AutoCAD for Apparel IndustryAutoCAD for Apparel Industry

Jimmy K.C. LamJimmy K.C. Lam

Institute of Textiles & ClothingInstitute of Textiles & Clothing

What is AutoCADWhat is AutoCAD

A Computer-Aided Design & Drafting A Computer-Aided Design & Drafting (CADD) tool designs for interior design, (CADD) tool designs for interior design, architecture and engineering.architecture and engineering.

More and more clothing manufacturers are More and more clothing manufacturers are using AutoCAD as it is affordable, running on using AutoCAD as it is affordable, running on PCs and is a multipurpose tool.PCs and is a multipurpose tool.

AutoCAD in Apparel IndustryAutoCAD in Apparel Industry

AutoCAD is a vector-based drawing, all the drawing AutoCAD is a vector-based drawing, all the drawing is based on X, Y co-ordinate (2D or 3D).is based on X, Y co-ordinate (2D or 3D).

It is highly accuracy, ability to work in full scale It is highly accuracy, ability to work in full scale (zoom in/out), rework design ideas and make changes (zoom in/out), rework design ideas and make changes instantly.instantly.

Ability to make complex calculations. (after all, all Ability to make complex calculations. (after all, all design in AutoCAD is based on mathematics design in AutoCAD is based on mathematics formula).formula).

Application areasApplication areas

SketchSketch It is a conceptual process, art work for design purpose.It is a conceptual process, art work for design purpose.

Pattern makingPattern making A technical drawing with measurements, seam allowance A technical drawing with measurements, seam allowance

for garment makingfor garment making Grading PatternsGrading Patterns

A modification of pattern making for different sizes based A modification of pattern making for different sizes based on grading ruleson grading rules

Making MarkersMaking Markers A process to arrange all fabric pieces (front/back/sleeve) A process to arrange all fabric pieces (front/back/sleeve)

with different sizes (S/M/L/XL) on cutting table for cuttingwith different sizes (S/M/L/XL) on cutting table for cutting

QuestionsQuestions

Discuss how AutoCAD can be applied in these Discuss how AutoCAD can be applied in these four areas (sketching, pattern making, grading four areas (sketching, pattern making, grading and marker making) in Clothing Productionand marker making) in Clothing Production

Full Size Sketch/Design can be made by AutoCAD

Mirror image is basic tool from AutoCAD for CAD drawing

Modification of sleeve based on AutoCAD

Maker Making based on AutoCAD.

All drawing in AutoCAD is based on mathematics. All cut piece areas Are calculated immediately and maximum fabric utilization

Marker Making process.

First arrange the large piece on the cutting table.

Second arrange the small piece to fill in the gap

Product Specification (trouser) Based on AutoCAD drawing

Guess the fabric utilization based on circles in this drawing?

AutoCAD calculates the area of each circle and subtract it from the total area of cutting table.

The utilization in this example is 78%

The utilization of this fabric based on square is 93%

The black square is wastage in this example

A typical drawing uses by AutoCADMechanical Drawing

Architecture drawing by AutoCAD

3-D drawing by AutoCAD3-D drawing by AutoCAD

Sydney Opera House DesignSydney Opera House Design Floor Plan Floor Plan