Challenge

Drafting of various geometries using Chamfer, Fillet tool in AutoCad

AIM:

My aim is to drafting of various geometries using chamfer, fillet tool in AutoCAD.

INTRODUCTION:

AutoCAD offers various tools like rotate, chamfer, fillet, move, offset, etc to ease the sketching process.

PROCEDURE:

(A) DRAWING: 1

Open new file and set decimal and precision to 0.00.
Command line: From random point draw 3.00 m line and @2.12<45, @2.83<135 then 2.00 m line and close.
Command offset: Offset 3.00 m line to 1.00 m and 2.50 m.
Command circle: From midpoint of 3.00 m line at 2.50 m and 1.00 m draw a circle of diameter of 1.20 at 1.00 m and 0.80 at 2.50 m.
Command Erase: Erase the offsets.

(B) DRAWING: 2

Select Architectural and polar tracking for angles 15,30,45,60 and so on.
Command Line: Draw a horizontal line and draw 2'-6" line at 225 degrees, 3' line perpendicular to it, 2'-5" vertical line and 8' horizontal line, 1'-9" vertical line and 2'-10"@ 225 degrees and close.

Open new file and set engineering and precision to 0'-0".
Command line: 2'-6.5" in negative X-axis, 3'-3" in negative Y-axis, 5'-0.1" in positive X-axis, 1'-6.0" in positive Y-axis and close.
Command offset: Offset 3'-3" line at a distance 1'-3.0" and 5'-0.1" at a distance of 1'-6.0".
Command circle: Draw a circle of diameter of 1'-6.0" from the centre of offsetted lines.
Command Erase: Erase the offset.

(D) DRAWING: 4

(E) DRAWING: 5

New page select decimal and precision 0.00 while keeping ortho on.
Command line: 6.00 m vertical, 11.50 m horizontal, 6.00 m vertical and 11.50 m horizontal.
In object snap setting keep midpoint, centre, intersection and geometric centre on.
Command Circle: Draw circle at the centre with diameter 3.00 m
Command Offset: Offset 6.00 m line at a distance of 3.00 m on both sides and offset the 11.50 m line at a distance of 3.00 m.
Command Circle: Draw concentric circles at a intersection of the offsetted line of diameter 1.00 m and 2.00 m on both sides.
Command Erase: Erase the offsets.

(F) DRAWING: 6

New page select decimal with precision 0.00.
Command line: 1.5 m horizontal and 1.5 m vertical on both sides.
Command offset 1.5 m line to 0.5 m.
Command divide: Divide 1.5 m line into 3 segments.
Command line: Join the divided lines.
In object snap setting keep the Extension on.
Command line: Draw 2.0 m line and 1.5 m line and 0.5 m horizontal on top and in vertical and 1.5 m horizontal and 0.5 m vertical and join the slant line.
Command line: 2.0 m horizontal and 1.5 m vertical on both sides.
Command offset: Offset 1.5 m line to 0.5 m.
Command divide: Divide 1.5 m line into 3 segments.
Command line: Join the divided lines.

(G) DRAWING: 7

New page and set decimal and precision to 0.
Command line: Drawing 210 m horizontal line and 100 m vertical line on left side and 75 m vertical line on right side, since arc has radius of 35 m drawing a line of 70 m on left side and has a radius of 25 m drawing a line of 50 m on right side.
Command Arc: From start, end and radius draw an arc of radius 35 m on left side and arc of radius 25 m on right side.
Command Circle: From midpoint of 70 m line on left side draw a circle of diameter of 50 m and 30 m on right side.
Command offset 210 m line at a distance of 60 m.
Command Fillet: Filleting to radius 15 m on top right and left , and radius of 20 m on inner left and radius of 6 m on inner right.
Command Offset: Offsetting 210 m line to 10 m and 100 m and 75 m line to 20 m.
Command rectangle: 70 m length and width of 30 m from off setted line on both sides.
Command Erase: Erasing the offsetted line and unwanted lines.

(H) DRAWING: 8

New page set decimal and precision to 0.00.
Command Circle: Draw concentric circles of diameter 5.00 m and 4.00 m.
Command line: From the centre point of circle draw 4.275 m line on both sides.
Command Circle: Drawing a circle of diameter 0.90 m on both sides.
Command Arc: From start, end and radius draw an arc of radius 0.90 on both sides.
Command line: Join the lines to the arc.

(I) DRAWING: 9

New page and set Engineering and precision to 0'-0".
Command Line: Draw a 32'-6" horizontal line.
Command Circle: Draw a circle of radius 8' on left side of line and radius of 9' on right side of line.
Command Arc: From start, end and radius drawing a arc of 41'-8" on top and 20'-10" on bottom.
Command Trim: Trim the unwanted line and curves.

(J) DRAWING: 10

Command Rectangle: Draw a rectangle of same length and same width of one smaller size and another slightly bigger one from common centre.
Command Rotate: Rotating the drawn square by 45 degree keeping the copy.
Command Trim: Trim the crossing lines according to the figure.

(K) DRAWING: 11

New page and set Engineering and precision 0'-0".
Command Line: Draw 10'-2" horizontal line, 9' vertical line, 3' horizontal line, 4'-6" vertical and horizontal line and 1'-2" vertical line.
Command Mirror: Mirror the above lines at centre axis.
Command Offset: Offset the 20'-4" to a distance of 6'-9" and 13'-6" to a distance of 10'-2".
Command Rectangle: Draw a rectangle of length and width 3' from the centre point of off setted line.
Command Move: Moving the centre of rectangle to the centre of offsetted line.
Command Rotate: Rotating the rectangle by 45 degrees.
Command offset: Offsetting 20'-4" to a distance of 2'-8" with polar tracking on draw an angle of 90 degress. Offset 20'-4" to a distance of 3'-7" with polar tracking on draw an angle of 60 degrees.
Command Erase: Erase the unwanted lines.

RESULT:

The given drawings have been drawn using AutoCAD.

Ship work like this
in your own course.