Can someone help me put this together?

This is in theory right now, but here is what I am thinking:

I have a circuit that gets power by a triggerable event - the power
lasts for 60 seconds then cuts off.

When power is supplied, it activates a motor.

When the motor completes 1 revolution, it hits a switch (SW1).

SW1, when closed (hit my the motor) flips a relay (R1) which takes away
the power to the motor and remains in that position until the power is
cut to the circuit.

When the power to the circuit is cut, R1 flips back.

This way, I can shut the motor off after completing one revolution
regardless of how long the power to the circuit is applied. Once the
power to the circuit is cut, R1 flips back.

This seems to me like it should work, but I cannot for the life of me
figure a schematic to wire it up.

Any ideas?

Thanks

.

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