Drafting of various geometries using Chamfer, Fillet tool in AutoCad

Aim:- Drafting of various geometries using Chamfer, Fillet tool in AutoCad

Introduction:-

The fillet command is used to create rounded edges between the adjacent lines and faces in 2D and 3D. It is also used to connect two tangent arcs in 2D.Rounds are the softening of convex edges of geometries by adding a radius value. So in a mechanical part design, probably there are no sharp edges, all the edges are rounded because of some reason. Also, fillets are the softening geometric entities on concave edges.A chamfer is similar to a fillet except instead of an arc being inserted, it creates an inclined line.

Procedure:-

Fillet:-

A round or fillet can be created between two objects of the same or different object types: 2D polylines, arcs, circles, ellipses, elliptical arcs, lines, rays, splines, and xlines.

If the two selected objects are on the same layer, the arc defined is created on that layer. Otherwise, the arc is created on the current layer. The layer affects object properties including color and linetype.

Select the first of two objects or the first line segment of a 2D polyline to define the fillet.

Select the second object or line segment of a 2D polyline to define the fillet.

You can also hold down the Shift key before selecting the second object or line segment of a 2D polyline to extend or trim the selected objects to form a sharp corner. While Shift is held down, a temporary value of zero is assigned to the current fillet radius value.

If the selected objects are straight line segments of a 2D polyline, the line segments can be adjacent to each other or separated by one other segment. When the selected segments are separated by a segment, the segment that separates them is removed and replaced with the fillet.

The direction and length of the arc created is determined by the points picked to select the objects. Always select an object closest to where you want the endpoints of the fillet to be drawn.

Chamfer:-

1. Select Chamfer icon from the drop-down list of Fillet
2. Type D or Distance on the command line.
3. Press Enter.
4. Specify first distance value and press Enter.
5. Specify second distance value and press Enter. ...
6. Click on the first line and the second line

Result:-

All the diagrams are draw by using different tools like chamfer, fillet trim exten and mirror. before draw any diagram we must have to change the unit type like architecture, engineer etc. then we must have change the dimension pattern to change the type of unit. foolowing attachment are the result of this challenge.