topsolid model training

THE INTERGRATED CAD/CAM/ERP SOLUTION

VIETNAM CAD/CAM TECHNOLOGY .,CO.LTD Support email: [email protected]

Shaft

Topics covered: • Create a simple contour. • Dimension/Half part dimension. • Revolved solid. • Extruded solid. • Trimming with curves. • Creating a reference system. • Subtraction (cutting). • Chamfer & Fillet. • Simple part drawing.

1 Starting a new design document

Open a new file then select a new design document and select a template.

Click on the profile icon in the context bar . The Profile command will start automatically.

NOTE: this will only happen the first time you select the context menu.

Use the profile tool to draw the profiles shown below. Create the profile by clicking free points but use the cursor feedback information as a guide. Start your profile on the coordinate centre point.

To close a profile either click onto the first segment or click onto the last (previous segment). Then end the open profile (shown in grey line).

Click STOP.

2 Dimensions

Dimension both contours as shown, use the and for diameters.

3 Create the revolved solid

Activate the shapes context menu select the revolved shape icon .



Select your curve then select the horizontal base as your rotation axis.

Click OK to accept a 360 degrees rotation.

NOTE: Changing the direction (in this case) will have no effect.

4 Adding the chamfer

Click on the chamfer icon .

Choose the chamfer type as LENGTH/LENGTH, enter 1mm in the first length box then click onto the front edge of the shaft.

5 Limiting with a profile (trimming)

Click on the trimming icon .

For the shape to trim select the shaft.

For the trimming shape select the open profile.



Ensure that the large red arrow is pointing towards the inside of the curve (area to delete) then click OK.

Cut the keyway.

Select the menu Tools, Coordinate system.

Select XZ.

Click SET AS CURRENT then top view.

Draw and extrude the key.

Draw a circle using the circle icon .

Radius 8mm, Centre point 17,8,0. Extrude the circle to 4mm.

Activate the shape context menu then select the extrude icon .

Click on the circle.

Click on the NORMAL button to change it to CENTRED, then type in 4mm.



6 Subtraction

Click on the subtraction icon .

Select your shaft as the shape to modify.

Select your extruded circle as the tool shape to use.

NOTE: Use the Esc key to exit the command afterwards.

Save your file and name it Shaft.

7 Create a drawing of the shaft

Open a new draft document.

Use the New document icon then select Draft as the document type and select a Associative A4 vertical mm template. Your windows will tile vertically automatically.

NOTE: This only works if there is only one design document open. In which case use the tile windows

icon .



Select the main view icon .

Click on the shaft.

Orientate the view with the green arrows and type a new scaling factor if required, select OK to accept.

Position the view onto the sheet and left click.

Select AUXILIARY VIEW (or right click) to create the projected and isometric views.

Save your file and exit.

NOTE: By default the name of the file will be Shaft.dft. You may of course choose another name.



Modifications to the shaft

8 Drilling holes

Use the menu file Open icon and select the file Shaft.top.

Click OK.

We will add 2xM4 tapped holes onto the face of the cut-out:

Select the drilling icon , select the face and use the cursor to position the first hole position. Notice the green and yellow dimensions.

Select hole+tapping.



Select M4, tick Through and OK.

The design calls for 2 holes. So use the PROPAGATE button to pattern the second hole.

Select LINEAR.

Select one of the long edges to define the propagation direction. Ensure the direction arrow is correct.

The total distance is 25mm.

Total number is 2.

Save your file.

Open the shaft drawing file Shaft.dft.



9 Local Section Let’s add a local section to the main view.

Activate the views context menu and select the local section icon then select the main view.

Select B-SPLINE.

Draw the spline by clicking points, then STOP.

NOTE: You could in fact draw any shape first, then select CONTOUR.

Click onto the outline of the shaft.

Result.

10 Drilling dimensions

Activate the dimensions context menu then select the hole dimensions icon .

Select any element belonging to a machined hole, then place the dimension.

Save the file.



Cover Plate

Topics covered:

• Cylindrical primitive. • Drilling. • Coordinate systems. • Points. • Propagation. • Chamfer. • Feature tree. • Detail drawing.

1

New document

Open a New document

select Design as the type.

2

Cylinder

Activate the shapes context menu then select the cylinder icon .

Enter 50mm.

Select Z+.

Enter 6mm.

Enter 0,0,0

.



