Creating various 3D Models like Furniture, Footing, Girder, Column drop with panel and Gable Wall in AutoCad

1. wireframe modeling
2. surface modeling
3. solid modeling

COMMANSD USED-

• rectangle tool
• extrude
• subtract
• UCS
• box
• offset
• move
• sweep
• cone
• region
• boundry

PROCEDURE:

• open autocad 2021 file.
• set the unit as impherical.
• units-set to engineering with precision 0'0"
• set the limax as 100,100.
• zoom command-all,set the page.
• from setting switch to 3D modelling.
• set to top view- 2D wireframe.
• draw a rectangle of dimension 3'x3' in xy plane.
• explode the rectangle
• offset three sides at distance 2".

• enter boundary command and select offset lines,make a region.
• similalry repeat the same for other two sides and whole rectangle.
• go to default view by clicking on home icon.
• select extrude from ribbon and select all region.
• extrude at the height in z-axis 2'6".
• select subtract command,select the rectangle-enter.
• select smaller rectangle-enter.
• select union command and select all object-enter.
• use linear dimension and measure by switching UCS.

RESULT:

2. AIM:Create the 3d Model of an Isolated footing

INTRODUCTION: given footing is an isolated footimg/tappering footing of diemsnions 1'x1' at the top and 2'x2' at bottom with 6" pcc bed.

command used here is tappering option in box command .

PROCEDURE:

• set the view to top and 2d wireframe.
• draw a recatngle of each side 2".
• select offset command ,select recatngle and enter the distance as 1'.

• move to default view.
• enter move command,select 1'x1' rectangle and move at a distance of 3'.
• select loft command,select two rectangle and enter.
• now extrude the rectangle of size 2'x2' with height 6".
• 

RESULT:

3. AIM:Create the 3D view of the AASTHO Type Girder.

INTRODUCTION: aastho are type of grider,which has expanded the width of upper and lower flange.

these types are mainly used in bridge construction.

PROCEDURE:

• set the view to top and wireframe.
• draw a set of rectangle od dimension 10'x6",10'X1'4",10'x1'6" and 10'x1'.
• now allign the rectangle in bigger rectangle using geometric center.

• set the view to SW isometric.
• extrude recatngle upto given heights,for example for 10'x6" extrude upto height 1'6".
• follow the same of remaining.
• allign the recatngle upto certain height usig move command,example move rectangle 10'x6" at height 0,0,1'.

• now tamper last second rectangle by selecting width face,specifying base point and axis,enter angle as -15.
• similary for 2nd recatngle, neter angle as -45.
• use union command to join the extruded section.

RESULT:

4. AIM:Create a 3d Model of a drop column with panel

INTRODUCTION: Drop panels are the rectangular portion provided above the column and below the slab in order to restrict slab from getting sheared and undergo rupture.

PROCEDURE:

• select the top view with wireframe.
• draw a circle of diameter1'6".
• extrude the circle at height 10' in default view.
• move back to top view and,draw a recatgle of sides 3'6".
• place the rectangle on circle using onsnap or enter distance as 0,0,10.
• extrud ethe recatngle at height of 1'.
• select tamfer command from solidedit tool and select the face .
• sepcify the base point ad enter agle as 45 degree.
• repeat the same on other side or use loop/chain command in tamper.

• back to top view and draw a rectangle of side 4'6".
• move back to isometric view and extrude at height 6".
• place the recatngle on top of 3'6" rectangle using UCS icon or distance command.
• use union to make object one.

RESULT:

5.AIM:Create the 3d model of a wall