Introduction of AutoCAD ||Important Questions For Interview|| By- Akash Pandey
#Akashpandey #uniquecivil
INTRODUCTION
Auto(Logo of Company )+CAD(Computer-Aided Design). 2D & 3D Modelling Software. Widely used in Industry. Developed by Autodesk company in 1982 John Walker & 12 other programmers. It is a USA based company.
FUNCTION KEYS
F1- Help
F2- Flipscreen (History of used command)
F3- Osnap(object snap on/off-showing all point)
F4- Tablet
F5- Isoplane(Using in 2.5D)
F6- Coordinate Display (Dynamic UCS on/off)
F7- Grid(On/off-grid)
F8- Ortho
F9- Snap
F10- Polar
ESC - Cancels the current command
ENTER– Ends a command
SPACE BAR – Same as Enter
2D MODELING COMMANDS WITH SHORTCUT
1. DRAW
-LINE (L)
-POLYLINE (PL)
-CIRCLE (C)
-ARC (ARC)
-CONSTRUCTION LINE (XL)
-POLYGON (POL)
-SPLINE (SPL)
-ELLIPSE (EL)
-HATCH (H)
2. MODIFY
-ERASE (E)
-MIRROR (MI)
-OFFSET (O)
-MOVE (M)
-ARRAY (AR)
-ROTATE (RO)
-SCALE (SC)
-TRIM (T+2E)
-JOIN (J)
-EXTEND (EX)
-FILET (F)
-CHAMFER (CHA)
-EXPLODE (X)
-COPY (CO)
TO SET DRAWING UNITS (UN+ENTER)
1. Decimal – MM
2. Architectural – Inches
3. Engineering- MM,CM,M
4. Fractional-unitless
ISOMETRIC DRAWINGS
1. HOW TO OPEN ISOMETRIC:
Snap setting - Isometric - Snap - ok
OR
Click on Symbole
2. GENERAL RULE OF ISOMETRIC
A. Changing Plane - Use F5
B. Ortho always on.
C. Offset - use the Copy command
Use only in closed-loop & does not use it in an open loop.
D. Circle - Never use.
For Circle – Use Ellipse (Axis End-Right click-ISOCIRCLE)
3D MODELING
1. 3D model defined with Three coordinates (X, Y & Z).
2. How to start 3D Modelling - Workspace switching - 3D modeling
BENEFITS/USE OF AUTOCAD
1. Quickly Create Designs.
2. Improved Quality Over Hand Drafting.
3. Easily Modify.
4. More Accuracy.
5. Easy to Transfer.
6. Long Time Save.
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