tut008

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Tutorial Nº008

BLOCKS EXERCISES / EJERCICIOS DE BLOQUES

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EXERCISES

If you have completed this two tutorials in this way and have practiced some additional exercises, youshould be able to become more acquainted in Solidworks Software. You will not learn any new topics, butyou will find out how to apply what you have learned.

EXERCISE 1

Available time: 45 minutes.Build this part in SolidWorks. Your assignment is to build a part

in SolidWorks.

Unit system: MMGS (millimeter,gram, second).

Although inches are often used inthe United States, we will work inmillimeters and grams, using themetric system, which is the defaultunit system in Europe, except forin England.

Decimal places: 2. We will work with two decimals.This is a default setting too.

Part Origin: Arbitrary. The origin is at a random position,although in some assignments theposition of the origin is deter-mined.

A=63mm, B=50mm, C=100mm. Some dimensions are indicated inthe model with the letters A, B, orC. You will replace them with thevalues as given on the left.

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All holes through all, unless other-wise specified.

All holes will go through the wholemodel, unless otherwise specified(this is often not visible in thedrawing or illustration).

Part material: Copper.Density = 0.0089 g/mm^3.

The part is made out of copper inthis example.

The specific weight of copper is

0.0089gram per mm³.

What is the overall mass of thepart in grams?

a. 1205

b. 1280

c. 144

d. 1108

What is the total weight of thepart? It is a multiple choice ques-tion with four possible answers.

Work plan Although the shape of this assignment looks fairly complicated at firstglance, you will see that it is built using boss-extrude and cut-extrudecommands. The hardest part of the assignment is making a work plan forit. Look at the shape very closely and try to divide it into different features.It is very important to do this before you start modeling! Below youwill learn the steps we have used to build the model. Every step is a featurethat we will make. There are 10 features In total.

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Once you have made your plan, the modeling is rather sim-ple.

Of course, you can build your model in another way. There is no single cor-rect way, but you complete it as simply as you can, using as few featuresas possible.

Let’s look at how to build the model from here.

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1 Start SolidWorks and opena new part.

2 Select the Right Plane and

make a sketch as shown onthe right.

Can you make this sketchyourself already? Verygood. Continue with Step 8.

If you do not succeed doingit yourself, try using thenext few steps.

3 Draw a shape as you seeon the right.

Make sure the line from theorigin runs horizontally to

the right and has a lengthof about 50mm. With thisas a base the proportionswill be right.

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4 Draw the arc now:

1. Click on Arc in theCommandManager.

2. Click on Tangent Arc in

the PropertyManager.3. Click on the lower end

of the vertical line asshown on the right.

4. Click on the upper endof the vertical line asshown on the right.

5 Put the midpoint of the arcyou have just drawn exactlyon the left vertical line. Bydoing so, you are sure thearc is always 90°.

1. Select the midpoint of the arc.

2. Select (holding the

<Ctrl> key) the leftvertical line.

3. Click on ‘Coincident’ inthe CommandManager.

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6 Make a fillet at the bottomof the sketch:

1. Click on Sketch Fillet inthe CommandManager.

2. Check to make sure youhave set a radius of ‘10mm’ in the Proper-tyManager (this is thedefault value).

3. Click on the corner youwant to fillet in thesketch.

7 Set the dimensions in thesketch as shown on theright.

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8 Extrude the sketch to ‘50mm’ .

9 Next, make a sketch, asshown on the right.

1. Select the front surfaceof the model to draw anew sketch on it.

2. Click on the pointwhere the line convertsinto the arc.

Draw the circle and set thedimension in the sketch.

10 Make an Extruded Cut fromthe sketch, setting thedepth to ‘13mm’ .

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11 Make a sketch as shown onthe right.

Can you do it yourself? Pro-ceed to Step 15.

If this does not work out,watch the following steps,which tell you how to han-dle this.

12 1. Select the deeper planefirst. On this surface wewill make a new sketch.

