E-Fabrication · Unit 04
Test, Measure + Revise
Tinkercad + 3D Printing · 10 Bambu P1S printers
Today’s challenge
Compare the print to the need, record evidence, and revise one dimension.
Grade 3 focusBasic solids and holes, align/group, large features, guided file naming, and teacher slicing.
Grade 5 focusRuler-based dimensions, tolerance tests, fit systems, orientation choices, and material/print-time limits.

Success example · inspiration, not a design to copy
Look closely. What makes this successful?
The printed part is measured and tested on the real object before revising one dimension.
What to do
- Understand. Read the challenge. Circle the important need, rule, or safety limit.
- Plan. Use the thinking spaces below before you begin making.
- Make. Build, model, code, practice, or investigate carefully with your team.
- Check. Use evidence—not guesses—to decide what worked.
- Improve or explain. Make one useful change or share your strongest conclusion.
Engineer’s thinking
1. What will you keep the same?
2. What one thing will you test or change?
3. Record the result with a number, tally, or clear observation.
4. What should you improve next?
Evidence check
Show what you learned.
Your teacher will look for: Fit-test notes, measurements, and a clearly named revised model.
My evidence
My next step
Exit reflection
Today I learned that because .
Next time I will .
How independently did I work?□ I needed coaching□ I worked with my team□ I can teach this skill