3 Drilling Drill a Ø14 plain hole in the centre of the cylinder.

Select the drilling icon then select the face, fill out the drilling dialogue for a plain 14mm hole.

4 Sketch for the PCD

Change your line color and style .

Draw a circle diameter 38mm centred on the 0,0 point.

Draw a vertical sketch line using through 0,0.

Select CHANGE TO VERTICAL then ENTER or click the centre point.

5 Points

Click on to activate the points menu bar.

Select the curve intersection icon .

Click on the circle followed by the vertical line. Pick close to actual intersection point to identify which one of the two possible solutions you require.

6 Place the coordinate system

Click on the icon to activate the coordinate systems menu bar.



Select the coordinate system on a point icon . Then click on the point created at the intersection.

Drill Ø5 holes on the newly created coordinate system.

Select COORDINATE SYSTEM.

Click onto the coordinate system then onto the face of the cover plate.

Select PROPAGATE.

Select CIRCULAR.

Select Z+ (or select the vertical side of the cover plate).



Right click to accept 360°.

Type 3 and Enter.

Esc to exit the command

7 Chamfer

Select the chamfer icon , place a 1mm x 45° chamfer around the top edge.

8 Feature tree To open the feature tree click on the left hand side of the graphics window, then onto your shape.

Alternatively left click and drag on the left hand side of the graphics window to open it, then right click in this area and select Edit then click on the shape.

Change the chamfer 1.5mm. Change the number of holes to 6. Change the diameter of the centre hole to 10.

Now change them all back to their original values with

Save the file as CoverPlate.top.



9 Detail drawing of the cover plate

Open a New document with select Draft as the document type. Create a Main view.

10 Axis Drawing axis may be placed one at a time or in this case we will do all the axis on the part automatically.

Select PROJECTED AXIS.

Select your view.

Select AUTOMATIC.

Then OK.

11 Cross-section

Select the full section icon .

Select CUTTING CURVE DEFINED IN DRAFT.



Click the vertical axis.

Select OK.

Select OK and place the view.

12 Change the position of the A-A

Click the modify tool then click the text A-A.

Select FREE POSITION to put the text wherever you want it.

NOTE:

INVERT will change the direction of the cutting arrows. EXTREMITIES controls the position of the 2 ends of the cutting line.



13 Dimensions

Dimension the holes .

Dimension the chamfer with this icon .

NOTE: For chamfers that are not at 45° you must use the START AND TERMINATE SEGMENTS function.

Select the lines on either side of the chamfer to establish the angle and size.

Put the other dimensions onto the drawing with and select the relevant lines and arcs.

Save the file as CoverPlate.dft



Body

Topics covered: • Cylindrical primitive • Sketch contours • Extrude + Unite • Propagation • Drilling

1 Open a new document select Design as the type

2 Cylinder

Activate the shapes context menu

then select the cylinder icon

.

Enter 75mm.

Select Z+.

Enter 90mm.

Enter 0,0,0.



3 Add the feet

Draw a construction circle of Ø100.

Draw a vertical construction line through 0,0.

Draw a circle of radius 12.5 on the top intersection point of the circle and the line. Use the “cursor slide” selection tech- nique to find the intersection.

Draw 2 vertical lines tangent to both sides of the circle.

Draw a horizontal line at 0,30.

Change your line color and style and draw a contour by tracing over the construction lines.



Extrude the contour 8mm vertically upwards.

NOTE: Click on the red arrow to change the extrusion direction.

Join the two parts together with the Unite icon .

4 Propagation

Propagate the feet around the base with . Use a CIR- CULAR PROPAGATION and the cylinder as the propagation axis. Make a total of 3 feet around 360°.

Drill the Ø12 holes in the feet in the dialogue select a plain drilled hole through.

5 Propagate the holes

Select the PROPAGATE button then simply select the face of one of the feet. The propagation will be “copied” from the feet to the holes.



Drill another hole in the centre of Ø50 with a chamfer (or countersink) of Ø70 x 45°.

Select the top face of the body then select hole + countersinking as the hole type. Note the 2 dia- logues



6 Change the workplane Select the menu Tools, Coordinate system.

Select XZ.

Choose SET AS CURRENT then TOP VIEW.

Draw a circle of diameter 50 at 0,28.

Extrude the circle by 40.5 in Z+.

With the unite icon join them together.

