Ws14_SolidModel_plastichouse.pdf

WS14-1PAT302, Workshop 14, December 2004Copyright2004 MSC.Software Corporation

WORKSHOP 14

SOLID MODELING OF PLASTIC HOUSING


SOLID MODELINGPLASTIC HOUSING

Problem description The plastic housing shown contains an indented area at the top

face, several fillets, and mounting holes. It has constant thickness. Construct a geometry model of the part shown.

Workshop objectives Practice solid geometry creation and Boolean operations.


1.00

0.50

r = .0625

0.20

0.20

0.60

0.60

0.800.20

0.20

1.00

r = 0.1

All wall thicknesses are 0.01

Model dimensions



Suggested exercise steps

Create a newdatabase and createthe first block

Geometry: Create /Solid / Primitive.

Enter the followingdimensions:X Length List 1.0Y Length List 1.0Z Length List 0.5

Click on Apply



Suggested exercise steps (continued)

Create a smallerprimitive block, tobe subtracted fromthe larger block

Geometry: Create /Solid / Primitive.

Enter the followingdimensions:X Length List 0.6Y Length List 0.8Z Length List 0.5

Under the Base OriginPoint List, enter [0.2 00.25]

Click on Apply



Suggested exercise steps (continued)

Use the Booleanoperation to subractthe smaller block fromthe larger block

Geometry: Edit / Solid /Boolean.

Click on the Subtracticon.

Select the larger solidas the Target Solid, andthe smaller solid for theSubtracting Solid List.

Click on Apply



Add fillets to the newsolid

Geometry: Edit / Solid /Edge Blend.

Enter 0.1 as the blendradius.

Under Solid Edge Listselect the four edgesas indicated.

Click on Apply

Select these four edges

SOLID MODELINGPLASTIC HOUSING Suggested exercise steps (continued)


Use the shell tool to hollowout the part to the desiredwall thickness

Geometry: Edit / Solid / Shell.

Under Thickness enter 0.01.

Under Solid Face List selectthe front face of the solid.

Click on Apply



Create four primitivecylinders, to besubtracted from the solidto create the mountingholes

Geometry: Create / Solid /Primitive.

Select the Cylinder icon.

Enter 0.25 and 0.0625under Height List andRadius List, respectively.

Under Base Center PointList enter the following:[0.2 0.2 -0.125],[0.2 0.8 -0.125],[0.8 0.2 -0.125], and[0.8 0.8 -0.125]

Click on Apply



Use the Boolean tool tosubtract the cylindersfrom the solid

Geometry: Edit / Solid /Boolean.

Click on the Subtract icon.

Under Target Solid selectthe solid created from theblock, and underSubtracting Solid List selectthe four cylinders.

Click on Apply



Suggested exercise steps (continued) Once completed, the model should resemble the following:

There are several approaches that can be used to model thispart.


Documents

Ws14_SolidModel_plastichouse.pdf