Zoom to area and double-click the arc below the one set to a radius of 40.
In the PropertyManager under Parameters,
type 40 for Radius
, and then click 
.
Double-click one of the 20 mm arcs, change the
radius to 40 mm, and then click .
Repeat step 3 for the second arc.
Click the block confirmation corner 
to close the block.
Click Zoom to
Fit 
(View
toolbar).
In the FeatureManager design tree:
Right-click upper_arm-1 and select Save Block.
Click Save and Yes to the prompt to replace the existing block.
Save the part and open mycrane.sldprt.
Upper Arm includes the changes you made to upper_arm.sldblk.
You can also edit a block document, return
to the layout sketch that includes the block that was linked to file,
and select Link to file after
editing the block document.
