Fluid Power Challenge Suggested Workshop Lessons

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Presentation transcript:

Fluid Power Challenge Suggested Workshop Lessons ORIGINATOR: Mitch Bivens EDITED BY: Stephen Rogers

Suggested sequence of lessons Introduction to the project (steps, timeframe, logistics, etc.) Building practice part 1 (lifter & rotational platform) Building practice part 2 (finish lifter & process cube) Introduction to engineering design & documentation (slides 3 – 25 ) 5 through 10: Test and refine design using prototype(s) and complete portfolio

Safety Safety is everyone’s responsibility! Always wear safety glasses Yes - even when not cutting or drilling No Running, No Throwing, No Horse Play! When sawing, drilling, filing or sanding; Ensure mitre box is securely clamped down Ensure each workpiece is secure & stable Ensure your hands/fingers are out of harm’s way Wipe sawdust – don’t’ blow! Tip of hot melt glue gun is HOT & can BURN YOU! Demonstrations Questions?

Examples YouTube & Google Fluid Power Challenge

Teamwork This project relies on teamwork to be successful Successful teams: Work together Assign & divide tasks Plan their work & work their plan Complete tasks in parallel Leverage individuals strengths Don’t mess with other teams’ materials without permission

Construction Tips Have a plan Measure twice, cut once Accuracy is important - variation is compounding! Use gussets and structural members for strength Consider Center of Gravity Wood Glue Less is more! Excessive glue takes longer to dry and does NOT result in a stronger joint Use stick to spread out glue on contact surfaces

Structural Strength Weight Glue Weight Option #1 Option #2 GROUND Which option is a more structurally sound design? -- Why? What else can go wrong and how can we improve it? 7

Structural Strength Wooden Cross Brace Paper Gussets Weight Weight Force Force Option #1 Option #2 GROUND Structural Strength Observations? Pro’s and con’s of each option? Reasons to use one option vs another? Other considerations? 8

Structural Stability Pivot Shaft GROUND Load 2 Kg Arm 1 Kg Base 0.5 Kg GROUND Structural Stability Any concerns with this structure? 9

Structural Stability GROUND The device will tip over - Why? How do we prevent this? 10

Orthographic Projection Isometric View 11

The Challenge Scenario 12

The Challenge Scenario Objective To design a prototype robot using only the supplied tools and materials, that can score as many points as possible. Deliverable Two copies of the portfolio 13

SAFETY is our number 1 concern ALL motion must be controlled by fluid power USE your materials wisely DOCUMENT everything in your portfolio All materials are provided except for tools Use your time efficiently Have fun and work well 14

15

DISCUSSION Why is one destination position worth more points than the other? What if you design a robot that only works when using your hands? How long will you have to move cylinders? What tools/materials can you use? Why is the Portfolio so important? 16

How to Maximize your Points! 17

Awards are given for each sub-category and for overall. Discussion How many points can you earn if your device cannot complete a single cycle? What pre-challenge action can you take to get the most Teamwork Skills points? Or the most Interview Question points? 18

Know the Rubric e.g. Description of the use of the principles of a strong and stable structure 1-5 points. Team 1 -> Team 2 -> Which team is likely to get points? 19

Sketching is a way of communicating ideas 20

Sketching is a way to explore new ideas. Fast way to explore options You could cut and glue everything to explore your mechanism idea, but that takes a lot of time. If you sketch it first 21

Examples of tasks Read project rules Read portfolio scoring rubric Research clamping mechanisms Sketch ideas for clamping mechanisms Research rotating mechanisms Sketch ideas for rotating mechanisms Build prototype mechanisms Sketch whole robot design Build robot prototype Practice challenge activity Read portfolio scoring rubric Generate final sketches of design for portfolio Write a description of the principles of strength and stability Write an explanation of the chosen location of your syringes Have writing reviewed by a mentor Assemble all portfolio elements into a final report 22

Identify concrete tasks and milestones Read rules and scoring rubrics Build prototype rotating mechanism Have draft portfolio reviewed by a mentor Milestone: Assemble writings and sketches into final portfolio Milestone: Finalize robot design Research clamping mechanisms 23

What you should be doing right now Identify 3 tasks or milestones Lay out the schedule Choose dates for your milestones 24

Watch videos from previous Fluid Power Challenges on YouTube or Google “Fluid Power Challenge” Successful products are always made by carefully researching existing products. 25

Good luck!