CADSYSTEMHANDBOOKREPARED BY:RAYMOND TINGCHECKED BY:ANTHONY POONDATE:

12 DECEMBER 97

CONTENTS

1.INTRODUCTION

1.01Preface

1.02System Requirements

2.FILING SYSTEM & PROCEDURE

2.01File name of drawing

2.02Directory structure in hard disk

2.03Backup rule

3.CREATE A NEW DRAWING

3.01Initial environment of a prototype drawing

3.02Text font and style

3.03Linetype and linetype scale

4.PLOTTING

4.01Choice of Plotter

4.02Paper Type

4.03Relationship of color number & pen width

5.LIBRARY

5.01Using library

5.02How to Manage the library

6.AUTOLISP

6.01What is AutoLISP

6.02AutoLISP application

7.COMMUNICATION

7.01Networking

7.02Communication with other company

APPENDIX A

Standard library of Ho & Partners Architects.

APPENDIX B

Common mistakes to be avoided.

APPENDIX C

Standard Design Criteria.

a)Rules to be followed by CAD userb)Do in Structural Planningc)Design Criteria for MVAC Systemd)Design Criteria For Electrical Systeme)Don႒ts in Architectural PlanningAPPENDIX D

Standard Chinese font and linetype.

CHAPTER ONEINTRODUCTION1.01PREFACEThe AutoCAD drafting package is a very powerful drawing tool. In order to run this software smoothly in our office, we should follow some standard procedures to maximize the efficiency of this computer aided design drafting tool. This Handbook is specially designed for the use of our staff member. Any suggestions which may lead to the perfection of this handbook will be welcomed and deeply appreciated.1.02SYSTEM REQUIREMENTSA typical CAD work station in our office includes five major components: A high resolution color monitor with display adapter card, a system unit; a digitizer or mouse for input; a plotter for hardcopy output; and some software.Monitors:A wide variety of color monitors ranging from 17႔ to 21႔ have been used.System unit:80586 micro-computer (with Pentium CPU, keyboard, 540MB hard disk, 32MB RAM) have already been employed in our office. Recently, we are upgrading our system to Pentium II level.Digitizer:It is an efficient pointing devices for inputting an accurate drawing command.Plotter:A mechanical drafting machine to produce hardcopy from the CAD system.Software:Windows 95, MS-DOS (Disk Operating System) ,AutoCAD and Microstation (Computer Aided Design package) are the major software using in our office. Moreover, we also use some programs developed by Ho & Partners.CHAPTER TWOFILING SYSTEM & PROCEDURE2.01FILE NAME OF DRAWING

For Architectural Drawing Number System

Scheme Number

ASK-A-1

Feasibility/Sketch Design, Scheme Number

AGB-BO-1

General Building Plan for B.O.O. Submission

AGB-WD-1

General Building Plan for Working Drawings

ADR-BW-1

Drainage Plans for B.O.O. Submission & for Working Drawings

ALS-EL-1

Large Scale Drawings for External Works & Landscape Works

ALS-BE-1

Large Scale Drawings for Building Exterior Works

ALS-CA-1

Large Scale Drawings for Building Interior Common Area Works

ALS-PA-1

Large Scale Drawings for Building Interior Private Area Works

ALS-FE-1

Large Scale Drawings for Furniture, Fittings & Fixtures Works (include. Hose Reel, F.S. Inlet etc.)

ALS-SG-1

Large Scale Drawings for Signage & Graphics Works

ALS-TW-1

Large Scale Drawings for Temporary Work

ALS-WD-1

Large Scale Drawings for Windows & Doors

ALS-SR-1

Large Scale Drawings for Staircase & Ramps Works

ALS-LE-1

Large Scale Drawings for Lifts & Escalators

ASH-W-1

Windows Schedule

ASH-D-1

Door Schedule

ASH-F-1

Finishing Schedule

ASH-SF-1

Sanitary Fitting Schedule

ASH-I-1

Ironmongery Schedule

ASSU-1

Site Survey/ Site Setting Out Plans

ATSU-1

Tenancy Survey Plans

APB-1

Program/ Bar-charts

ASPA-1

Sales & Purchase Agreement Plans & Assignment Plans

ATW-1

Temporary Works, including Demolition, Hoarding Plans etc.

SF-GP-1

General Plans for Site Formation

SF-AW-1

Architectural Works for Site Formation

SF-ST-1

Structural Works for Site Formation

SF-DR-1

Drainage Works for Site Formation

DOS only allows 8 characters for the name of a file; therefore the computer drawing file name (in AutoCAD) is derived from the paper drawing number as follows:e.g.

drawing number:AGB-BO-01 REV Afilename in CAD is GB-BO01A.DWG

ALS-BE-02 REV Bfilename in CAD is LS-BE02B.DWG

ASK-B-03 REV Cfilename in CAD is SK-B-03C.DWG

In case you discover that certain ႓drawings႔ cannot fit into this new ႓numbering system႔, you must not ႓invent႔ your own prefix or numbering system, but should refer the matter to the Senior Architect -SD or in his absence, the Director i/c (who should then discuss this at weekly Job Book Meeting) before making any decision.For Structural Drawing Number System

DRAWING NO.

