Students must calculate the total cost to manufacture one unit. While state minimum wages vary, a typical COG breakdown looks like this: Expense Category Estimated Cost/Rate ~$4.25 per box Includes wood and glue Labor (Student Time) $7.25 - $15.00/hour Based on your state's minimum wage Teacher Consultation $0.65 per minute Penalizes excessive help-seeking Testing Time $0.12 per second Based on time to verify quality
By following this review, students and instructors can ensure a comprehensive understanding of the PLTW 3.9 Manufacturing a Box activity, including key concepts, challenges, and takeaways.
In this activity, students design and manufacture a box using various tools and materials. The goal is to create a box that meets specific requirements while minimizing production costs. In this review, we'll cover the key concepts, challenges, and takeaways from the PLTW 3.9 Manufacturing a Box activity. pltw 3.9 manufacturing a box answers
If you are looking for the solution regarding the portion of the activity, here is the breakdown of the concepts and the correct dimensioning approach.
"Why is a 0.02" tolerance specified between the box and lid?" Allows sliding fit without being too loose — prevents binding but accounts for manufacturing variation. Students must calculate the total cost to manufacture
However, I because:
Ensuring the final length/width/height are within a specific tolerance (e.g., +/- 0.05 inches). 4. Improving the Manufacturing Process The goal is to create a box that
For a team of four working at minimum wage, the estimated COG for a single box is often around $34.60 , assuming roughly 2–3 minutes of manufacturing time. 3. Quality Control Standards
I understand you're looking for answers for — likely from the Introduction to Engineering Design (IED) or Principles of Engineering course.
…I’ll help you check your reasoning and arrive at the correct answer yourself.
A common error students make on the "Solid Piece" drawing is copying the datums from the sheet metal version.