2. Draw a circle and makesure the midpoint is ex-actly at the point wherethe straight line con-verts in to an arc.

3. Set the size of the circleto ‘Ø20mm’ .

13 Push the <Esc> key onyour keyboard to end the

‘Smart Dimension’ com-mand.

1,2 Select the line and thearc as shown on theright.

3. Click on ‘Convert Enti-ties’ in the Command-Manager.

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14 1. Click on ‘Trim Entities’ in the CommandMa-nager.

2. Click on ‘Trim to closest’ in the PropertyManager.

3. Click on the three partsof the sketch that needto be removed.

15 Extrude this sketch to adepth of ‘5mm’ .

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16 Make the sketch as in theillustration on the right.

1. Select the plane todraw a sketch on.

2. Draw a circle. Makesure the midpoint is ex-actly on the pointwhere the straight lineconverts into an arc.

3. Set the size of the circleto ‘Ø10mm’ .

17 Extrude the sketch to adepth of ‘8mm’ .

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18 Make the sketch as drawnon the right.

Can you manage it your-self? If you can, proceed toStep 24.

If you cannot do it all byyourself, follow the nextsteps.

19 1. Select the plane youwant to make a sketchon.

2. Click on ‘Sketch’ in theCommandManager toopen the sketch.

Tip! In most cases when we want to make a sketch, we select a plane and startdrawing a line or circle. SolidWorks will automatically open the sketch then.

In the last step you opened the sketch explicitly. Why? Because we will use

the Convert Entities command first and the sketch must be open to use thiscommand. That is the reason for this action.

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20 1. Select the three edgesin the model as sownon the right.

2. Click on ‘Convert Enti-ties’ in the Command-

Manager.

21 1. Select the edge asshown in the illustration

2. Click on ‘Offset Entities’ in the CommandMa-nager.

3. Set the distance to ‘5mm’ in the Property-Manager.

4. Uncheck the option ‘Se-

lect Chain’ .

5. Check the option ‘Re-verse’ to be sure thecopy will be put at theright side.

6. Click on OK.

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2. Select the option ‘Cor-ner’ in the PropertyMa-

nager.

3-6 Make the upper cor-ners by clicking as in-dicated in the illustra-tion.

23 Next, make the bottom cor-ner points by clicking asshown on the right.

24 Extrude this sketch over ‘8mm’ .

Use the Reverse Directionkey to make sure the extru-sion extends in the right di-rection.

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25 Make the sketch as shown.

Can you manage this byyourself? Continue to Step30. If not, follow the nextfew steps.

26 Select the plane on whichyou want to make asketch.

Draw three straight lines asshown in the illustration.

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27 1. Click on Tangent Arc inthe CommandManager.

2. Click at the bottom endof the left vertical line.

3. Click on the bottom endof the right vertical line.

28 1. Select the midpoint of the arc.

2. Hold the <Ctrl>-keyand select the right ver-tical line too.

3. Click on ‘Coincident’ inthe PropertyManager.

29 Add the two dimensions asshown.

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30 Make an Extruded Cut fromthis sketch with a depth of

‘9mm’ .

31 Make the sketch as shownand continue to Step 35.

If you cannot manage thisyourself, follow the nextfew steps.

32 1. Select the plane tomake the next sketchas shown on the right.

2. Draw a circle, justabout the size and posi-tion as in the illustra-

tion.

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33 1. Select the midpointfrom the circle.

2. Hold the <Ctrl>-keyand click on the pointas shown on the right.

3. Click on ‘Horizontal’ inthe PropertyManager.

34 Set the sizes as shown inthe illustration.

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35 Make an Extruded Cut fromthis sketch.

Select the option ‘Through All’ .

36 Make the sketch as shownon the right and continue toStep 40.

If you cannot manage thisyourself, follow the nextfew steps.

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37 1. Select the upper sur-face from the model

2. Click on Normal To inthe pop-up menu.

38 1. Click on Rectangle inthe CommandManager.

2. Draw the rectangle asshown in the illustrationon the right.

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39 Set the two sizes as shown.