DESCRIPTION

SK-00-A

Sketch Plans - including framing sketches, column size and structural gridsketches, etc.

BH-00-A

Boreholes Location Plans

SL-00-A

Loading Plans

SB-00-A

Sub-Structural Plans & Detail & Starter Bars

SH-00-A

Shoring Plans & Detail

SP-00-A

Framing Plans

SD-00-A

R.C. Details (Superstructure)

SF-00-A

Site Formation Plans & Details

D-00-A

Demolition

Revision No.Drawing No.Drawing TypeFor E&M Drawing Number System

DRAWING NO.

DESCRIPTION

LT-A00-A

Lift

AC-A00-A

Air Conditioning/ Mechanical Ventilation

DR-A00-A

Drainage

EE-A00-A

Electrical

FS-A00-A

Fire Service

PL-A00-A

Plumbing

Revision No.Drawing No.Scheme No.Drawing Type2.02DIRECTORY STRUCTURE IN THE NETWORKDrawing files of the same project will be placed under the sub- directory named after that particular project number. All of those sub-directories are, in turn, grouped under a root directory called 'P:\'. The following hierarchy chart illustrates the directory structure of a typical network drive.

P:\OS9318GB-BO01A.DWG

GB-BO02A.DWG

GB-BO03A.DWG

HK8215GB-BO01B.DWG

GB-BO02B.DWG

GB-BO03B.DWG

WARNING:Drawing files must be created in the corresponding directory. Never create files in the local hard disk.There are 8 network drives in the office႑K႒-For Kowloon (KNT) Project႑L႒-For Standard Library Drawing႑M႒-For All E&M Project႑N႒-For New Territories (NT) Project႑O႒-For Overseas (OS) Project႑P႒-For Hong Kong (HK) Project႑Q႒-For All Structure Project႑R႒-For New Territories (NT) Project2.03BACKUP RULE

All project data will be backuped by the system supervisor daily and weekly. Report to the supervisor immediately in case of any data lost. Report to the CAD Manager with a drawing register when the project is done or no longer active.

CHAPTER THREECREATE A NEW DRAWING3.01INITIAL ENVIRONMENT OF A PROTOTYPE DRAWING

LIMITS :

We assume that you are drawing in a rectangular area. The drawing limits are the borders of this rectangle, expressed in drawing coordinates. You can select whatever limits make sense for your drawing. For example, if you are drawing a 1:100 floor plan on a "A1" size tracing paper with company logo, you can choose to consider a drawing unit to be one millimeter. You can then set your drawing limits to :

Lower left corner : (0,0)

Upper right corner : (68000,56000)

However, if you would like to draw the title block out, the drawing limits have to be set to:

Lower left corner: (0,0)

upper right corner: (81000,56000)

If your drawing grows beyond your original plans or the drawing limits become too restrictive, you can easily change the drawing limits proportionally.

UNITS :

The input "UNITS" we usually set as follow :

Command: UNITS

Systems of units: (Examples)

1.Scientific 1.55E+01

2.Decimal 15.50

3.Engineering 1'-3.50"

4.Architectural 1'-3 1/2"

5.Fractional 15 1/2

With the exception of Engineering and Architectural modes, these modes can be used with any basic unit of measurement. For example, Decimal mode is perfect for metric units as well as decimal English units.

Enter choice, 1 to 5 <2>:

Number of digits to right of decimal point (0 to 8) <4>:

Systems of angle measure: (Examples)

1.Decimal degrees45.0000

2.Degrees/minutes/seconds45d0'0"

3.Grads50.0000g

4.Radians0.7854r

5.Surveyor's unitsN 45d0'0" E

Enter choice, 1 to 5 <1>:

Number of fractional places for display of angles (0 to 8) <0>:

Direction for angle 0:

East3 o'clock= 0

North12 o'clock= 90

West9 o'clock= 180

South6 o'clock= 270

Enter direction for angle 0 <0>:

Do you want angles measured clockwise? <N>

Normal setting :

units:2.

digits to right of decimal:4.

angle measure:1.

fractional places of angles:2.

direction for angle:0.

clockwise:N.

SNAP :

Points entered by means of a pointing device can be locked into alignment with an imaginary rectangular grid by the "snap" mechanism. The snap resolution defines the spacing of this grid; the screen crosshairs and all input coordinates are locked ("snapped") to the nearest point on the grid if Snap mode is on. Using Snap mode, you can draw bar chart or regular diagram quickly.Note that the Snap grid is invisible. You can use the GRID command to display a separate visible grid. You can set the spacing of the two grids to equal or related values to assist you in using the Snap grid.

