee stir sticks if needed
Before any material is given for full scale versions blueprints should be "professional" looking with dimensions and all included parts to be made. Everything should be thought out and planned for! You may change your design as you go but we require a starting point to go from
November 14 2019
Day 4 Expectations
Students should be finishing their final sketches and starting construction of prototypes or final parts. Please consult with the teacher about materials you may need. Students not on task will receive a mark of ZERO for their daily in class mark
November 18 2019
Day 5 Expectations
If students have custom parts they need made but do not understand/know how now is the time to ask and learn about new tools/machines that can aid them in their quest to build their ball launcher machine.
-Plans/designs should be getting finalized
November 20, 2019
Day 6 expectations
-If you have not completed your basic plans/blueprints or decided on a design then YOU ARE BEHIND!
-Students are expected to have figured out what material they need to begun construction on either a prototype or final project. The deadline for construction isn't very far away...
November 27, 2019
The testing date is creeping up with Tuesday December 17th only a few weeks away.
7 classes left including today and then testing date!
Students are expected to start testing projects by next week and fine tuning their "devices"!
December 3, 2019
5 classes left including today and then testing date!
You should be able to start testing and tweaking your "contraption" by next class to allow for modifications.
Testing area will be in the compound under supervision or in the Tennis court if weather allows