paper cutting - cs 448m spring 2019 · paper cutting across cultures chinese jewish swiss/german...
TRANSCRIPT
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Paper Cutting
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Paper Cutting Across Cultures
Chinese JewishSwiss/German
Polish
Japanese Mexican
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How it’s traditionally done
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Paper Cutting Machines (Craft Cutters)
Silhouette CameoCricut Maker
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ComponentsMachine itself Drag knife
Material
Cutting Mat
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How does it work?CNC = Computer Numerical Control
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Low level CutsGPGL: Graphtec Plotter Graphics Language
• Move ( Mx,y )
• Cut Line ( Dx,y )(x,y)
• Circle (WPx1,y1,x2,y2,x3,x3) & Ellipse
• Bezier Curve (BZx1,y1,x2,y2,x3,y3,x4,y4)
Full GPGL Spec: https://www.ohthehugemanatee.net/uploads/2011/07/GP-GL.pdf
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1. Paths
2. Corners
Mid Level Cuts
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Path
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Corner
Result: rounded corners or tears in material
Over Cut
Normal Cut
Result: sharp corners!
Blade Pivots
Blade Lifts
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High Level Cut: The DesignSeveral midlevel components.
• What order of components? • For each component, which
direction? • More complex questions:
• Can you and when should you break up all paths?
• Etc.
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• Blade depth
• Speed
• Force
Think about your material!!
Other Considerations
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Assignment 1• NOT using commercial/ black box software
• Two open source tools for cutting with the Cameo
• Input: SVG —> Output: paper cut art
• Choose one, both, create your own, or find more open source tools
• Look at the code - tell us what decisions the tool makes and why
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Demo
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Inspiration
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Announcements• Assignment 0: How Things are Made
• Assignment 1: Make Something!
• Office hours for getting started on the machines:
• Anh: today, 2:30-3:30 (get started with paper cutter)
• Pat: tomorrow, 1PM (get started with embroidery)
• Anh: Monday, 3PM (get started with paper cutter)