Step:9

Step: 10

Step:11

 we will get a result something like this.

And save it. ( Ctrl+S )

In this way we can place the locaters and can create parent & child relationship. Now we have left few more important component of this assembly that is piston. I have already done these things for you. In the next steps we will assemble that parts.

Step:12

Create a new Sense.

Save it with some appropriate name. I have given engine_mechanism.mb

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