Open the feature tree and move the drilling operation so that it comes after the unite. This will have the effect of removing the obstruction from inside the hole. Close the feature tree by clicking on the edge



7 Drill the counter bored hole Ø14-25 Select the face of the Ø50 cylinder.

Choose hole+facing and fill out the dia- logues as shown.

.

8 Drill and tap 3 holes M4

Set the current coordinate system onto the face of the 50mm cylinder .

Select the normal (or top) view .

Draw a 38mm diameter circle at 0,0 .

Place the axis lines on the circle .



Create another coordinate system at the intersection between the circle and the horizontal axis with

(use the cursor slide again if you wish).

Select the drilling icon .

Select COORDINATE SYSTEM then click on the new coordinate system, then the cylinder face. Choose the tapped hole and fill out the dialogue as below (note the depth of the holes).

Propagate the holes with a circular propagation using the 50mm cylinder as the propagation axis. We need 3 holes.

Finally put 1mm fillets around the edges and corners of the feet as shown. Save the file as Body.top.



9 Detail drawing of the body

Open a new document with select Draft as the document type. Create a main view and projected view as shown.

10 Section view

Click on the section icon then onto the main view.

Click the circle; the circles axis will appear automatically, use the vertical line of the axis as the cutting contour.

Select OK.

Set the hidden lines to HIDDEN then OK.

Place the view on the drawing.



11 Partial section

Draw the projected axis .

Draw a line from the centre of the 50mm hole to the centre of the drilled hole in the foot.

You can use the trim function to extend as well as shorten. Select the line and click on a point just outside the foot (as shown).

Select MAKE TRIM.

Click on the partial section icon .

Select the view.

Click on the line we have just drawn.

Select OK.

Set hidden lines as HIDDEN, then OK.

You will see that the view is incorrectly aligned, go back and select NO and YES as shown.

Position the view correctly and Esc to exit the command.



Dimension the rest of the drawing as shown.

12 Tolerance reference

Activate the dimensions and detailing context menu then .

Click on the line to use as a reference and place the symbol.

13 Geometric tolerance

Select the geometric tolerance icon .

Select the correct type of symbol from the list then OK.

Click on the element you wish to refer to.

Click onto the reference letter A, then STOP.

Save the file as Body.dft.



Piston

Topics covered:

• Freehand contour. • Revolved solid. • Grooves. • Slots. • Drilling on cylinders.

1

Shape creation

Open a new document

select Design as the type.

Draw the initial profile as shown .

Dimension with .

Revolve the shape with .

2 Groove

Select the groove icon .

Click on the face as shown.



Click on the front face.

Select OK.

Enter the values d=5, D=45 and l=2

Then OK.

3 The Slot Place a coordinate system on the back face. From the coordinate sys-

tem menu bar, select Constrained coordinate system on face .



Draw the axis on the circular outline .

Select the slot icon .

Select the face.

Click on the vertical axis line.

Choose the U type slot. Then OK.

Type 4mm. OK.

Type 10mm. OK.

Select OK..

4 Drill the Ø4 hole As the face to drill through is not planar we will need to use a coordinate system.

Select the current coordinate system icon .

Select ABSOLUTE COORDINATE SYSTEM.



Select the top view icon .

From the points menu bar , draw a point .

Place the point 5mm in from the end of the 15mm diameter.

Create a coordinate system on a face and point face = face of the Ø15 cylinder and the point is the preceding point.

Drill the hole using this coordinate system . Make it a plain drilled hole Ø4 through all.

5 Detail drawing of the piston

Open a new document with . Select Draft as the document type. Create a main view and projected view as shown.

Create a local section as shown.

Draw the axis .

Dimension the part as shown .



6 Adding tolerances

Click on the dimension to adjust with , then select the tolerance style. Enter the values for the upper and lower limits as shown below.

Before After

7 Adding Notes

Activate the detailing context menu with

. Then select the notes icon

.

Enter your text, notes and set the style, etc.…

Place your note on the drawing.

Click on a line segment to place the head of your leader.

Select STOP.



8 Shaded view

Modify the view with then tick the shaded view checkbox.



Connecting rod

Topics covered: • Thicken. • Symmetry constraints. • Extruding. • Propagated drilling.

1 Constrained line

Draw a line with .

Dimension the line .

Adjust the length to 3mm. Add a symmetrical constraint about the Y axis.

2 Thicken the profile

Select the thicken icon .

