GB CAD Workflow: Industrial Standard

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A. Industrial Standard

(Garment Pattern CAD System)

B. Factory Industrial CAD Workflow (advance)

(Garment Manufacturing Environment)

A. Industrial Standard

(Garment Pattern CAD System)

🔹 Phase 1: Pre-Production Data Setup

1️⃣ Tech Pack Analysis

✔ Buyer Tech Pack সংগ্রহ

✔ Measurement chart যাচাই

✔ Construction details বুঝে নেওয়া

✔ Seam allowance requirement চেক

👉 এই ধাপে ভুল হলে পরের সব ধাপে সমস্যা হবে।

2️⃣ Style Creation (CAD System)

✔ Style Name

✔ Buyer / Order No

✔ Season

✔ Base Size নির্বাচন

👉 Project structure তৈরি করা হয়।

🔹 Phase 2: Pattern Development

3️⃣ Base Pattern Drafting

✔ Front / Back / Sleeve ড্রাফট

✔ Dart, Pleat, Curve, Armhole shape

✔ Balance & symmetry চেক

👉 এই প্যাটার্নই হবে “Master Pattern”

4️⃣ Seam Allowance & Construction Setup

✔ Seam allowance যোগ

✔ Notch বসানো

✔ Drill hole চিহ্ন

✔ Internal line মার্কিং

👉 Sewing department এর জন্য প্রস্তুত করা হয়।

5️⃣ Pattern Info Setting

✔ Pattern Name

✔ Code

✔ Cut Qty

✔ Grainline direction

✔ Max Slant Angle

👉 Marker planning ও production tracking এর জন্য প্রয়োজনীয়।

🔹 Phase 3: Size & Grading Control

6️⃣ Size Setup

✔ Size Range (S–XXL)

✔ Base Size Confirm

✔ Measurement Chart Input

7️⃣ Grading

✔ Grade Rule Apply

✔ X & Y movement check

✔ All size overlay verify

👉 Fit consistency বজায় রাখা হয়।

🔹 Phase 4: Pattern Validation

8️⃣ Pattern Checking

✔ Seam length match

✔ Curve smoothness

✔ Open segment আছে কিনা

✔ Walk check (front vs back seam)

✔ Grainline alignment

👉 QC Stage (Internal CAD QC)

9️⃣ Sample Print & Fit Approval

✔ Base size print

✔ Sample develop

✔ Fit session

✔ Correction apply

👉 Buyer Approval না পাওয়া পর্যন্ত repeat হতে পারে।

🔹 Phase 5: Marker Planning

🔟 Fabric Setup

✔ Fabric width

✔ Fabric type

✔ Shrinkage allowance

1️⃣1️⃣ Marker Making

✔ Size ratio সেট

✔ Grain restriction follow

✔ Pattern placement

✔ Efficiency optimize

👉 লক্ষ্য: সর্বোচ্চ marker efficiency

1️⃣2️⃣ Marker Validation

✔ Total consumption

✔ Fabric utilization %

✔ Cut order plan

🔹 Phase 6: Final Output & Production Release

1️⃣3️⃣ File Export

✔ DXF Export

✔ PLT File

✔ PDF Pattern

1️⃣4️⃣ Documentation & Archiving

✔ Pattern version control

✔ Marker file backup

✔ Production record সংরক্ষণ

🎯 Industrial Workflow Summary (Hierarchy)

Tech Pack →

Style Setup →

Base Pattern →

Seam & Info Setup →

Size & Grading →

Pattern QC →

Fit Approval →

Marker Making →

Efficiency Check →

Export & Production Release

🔥 Industry Reality

✔ বড় ফ্যাক্টরিতে আলাদা বিভাগ থাকে:

Pattern Team

CAD Team

Marker Team

QC Team

✔ Version control খুব গুরুত্বপূর্ণ

✔ Buyer change এ পুরো workflow আবার চলতে পারে

B. Factory Industrial CAD Workflow (advance)

(Garment Manufacturing Environment)