LAYER :

You can assign various portions of your drawing to different layers, and you can define as many layers as you like. The layering concept is similar to the transparent overlays used in many drafting combination. For instance, a drawing file can contain the floor plan for a house on one layer, electrical wiring on a second layer, and plumbing on a third layer. You can plot(or display) the floor plan and wiring together and then re-plot the floor plan with the plumbing included as well.The followings are the typical layers that are used in the office. Should any new layer be created, please consult the CAD section before taking action.

For architecture building plans :

Layer Name

Color

Line Type

Description

WHITE

CONTINUOUS

NOTHING

AREA

CONTINUOUS

AREA CAL.

ATTCAR

CYAN

CONTINUOUS

CARPARK

BATH

CYAN

CONTINUOUS

SANITARY FITMENT

CEILING

GREEN

CONTINUOUS

CEILING

CHINESE

WHITE

CONTINUOUS

CHINESE TEXT

DIM

MAGENTA

CONTINUOUS

DIMENSION

DMARK

RED

CONTINUOUS

DOOR MARK

DOOR

RED

CONTINUOUS

DOORS

FIT

RED

CONTINUOUS

FITMENTS

RED

CONTINUOUS

FIRE SERVICES

FURN

GREEN

CONTINUOUS

FURNITURE LAYOUT

GRID

GREEN

DASHDOT

GRID LINE

HATCH

GREEN

CONTINUOUS

HATCH PATTERN

LMARK

MAGENTA

CONTINUOUS

LEVEL MARK

PLANT

GREEN

CONTINUOUS

GREEN PLANT

PLOT

WHITE

CONTINUOUS

LOGO

WHITE

CONTINUOUS

VIEWPORTS

PTT

WHITE

CONTINUOUS

PARTITION

ROAD

CYAN

CONTINUOUS

ROAD

SITE

GREEN

DASH2

SITE BOUNDARY

STRU

YELLOW

CONTINUOUS

STRUCTURE

TEXT

WHITE

CONTINUOUS

TEXT

TEXT2

RED

CONTINUOUS

TEXT

WIN

CYAN

CONTINUOUS

WINDOWS

WMARK

RED

CONTINUOUS

WINDOW MARK

For standard structure layering :

Layer Name

Color

Line Type

Description

WHITE

CONTINUOUS

NOTHING

BEAM

RED

HIDDEN

BEAM

BEAM-M

GREEN

CONTINUOUS

BEAM MARK

B-HOLE

WHITE

CONTINUOUS

BORED HOLE

CAP

WHITE

CONTINUOUS

CAP

CAP-M

GREEN

CONTINUOUS

CAP MARK

COL

YELLOW

CONTINUOUS

COLUMN

COL-M

GREEN

CONTINUOUS

COLUMN MARK

COL-U

CYAN

HIDDEN2

COLUMN UNDER

COL-ST

RED

CONTINUOUS

CUT SLOPE

DIM

MAGENTA

CONTINUOUS

DIMENSION

DROP

WHITE

CONTINUOUS

ON PLAN DIFFERENT LEVEL

DTEXT

YELLOW

CONTINUOUS

DETAIL TEXT

EDGE

GREEN

CONTINUOUS

CONCRETE EDGE

E-BEAM

GREEN

CONTINUOUS

EDGE BEAM

EX-LEV

MAGENTA

CONTINUOUS

EXISTING LEVEL

EX-SL

RED

CONTINUOUS

EXISTING SLOPE

FALL

WHITE

CONTINUOUS

FALL

GRID

MAGENTA

CENTER

GRID

HATCH

MAGENTA

CONTINUOUS

HATCH

H-CORD

MAGENTA

CONTINUOUS

HARD CORE

LIN-1

RED

CONTINUOUS

MISCELLANEOUS LINE

OPEN

RED

CONTINUOUS

OPENING FOR FRAMING & SLAB

PILE

WHITE

CONTINUOUS

PILE

PTEXT

WHITE

CONTINUOUS

PILE TEXT

PLEV

WHITE

CONTINUOUS

PLAN LEVEL TEXT

TEXT

RED

CONTINUOUS

MISCELLANEOUS TEXT

REIN

YELLOW

CONTINUOUS

REINFORCEMENT

REIN-B

YELLOW

HIDDEN

BOTTOM REINFORCEMENT

REIN-T

YELLOW

CONTINUOUS

TOP REINFORCEMENT

RLINE

RED

CONTINUOUS

REINFORCEMENT TEXT LINE

ROCK

MAGENTA

CONTINUOUS

ROCK

RTEXT

WHITE

CONTINUOUS

ROCK TEXT

SECM

WHITE

CONTINUOUS

SECTION MARK

SEC-L

YELLOW

CONTINUOUS

SECTION LINE

SEC-D

RED

HIDDEN

SECTION LINE BEHINE

SLEV

WHITE

CONTINUOUS

SECTION LEVEL MARK

SOIL

RED

CONTINUOUS

SOIL

STEXT

WHITE

CONTINUOUS

SLAB TEXT

STEEL

WHITE

CONTINUOUS

STEEL

STAIR

RED

CONTINUOUS