Activity: Place the roller part in the assembly
Place the roller part
This activity:
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Uses the mate and axial align relationships to place the roller part
Launch the Activity: Place the roller part in the assembly.
Open the assembly file
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Open the assembly saved in the previous activity, if it is not already open.
Prepare to place the roller part
In the next few steps, place and position the roller part shown in the illustration.
For this part, use a mate relationship and an axial align relationship.
Also use an option available with the axial align relationship to eliminate the need for a third relationship.
After the support part is fully positioned in the assembly, edit the mate relationship to offset its position so it is positioned symmetrically between the two support parts.
Although the roller part could be properly positioned while applying the mate relationship, editing the relationship later makes it easier to see why it needs to be offset.
Place the roller part in the assembly
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Ensure that the Parts Library tab displays.
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In the file list area on the Parts Library tab, select the file named roller1.par, hold down the left mouse button, drag the file into the assembly window, then release the mouse button.
Select the face to mate on the roller part
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Select the planar face on the roller shown in the illustration.
Select the mating face on the support part
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Select the planar face on the support as shown.
Observe the result
The mate relationship repositions the roller part in the assembly.
Because only one assembly relationship is applied, the position of the roller part might be slightly different than the illustration.
Select the cylindrical axis to align on the roller part
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Select the cylindrical axis on the roller as shown.
Set the Lock Rotation option
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On the Assemble command bar, in the Placement group, set the Lock Rotation option.
Because this part is symmetric about a common axis, it makes no difference how the part is oriented about this axis in the assembly. In this situation, the Lock Rotation option is appropriate.
Select the cylindrical face on the support part
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Select the cylindrical face on the support as shown.
Observe the result
The roller part is now fully positioned in the assembly.
Save the assembly
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Click Save
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In the next few steps, reorient the view to look more closely at the result of the mate relationship.
![]() | Activity: Edit the offset value of the mate relationship![]() |
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