🔷 1️⃣ Merchandising → CAD Handover

🔹 Merchandising Team

✔ Buyer Tech Pack গ্রহণ

✔ PO (Purchase Order) নিশ্চিত

✔ Measurement chart চূড়ান্ত

✔ Fabric details সংগ্রহ

👉 Tech Pack CAD Department-এ হস্তান্তর

🔷 2️⃣ Pattern Development Department

🔹 Master Pattern Maker

✔ Base pattern drafting

✔ Construction detail সেট

✔ Seam allowance যোগ

✔ Pattern balance চেক

👉 Sample Room-এ পাঠানো হয়

🔷 3️⃣ Sample Development

🔹 Sample Room

✔ Base size sample তৈরি

✔ Fit sample প্রস্তুত

✔ Buyer fit comments গ্রহণ

👉 Correction থাকলে Pattern Maker revise করে

⚠️ এই ধাপ কয়েকবার repeat হতে পারে।

🔷 4️⃣ CAD Department (Digital Control Stage)

🔹 CAD Operator

✔ Pattern Digitizing / Draft Import

Paper pattern হলে digitize

অথবা CAD-এ direct draft

✔ Pattern Info Setup

Pattern Name
Code
Cut Qty
Grainline
Fabric type

✔ Size Setup

Size Range input
Base size confirm

✔ Grading Apply

Grade rule apply
All size check

🔷 5️⃣ CAD QC (Quality Control)

🔹 CAD QC Officer

✔ Seam match check

✔ Measurement verify

✔ Curve smoothness

✔ Notch alignment

✔ Open line check

👉 Approved হলে Marker Team-এ পাঠানো হয়

🔷 6️⃣ Marker Planning Department

🔹 Marker Maker

✔ Fabric Setup

Fabric width
Lay plan
Shrinkage

✔ Marker Making

Size ratio
Grain restriction
Efficiency optimize

🎯 লক্ষ্য: সর্বোচ্চ fabric utilization

🔷 7️⃣ Marker Approval

🔹 IE / Planning Team

✔ Consumption calculation

✔ Marker efficiency %

✔ Cost impact analysis

👉 Final marker freeze

🔷 8️⃣ Cutting Department Release

✔ PLT / DXF File Export

✔ Plot print

✔ Cutting order release

🔷 9️⃣ Production Start

✔ Bulk cutting

✔ Sewing line start

✔ Inline QC monitoring

🔷 🔟 Archiving & Version Control

✔ Pattern version save

✔ Marker file backup

✔ Buyer revision history maintain

🏭 Factory Department Structure (Typical)

Department	Responsibility
Merchandising	Buyer communication
Pattern	Base pattern develop
Sample	Fit approval
CAD	Digitize, grading
CAD QC	Pattern verification
Marker	Fabric optimization
IE	Consumption & costing
Cutting	Production cutting

🎯 Real Factory Workflow Flow

Buyer Tech Pack

↓

Pattern Draft

↓

Sample & Fit Approval

↓

CAD Grading

↓

CAD QC

↓

Marker Making

↓

Consumption Approval

↓

Cutting Release

↓

Bulk Production

🔥 Important Factory Rules

✔ Buyer approval ছাড়া bulk marker করা যাবে না

✔ Grade rule ভুল হলে পুরো order reject হতে পারে

✔ Efficiency কম হলে costing increase হবে

✔ Version control maintain না করলে production error হবে

***

IE = Industrial Engineering

🏭 IE (Industrial Engineering) কী?

গার্মেন্টস ফ্যাক্টরিতে Industrial Engineering (IE) টিম উৎপাদন প্রক্রিয়া বিশ্লেষণ, সময় নির্ধারণ, দক্ষতা বৃদ্ধি এবং কস্ট কন্ট্রোল নিয়ে কাজ করে।

তারা মূলত কাজ করে:

⏱ Production time calculation

📊 Efficiency measurement

💰 Cost control

🧵 Line balancing

📦 Production planning