40 Make an Extruded Cut from

this sketch and set thedepth to ‘Through All’ .

41 Make the sketch as shown.

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42 Make an Extruded Cut fromthis sketch and set thedepth to ‘Through All’ .

43 Finally, make the sketch asshown in the illustration onthe right.

44 Make an Extruded Cut fromthis sketch and set thedepth to ‘Through All’ .

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45 The model is now ready.We have to select the kindof material, and the as-signment says ‘copper’ .

1. Right-click on ‘Material’

in the FeatureManager.

2. When ‘Copper’ is in thelist, you can click on it.If not, click on ‘Edit Ma-terial’ .

46 1. Open the list ‘Copper

and its Alloys’ in thePropertyManager.

2. Select ‘Copper’ .

3. Just to be sure: check the density under

‘Physical Properties’ . Isit the same as in theassignment?

4. Click on OK.

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47 We want to know theweight of this part:

1. Click on the tab ‘Eva-luate’ in the Com-mandManager.

2. Click on ‘Mass Proper-ties’.

48 In the pop-up menu youcan read the weight:

‘1280.33 grams’ . This isanswer B from the assign-ment.

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EXERCISES 2

Available time: 45 minutes.

We are going to build a second model. Again, this is an assignment similarto the first one.

Build this part in SolidWorks.

Unit system: MMGS (millimeter, gram, second).

Decimal places: 2.

Part origin: Arbitrary.

All holes through all, unless otherwise specified.

Part material: 6061 Alloy.

Density = 0.0027 g/mm^3.

What is the overall mass of the part in grams?

a. 2040.57

b. 2004.57

c. 102.63

d. 1561.23

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Work plan Again, you have to think about the way you are going to build this model.Below are the steps you should take. Every step is a feature.

49 Open a new part and makethe sketch as shown on theright on the Right Plane.

50 Extrude the sketch to

‘100mm’ .

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51 We will create the firstauxiliary plane:

1. Select the edge asshown.

2. Hold the <Ctrl> keyand select the plane asshown in the illustra-tion.

3. Click on the arrow be-neath ‘Reference Geo-metry’ in the Com-mandManager.

4. Click on ‘Plane’ .

52 1. Set the corner of thenew plane to ‘30°’ inthe PropertyManager.

2. Check ‘Reverse direc-

tion’ .3. Click on OK.

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53 Make the sketch as shownin the illustration on theright and continue to Step

58.

If you cannot make this

sketch by yourself, thenfollow the next few steps.

54 1. Select the auxiliaryplane you have just

created.2. Click on Line in the

CommandManager.

3. Click as shown to getthe beginning of theline.

4. Click as shown to getthe second point fromthe line.

5. Move the cursor awayfrom the last point but

do NOT click!

55 1. Return to the end pointof the line with thecursor (do NOT click!)

2. SolidWorks startsdrawing an arc now.

3. Click as shown to getthe second point of thearc. Make sure to drawhalf a circle.

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56 SolidWorks will automati-cally draw lines again.

Draw the two last lines.

Tip! You saw an ‘automatic’ change of function between the Line and Circlecommand. This is called Autotransitioning in SolidWorks and is very conve-

nient if you want to build a sketch from lines and coincident circles.

57 Set the two dimensions asshown with Smart Dimen-sion.

58 Make an extrusion fromthis sketch.

1. Click on Reverse Direc-tion in the Property-Manager to make surethat the extrusion goesdownwards and not

upwards.2. Select ‘Up to Next’ to

set the depth.

3. Click on OK.

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59 Make the sketch as shownin the illustration on theright and continue to Step

63.



60 1. Select the plane tomake a sketch on.

2. Click on Arc in theCommandManager.

3. Click on 3 Point Arc inthe PropertyManager.

4. Set the first arc pointat the corner asshown.

5. Set the second pointon the edge.

6. Set the third point at arandom position.

61 Insert the two dimensionsas shown.

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62 Draw two small lines abovethe arc as shown.

