Creating Bar Bending schedule, Different Door types, and Creation of standard drawing templates using AutoCad

1. Aim & Introduction

Aim:

This challeneg aims to provide a deeper understanding to the student about using blocks in the Autocad software. By utilizing these commands, the student will be able to create architectural sketches that can be stored within thecomputer. This challenge aims to let the student create construction details while utilizing the doifferent AutoCAD commands such as blocks and attribute. It also aims to help the student undestand the importance of blocks in the AutoCAd software

Introduction:

The AutoCAD software provides different tools. used in this challenge is as described below:

Line- creates line object

Polyline- creates rectangle line object

Rectangle- creates rectangles object

Circle- create circle object

Trim-Cut unwanted lines or shapes with the provided cutting edges

Extended- Extend lines to opposite corners

Move- Move objects to particular locations

Copy- Copy obejects to particular locations

Rotate- Rotate selected objects to a particular angle with respect to base point

Array- Copy an object in a set path linearly or polarly

Join- Joins separated line objects to a particular angle with respect to base point

Dimlinear(DLI)- provides vertical or horizontal linear/ straight dimensions

Dimligned(DAL)- Provides dimensions with respect to the angle of the object

Dimangular(DAN)- Provides angular dimensions between two line objects.

Quicklinedimension(QDIM)-provides quick dimension of a geometry

Leader- creates an arrow head line

Layer- Provides identification of line or object groups by their properties

Units- Open "Drawings Units" window to specify to modify the dimension properties

Hatch- provides hatching pattern in a given object or internal point

Blocks- To create blocks that form multiple objects into one object

2. Sketch and Procedure:

A)Create the templates as shown in figure. Take the sizes of the title block as per industry standards or you can assume it as per size of the papaer. Use text and attributes whenever required. After creating the title block you need to save it as a block with names: Custom1_titleblock and Custom2_titleblock, respectively

PROCEDURE:

Note: the titlesblocks will be made for an A3 size paper(420mmx297mm)

Proceed with Custom1_titleblock

• Create the boundary rectangle.420mmx279mm

• Create the inside space 100mm dimension

• Add the boundaries at the bottom using line and offset command. You can adjust the dimensions later to the appropriate dimensions depending on the text/space requirement

• Start from the bottom to top

• Add the etxts using dtext command. Use text height=1.5mm

• Copy the etxts using the copy tool and double click the etxt to enter textedit mode. Change it accordingly

• Copy again for the TiTLE name . Use scale command to increase the size of the text

• Change alignment to "Center" and drag the center grip to the center of the line

• Now do the same procedure as above to complete the title block

• Use the "Mid between two points option to center the text. Use Justify "Middle for these texts for better procedure

• Copy the created text and scale the text by 2 or change the txt height in the properties tab

• Double click the texts and copy twice upward to complete

• Make it a block definition window by typing "b" on the command

• After selecting the object double check the parameters and press OK. specify the base point to be precise

Proceed with Custom2_titleblock

• Do the same procedure as above. Utilize rectangle tool,line tool, offset tool, copy tool and dtext to sketch

• Add the texts using dtext command and utilize the properties tab, copy tool, scale tool and move tool

• Make it as a block. Use same procedure as above

Result:

B)Create the doors type for warehouse as shown in the figure. You need to create

Ans:

Procedure:

• Create the door boundaries. Use rectangle tool and offset tool to create the door

Proceed with Door1

• Explode the lines to utilize it better

• Now proceed with with the vertical lines. Create the insides of the rectangle. Use offset and line tool

• Create the insides of the rectangle. Use offset andline tool

• Copy the inside lines to oyher rectangles

• Copy the three rectangles to the other layers

• Add the handle using rectangle and chamfer tool

• Trim the unnecessary lines
• Add the dimensions and text using dimlinear and dtext

• Make the door into block using the block command

Proceed with door 2

• Copy the door borders and handle to door 2 boundary

• Add text and dimensions. Then make it as a block to finish

Result:

C) Create each sysmbol as a block with the name given in the legend.After creating the blocks arrange them in the legend as shown in the figure

Ans:

PROCEDURE:

• Create the boundary

• Create the layers. You can adjust the dimensions later by stretching the lines if the texts does not fit

• Trim the unnecessary lines

• Add the texts using dtext

• Copy the text object and double click to edit texts

• Proceed with the sysmbols

• Rotate teh sysmbol to finish

• Add hatches on the copied sysmbols

• Copy the sysmbol again and edit the sysmbol using mirror command, line command and copy command

• Use themirror commands to create thelegs

• Proceed with the next column

• Add horizontal line in the middle then trim the bottom

• Copy to the text column and a horizontal line

• Add rectangles to the other sysmbols to create the next sysmbols

• More to the next column
• Create a polygon with 3 sides incribed in a circle with 2unit radius

• Add texts inside using dtext command

• Make all the sysmbols as block. Name it with the correct name

Results:

D) Create the door type for residential buildings as ablock. Save the name blocks as type use given dimensions or assume dimensions as per industry standards

Ans:

PROCEDURE:

Proceed with door1

• Use rectangle command

• Trim lines an offset again

• Draw the door knob

Proceed to Door2

• Join the lines for offset

• Offset thelines to create theimage. Use multiple for successive offsets

• Create the rectangles pe layer. Then copy to duplicate. Adjust the squares id needed

• Add the circle at the middle

Proceed to Door 3

• Add hatch for the net

• Copy door knob from D1

Proceed to D4

• Do the same procedures as above. Utilize line fillet,copy, and offset tool to finish the sketches

• Join the lines for ease of offset

• You can edit the block editor

Proceed with Door 5 use D4 as base for better utilization

• Trim unneccessary lines

• Mirror the bottom part to close.

• Adjust the spacing using the move tool

Proceed block to edit then delete ennecessary lines

• Explode block to edit then delete unncessary lines

Results:

E) Create each shapes as a block as shown in the figure. Save the block and insert them on the table as shown in the figure

Ans:

PROCEDURE:

• Proceed with the first sketch. Use line and fillet command to create the sketch
• DImensions used are assumptions only can be adjusted. These dimensions are for sketch representaion only

• Proceed with the next sysmbol

• Copy the 16mm block to create other 16mm block. Then explode the block to edit

• Change texts and make it the next block

• Proceed to the last detail

• Add texts together with the boundaries

Results:

3. Conclusion

The use of blocks in AutoCAD software is a usefull way to save objects or block objects and use them in other drawings. This will create time savings sketches like door, windows or other architectural items that is seldom included for drawing presentation. This is a revoulutionary command that allows the user to click multiple AutoCAD objects with one click. It also applies commands and parameters that is useful in sketching building plans