← STEM Sketch
📘 Learn: Design, CAD & Making
Short lessons on the world behind the tool — what a CAD model really is, how to measure like an engineer, what an STL or SVG file holds, how 3D printers and laser cutters work, and where all of it shows up in medicine, space and your own kitchen drawer. Read the lesson, learn the words, do the mini activity right on the page, then pass the check.
0 of 6 checks passed
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Unit 1
Ideas Into Objects
What CAD is, why engineers draw more than one view, and how a sketch becomes a solid
⏱ about 18 min5-question check
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Unit 2
Measure It Right
Rulers and fractions, calipers and decimals, and why every real part has a tolerance
⏱ about 20 min5-question check
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Unit 3
The Files That Make Things
What an STL really is, what an SVG really is, and which machine wants which
⏱ about 18 min5-question check
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Unit 4
How 3D Printers Work
Hot plastic, thin layers, a slicer in between, and the rules that keep prints from failing
⏱ about 20 min5-question check
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Unit 5
How Laser Cutters Work
A beam of light as a blade — cut versus engrave, the kerf, nesting, and the safety rules
⏱ about 18 min5-question check
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Unit 6
Made by Design
Where CAD, printers and lasers show up in the real world — and the jobs that use them
⏱ about 18 min5-question check