63 Make an Extruded Cut fromthis sketch.

1. Select the option ‘UpTo Surf ace’ to set thedepth.

2. Click on the planewhich indicates the

end of the ExtrudedCut.

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64 Make the sketch on thesloped plane as shown inthe illustration on the rightand continue to Step 58.



65 1. Select the sloped planefirst to make a sketchon.

2. Click on Circle in theCommandManager.

3. Keep the cursor still

just above the rounded

edge at the top of theplane. Do NOT click!

4. The midpoint of theedge appears. Click onthat to set the middleof the circle.

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66 Draw the circle and set thedimension.

67 Draw two centerlines asshown on the right.

Push the <Esc> key afteryou have drawn the firstcenterline, and then drawthe second centerline.

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68 1,2 Select both centerlines (use the <Ctrl> key).

3. Click on ‘Offset Entities’ in the CommandMa-nager.

4. The distance is ‘5mm’ .

5. Select the option ‘Bi-directional’ .

6. Select the option ‘Capends’ .

7. Select the option ‘Lines’ .

8. Click on OK.


2. Click on the option ‘Trim away inside’ inthe PropertyManager.

3. Click on the circle.

4. Click on all four linesthat run through thecircle. The pieces atthe inside of the circlewill be removed.

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70 1. Click on ‘Trim to clos-est’ in the PropertyMa-nager.

2. Click on the parts of the circle that you

want to be removed.

71 Did you trim everything?Now you can make an Ex-truded Cut from the

sketch. Set the depth to ‘5mm’ .

72 Make the sketch as shownin the illustration on theright.

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73 Make an Extruded Cut ‘Through All’ .

74 We will now make thesecond auxiliary plane.

1. Select the edge asshown.

2. Hold the <Ctrl>-keyand select the plane asshown in the illustra-tion.

3. Click on the arrow be-neath ‘Reference Geo-metry’ in the Com-mandManager.

4. Click on ‘Plane’ .

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75 1. Set the angle of thenew plane to ‘20°’ inthe PropertyManager.

2. Click on Reverse direc-tion, so the plane ex-

tends in the right di-rection.

3. Click on OK.

76 Make a sketch as shown onthe plane that you have

just created.

In Steps 54 to 56 you havealready made a similarsketch. If you want, youcan check these steps tosee how it is done.

Tip! The bottom corner points from the sketch are not exactly on the edge of the model (not coincident). This is because the plane you have inserted

(Plane2) is also exactly on that edge. How can you solve this? Hide theplane temporarily. Click on Hide/Show Items, and next on Planes.

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77 Make an extrusion fromthe sketch.

1. First click on ReverseDirection in the Proper-tyManager to extend

the extrusion down-wards.

2. Select the option ‘Up To Next’ .

3. Click on OK.

78 Make the sketch as shownon the right.

79 Extrude the sketch with aheight of ‘15mm’ .

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80 Make the sketch as shownon the right.

81 Make an Extruded Cut ‘Through All’ from thissketch.

82 The model is now finished.We will select the kind of material now.

1. Right-click on ‘Material’ in the FeatureManager.

2. Click on ‘Edit Material’.

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83 1. Open the list of ‘Alumi-num Alloys’ in the Pro-pertyManager.

2. Select ‘6061 Alloy’ .

3. Verify that the densityis the same as the onein the assignment.

4. Click on OK.

84 Finally, we want to knowthe total mass from thispart.

Click on the tab ‘Evaluate’ in the CommandManagerand next on ‘Mass Proper-ties’ .

In the pop-up menu youcan read a weight of 2040.57 grams. So this isanswer A from the assign-ment.

You can also see the Cen-ter of mass. This value is

displayed in an X-, Y- andZ-coordinate in relation tothe origin. The center of mass in the model itself isalso indicated.

What are the main fea-tures you have learnedin this tutorial?

As we have explained previously you did not learn a lot of new features inthis tutorial. You have seen a few smart gadgets, though, including:

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• Some of the options for the offset command.

• Some of the options for the Trim command.

• The automatic change between a line and an arc-shaped line whilecreating a sketch.

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