settings for first use - mechfamilymechfamilyhu.net/download/uploads/mech147431837321.pdf · r12.5...

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Settings for first use

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Chapter 1: Drawing 2D

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200R20

R30

R12.5

R20

60

R20120

100

100

Fillet 5mm

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CHAPTER 2: 3D Parts

The

Sele

Sele

Adddiam

e tutorial is s

ect YZ plan

ect circle

d dimensionmeter of 65.

step by step

ne and click

and poin

n to the circl.

DES

p to teach yo

on sketch

nt to the ori

le using

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SIGN PART

ou how to d

igin to selec

, modify

٢

T CATIA T

design this p

ct the center

y the dimens

TUTORIAL

part using C

r of the circl

sion by doub

L

CATIA v5

le.

ble click an

nd add the

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Exit from the sketch plane using

Click on pad and select your circle you made in the previous step. Follow the pad definition as seen below (note: the profile surface (sketch.2 may have different name in your file))

Make a plane offset from XY plane as shown below

Make sure the plane in the positive Z direction, otherwise click on reverse direction.

Choose the plane you made and click on sketch .

Draw a rectangle as shown in the figure and add the dimensions (45 and 24) using .

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To have the rectangle symmetrical about X-axis and Y-axis…hold the Ctrl button and choose the

two lines parallel to the X-axis then select the X-axis, click on and choose symmetry

You will get the following

Use pad and make sure the direction is downward…if not, click on reverse direction.

Change the type from dimension to up to next and press ok

Your part should now look like this

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Click on plane and select the offset from plane…choose YZ plane and the distance 25mm…make sure the direction in the x-direction, otherwise click on reverse direction.

Choose the plane you made and click on sketch and draw a line in the middle of the thickness as shown in the figure

Select the line and use the right click and choose line.object

Choose definition from the menu and click the box construction element

Make the line coincides with the z-axis by holding the Ctrl and selecting both the line and the

Z-axis and click on choose coincidence from the box

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Draw a circle of diameter 50 and make the center coincides with the line you made by

selecting both the center of the circle and the line while holding the CTRl and click on and choose coincide.

Again, hold the CTRL and select the center of the circle and the edge shown

and click on and choose coincide.

Draw a horizontal line of length 13mm and while holding the CTRL select the line and the

edge shown previously and click on constrains and add the dimension of 32 mm. Also coincide the left point of the line you just made with the construction line you made

previously by selecting both lines while holding the CTRL and click on and choose coincide, your work should now look like this

edge

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Draw a line from the right end of the line of 13mm and make it tangent to the circle by holding the

CTRL and selecting both the line and the circle and click on and choose tangency.

Remove the extra length of the line you just made using the icon ( the icon is below the

icon).

Draw another circle of diameter 28mm and make the center coincides with the construction line.

Also select the center of the circle and the edge mentioned previously and click on to add the dimension of 44 mm.

Draw a vertical line tangent to the circle until reaches the big circle.

Draw a small circle of diameter 6mm between the vertical line and the big circle using the

tangency constrains from .

Remove any extra portions using the erase . The sketch should now look like this

remove

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Use the mirror function on the three lines and the small circle you made by holding

CTRL and select them then select on the mirror . Now remove the circular arcs inside the sketch and make sure the sketch is a closed contour with no extra lines. It should now look like this

Exit from the sketch

Click on pad and choose the type up to plane and select the YZ plane.

Your part will now look like this

Click on plane and select the offset from plane…choose YZ plane and the distance 25mm…make sure the direction in the negative x-direction, otherwise click on reverse direction.

edges

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Choose the plane you made and click on sketch .

To not repeat the most part of the sketch select the edges shown in the previous figure and

click on to close the sketch, draw the big circle in the same way as the previous sketch and erase the inside arc.

Exit the sketch

Click on pad and choose the type up to plane and select the YZ plane.

Your part will now look like this.

Select the XY plane and then click on to create a plane with offset 166 mm.

Select the plane you just made and click on sketch

Draw a circle centered at the origin with diameter 44 mm and exit from the sketch .

Pad the circle you just made and choose the type up to next. Your part should now look like this

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Select the XZ plane and then click on to create a plane with offset 35 mm.

Select the plane you just made and click on sketch

Draw a circle of diameter 28 mm.

Coincide the circle in the middle by selecting the first edge and the second edge and the

center of the circle while holding CTRL. Click on and choose symmetry.

Also hold CTRL and select both X-axis and the center of the circle and click on and make the dimension 96mm.

exit from the sketch .

Pad the circle you just made and choose the type up to next. Make sure the directions is toward the main body, otherwise click on reverse direction.

