Exercise 1

This exercise will revise extrusion , shelling a solid and creating sketches on an existing face.

• draw a square on the initial plane

• extrude a prism similar to that shown to the right

• attach a new sketch of the right face

• view onto the new sketch (Shift + w)

• draw a square on the new sketch

• select the square and rotate it 45 degrees

• extrude the square

• select the end of the new prism and shell the solid

Exercise 2

This exercise will revise extrusion, introduce creating an offset workplane and demonstrate the principle of projecting a profile.

Because a cylinder has a curved surface, it is not possible to add a sketch and extrude as you did in Exercise 1.

• draw a circle on the initial plane

• extrude a cylinder similar to shown to the right

• select the Lateral plane

• create a new offset workplane

• add a new sketch to the new workplane

• view onto the new workplane (Shift + w)

• draw a square on the sketch

• rotate the square 45 degrees

• it may be necessary to move the square so it does not hang over the cylinder

• project the profile through to the cylinder

• select the top of the cylinder and shell the solid

Exercise 3

This exercise will revise extruded a taper (cone) and projection of a profile

• on the initial sketch draw a circle

• extrude a cone similar to that shown to the right

• select the Lateral plane

• create a new offset workplane

• add a new sketch to the new workplane

• view onto the new workplane (Shift + w)

• draw a circle on the sketch

• it may be necessary to move the circle so it does not hang over the cone

• project the profile through to the cone

Exercise 4

This exercise will revise extrusion, deforming a face, shell and projection of a profile

• create a shelled dome similar to that shown to the right

• select the Frontal plane

• create a new offset workplane which is located just below the top of the dome

• add a new sketch to the new workplane

• view onto the new workplane (Shift + w)

• draw a rectangle on the new sketch - be sure the rectangle does not overhang the dome

• add a fillet to two corners of the rectangle (see rollover)

• project the profile through to the dome

• rotate the dome and observe that the projection does not penetrate the inside of the dome

Exercise 5

This exercise will introduce duplicating shapes in a rectangular pattern

• on the initial sketch draw a circle

• duplicate the circle into a rectangular pattern having 4 in the X direction and 3 in the Y direction

• extrude the circles to produce a pattern of cylinders as shown in the mouseover to the right

Exercise 6

This exercise will introduce duplicating shapes in a circular pattern

• on the initial sketch draw a square

• duplicate the square into a circular pattern producing 6 squares in 360 degrees

• extrude the squares to produce a pattern of prisms as shown in the mouseover to the right

NOTE the centre of the circular patterns is the axis of the workplanes

Exercise 7

This exercise will revise extrusion, duplicate circular, introduce holes and saving a component. The component (wheel) will then be used as part of a car in exercise 10.

• commencing at the axis (0,0),create a 50 diameter x 20 high extrusion as shown to the right

• add a new sketch to the top surface

• draw a circle on the new sketch as shown in the mouseover

• duplicate the circle in a circular pattern similar to that shown to the right

• create counterdrill holes as shown below

• round the top edge to a radius of 5

• activate the initial sketch then

• add a circle to the centre of diameter 10

• update the drawing

• save the drawing using the name WHEEL

• the final wheel should look like the one in the mouseover to the right

Exercise 8

This exercise revises extrusion and holes. The car body produced will be used in exercise 10.

• select the Frontal plane

• add a sketch and call it BODY

• draw a horizontal line 200 long

• using the line as a base, create a stylised car body shape

• extrude the body 125

• select the front face

• add a new sketch to the front face, naming it HOLES

• draw two circles where for the front and back axles

• create two simple holes through the entire part with a diameter of 10

• save the component and call it BODY

NOTE the size of the circle you drew does not affect the size of the hole. The position of the centre is the only important factor.

Exercise 9

This is a really simple exercise. You will create the axle for the car to be assembled in exercise 10.

• add a new sketch to the Frontal plane

• draw a circle on the sketch

• constrain the diameter to 10

• extrude the circle to 170

Exercise 10

In this exercise you will assemble the parts created in exercises 7 to 9 to form a car. The exercise introduces adding components to a new design, duplicating components and aligning parts.

During the exercise it will be necessary to rotate the drawing frequently in order to select the faces required. It will also be necessary to select components frequently and move them into a more convenient location.

To prevent the body moving about when joining parts, we will fix the body into position.

• create a new design

• add the body to the new design

• select the body and toggle to fixed

• add one wheel

• duplicate the wheel to produce four wheels

• add the axle to the design

• duplicate the axle to create two axles

• repeat the following steps for each axle

  • select the surface of the axle and the inside of the hole in the body

  • centre the axes

• repeat the following steps for each wheel

  • select the hole in the centre of the wheel and the outside of the axle

• centre the axes

• select the outside surface of the wheel and the end of the axle

• align the two surfaces

• select the inside surface of the wheel and the adjacent side of the body

• offset the parts 2.5 - apply a mating condition as shown below

• 

• save the design as CARASSEMBLED

NOTE changes made to the original BODY, WHEEL or AXLE will be reflected in the assembled design.

Make some modifications to the body. See the changes in the assembled drawing!