Enter the thickness 5mm and select CIRCLES OUTSIDE then click on the line.

Select OK (or right click).

Extrude the contour 4mm .

Drill a hole in one end Ø4mm.



Propagate the drilled hole using SIMPLE MIRROR through the YZ plane.

Save the file as ConnectingRod.top.



Arm

Topics covered: • Sketch Contours. • Modifying elements. • Extrude solids. • Unite. • Merge (contours). • Pocket. • Drilling. • Standard profiles. • Fillets. • Some advanced drawing methods.

1 Arm profile

Open a new document select Design as the document type.

Draw 2 circles with the circle icon and dimension change to a dotted line first.

NOTE: You can draw the circles roughly then correct their size and position using the dimension tool, however it’s a good idea to place the first one on the coordinate 0,0.

Draw a 2 lines tangent to the 2 circles use the Contour command but use a different colour.

Click the first circle.

Ensure PASS ON SEGMENT is selected, click the second circle at 2 o’clock and again at 5 o’clock.

Click on the first circle to close the profile.



2 Modify an element

Click on the modify tool then select the top straight-line segment of your profile.

Simply type 125mm as the circle size (no need to select the circle button) and Enter.

If the arc goes the wrong way, click on the tool again and select INVERT.

Repeat the procedure for the bottom arc using 70mm radius.

3 Extrude the shape

Use the extrude icon extrude the 2 circles to a thickness of 11mm (CENTRED).

NOTE: Use the lasso to select them both at the same time.

Then extrude the contour by 5mm (CENTRED). .

Unite .



Select the centre shape.

Select the two cylinders.

Esc to exit.

4 Merge contours

Draw a circle Ø14 and a rectangle

3X5 as shown : use the RECTANGULAR option and select the two diagonal points.

Hold down the right mouse key and select AUTO DIMENSION, then use SYMMETRY constraints to add a constraint on the X axis. Add a 10mm dimension to position the rectangle.

Use the merge icon to merge the 2 contours together. Remember to pick the contours on the section you wish to keep.

5 Pocket

With the pocket command use the profile to cut the pocket on the boss.



Select the face.

Select the profile.

Select Through all and OK.

6 Drilling

With the drilling icon click on the face of the other boss. As the boss is circular the system will automatically select the centre. Select a plain hole then OK.



Type in 10mm for the diameter and click Through all then OK.

7 Do the drawing

Use the New document icon then select Draft as the document type and select a Associative A4 horizontal mm template. Your windows will tile vertically automatically.

Select the main view icon .

Select AUXILIARY VIEW (or right click) to create the projected and isometric views as shown.

8 Create a detail view

Click on the detail view icon .

Click on the main view (shown above with a highlighted border).



Place the view where you want it.

9

Projected dimensions

Activate the dimensions context menu

then select the projected dimensions icon

.

Select the main view.

Click on AUTOMATIC.

Repeat for the other views.

Select CIRCLE.

Click on a point close to the keyway then click again to open up the circle.

NOTE: These are driving dimensions, which means that they can be changed in the drawing and will directly change the model.

Save the file , name the files Arm.top and Arm.dft.



10 Modify the Arm Open the fie Arm.top. To see the elements that are driving the model

click on the driving elements icon . Click on the centre face.

Use the circle tool to draw an arc of radius 90mm passing through the centre of the 2 circles.

NOTE: change the color and line style using and .

11 Standard Profile

Draw a radiused slot using a standard profile. Double click on each of the values. Type in 90mm for the radius, 10mm for the thickness and 20 degrees for the angle. Ensure the key point is set to middle.



Place the slot onto the centre of the 90mm arc.

Now use the pocket command once again to cut the pocket through the arm. This time use the fillet option to add a 1mm fillet top and bottom.

12 Fillets

Activate the shapes context menu then select the fillet icon .

Select the four edges between the boss’s and the centre section and click compute fillets.



Save the file with .

Open the arm’s draft document to see that it has automatically been updated with the changes.



Yoke

Topics covered: • Rectangular contour. • Extrude. • Chamfer. • Drilling a face.

Use your newly acquired skills to model this part yourself (it needs to fit into the cut-out on the end of the shaft and the connecting rod fits inside the slot).



A-A

2 x M4



A-A

3 holes Ø5



A-A

3 tapping holes M4x5 Counterbore Ø25x5

B-B

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