The part is now look like this

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Select face 1 and click on sketch .

Draw a circle of diameter 41mm. Hold CTRL and select the circle and the circular edge

shown in the previous figure, then click and choose concentricity.

Exit the sketch by clicking on

Use the pocket and choose up to last.

Repeat the same steps to the other faces. Note that the pocket in all faces is up to last except faces 3&4 are up to next.

The final part is now look like this

Face1

Face2

Face3

Face4

edge

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Now choose the edge fillet and set the radius 3 mm and select the required fillets.

Change the view by clicking on or the icons behind it for more obvious view

DONE!!!!!!

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D5

1010

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Parametric design

Problem 1 : Build a parallelogram with three length parameters L, W and H to control its dimensions.

Draft one face of the parallelogram ( ) using angle parameter A.

Problem : build the figure shown below using three parameters R of type length, B of type Boolean, and A of type angle to perform the following.

Four stiffeners are existed, each stiffener has a height of 80mm, a width from the rotation axis as 0.75 R and a thickness of 5 mm.

Four holes are also existed, the holes diameters are R/4 and are centered at 0.75R from the rotation axis of the part.

The stiffeners and the holes will disappear if R is less than 100mm.

The upper pad (box) will disappear if B is set to false.

One side of the pad will be draft using the parameter A.

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max(R

,100mm)

0.75R

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Problem: Design the part shown using the parametric design and satisfy the following

1- Only one parameter is used in the design called ( Dim ).

2- The diameters of the smaller and the larger disks are Dim and 2xDim, respectively.

3- The thickness of both disks is Dim/5.

4- The 20mm-Hole will disappear if Dim is set to or less than 40mm.

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Problem: build the parametric model for the part shown using two parameters R and A. In this model,

the angle is controlled by the parameter A but not to exceed 60 degrees.

Dimensions in mm

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Problem: build the parametric model for the part shown using two parameters R and A. In this model, the angle is controlled by the parameter A but not to exceed 50 degrees.

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Problem: Design the part shown using the parametric design and satisfy the following

1- Two parameters are used (Ang and Stiff_NUM ). The Stiff_NUM will specify the number of

stiffeners used but not to exceed 8. If Stiff_NUM is more than 8, the stiffeners will stay 8.

2- If the angle Ang is set more than 60 deg., the stiffener and its repetition will be deactivated.

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Problem: Build the parametric model for the part shown using three parameters R, A and B. In this

model, the angle is controlled by the parameter A but not less than 40 degrees. The holes will

disappear if R is less than 100mm. The two side rods are controlled by the Boolean parameter B

R0.9R

0.8R

0.2R

0.1R

10mm dia.10 deg. spacing

10mm 80mm

Dimensions in mm

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Assembly

Problem: Build the parts with names indicated and conduct the assembly as shown

Note: put all parts and the assembly in the same folder (name the folder as your ID)

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300

20 20120

20

20

50

50

50

60o

60o

60o

60o

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10

10 120

1010

100

60o

60o

60

60

60o

6x leg

2x support

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120 o

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Problem 1: Build and assemble the parts as shown in the figure

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SIMULATION

Problem2: Build the two parts shown and establish 4 mechanisms. Make 4 simulations (one for each

mechanism). The mechanisms are

1- prismatic joint

2- revolute joint

3- cylindrical joint

4- screw joint

The simulations should start and end at the ends of the shaft

Problem: B

stand. The

Build and as

sliding mot

ssemble the

tion ranges f

e parts show

from 0 to 80

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wn and simu

0mm. Name

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ulate the mo

e the parts a

otion such th

as indicated

hat the block

d.

ks slide on

the

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Note: the initial position will be as shown in the figure

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Problem: Build and assemble the parts shown and simulate the motion such that the blocks slide in the

slots of the plate. The sliding motion ranges from 0 to 260mm. Name the parts as indicated.


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Problem: Build and assemble the parts shown and simulate the motion such that the 50mm-disk is

rotating two complete cycles ccw (i.e. it is the pinion and the 100mm is the gear). Name the parts as

indicated.


D10

7535 90

300

180

D10D100

D50

150

D20

50

30D10

All pads are 10mm thick

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Problem: Build and assemble the parts shown and simulate the motion such that the CAM is driving

Note (files are in folder sim0)

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Problem: Build and assemble the parts shown and simulate the motion such that GEAR1 is driving

Note (build the CAM using spline in sketch, use proper size)

Example

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Problem: Build and assemble the parts shown and simulate the motion


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settings for first use - mechfamilymechfamilyhu.net/download/uploads/mech147431837321.pdf · r12.5...

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