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Step 6Mounting the muscle sensors and power supply board
Now it is time to mount your sensors using the 4-40 screws and nuts.
Grab three of your sensors and the power supply board and put a screw into each mounting hole. Thread a nut on each screw but leave it slightly loose. These nuts will be used as standoffs.
Next, place each sensor's mounting screw into each corresponding mounting hole. Remember to keep the muscle sensors' female headers on the same side as the shelf's offset. Thread another nut onto each screw until they are nice and tight. Tighten more with a screw driver and a wrench, holding the second nut secure.
Next, follow this same process for the power supply board. Make sure the power jack is facing the front side of the shelf.
For the last muscle sensor, insert a screw up through the bottom of the enclosure and secure with a nut. Then slide the muscle sensor down the support column and insert the screw into the sensor's mounting hole and secure with a nut.
Check to make sure you can fit the female housing through the gap between the sensors and down into the rectangular cutout and onto the male headers of the sensor below. If the gap is too tight, remove one of the top sensors and sand one of its mounting holes on the shelf until the gap is wide enough.
For the remainder of these instructions we're going to refer to the sensors as follows:
Sensor 1 = Closest to Power Supply
Sensor 2 = Middle
Sensor 3 = End
Sensor 4 = Bottom
Grab three of your sensors and the power supply board and put a screw into each mounting hole. Thread a nut on each screw but leave it slightly loose. These nuts will be used as standoffs.
Next, place each sensor's mounting screw into each corresponding mounting hole. Remember to keep the muscle sensors' female headers on the same side as the shelf's offset. Thread another nut onto each screw until they are nice and tight. Tighten more with a screw driver and a wrench, holding the second nut secure.
Next, follow this same process for the power supply board. Make sure the power jack is facing the front side of the shelf.
For the last muscle sensor, insert a screw up through the bottom of the enclosure and secure with a nut. Then slide the muscle sensor down the support column and insert the screw into the sensor's mounting hole and secure with a nut.
Check to make sure you can fit the female housing through the gap between the sensors and down into the rectangular cutout and onto the male headers of the sensor below. If the gap is too tight, remove one of the top sensors and sand one of its mounting holes on the shelf until the gap is wide enough.
For the remainder of these instructions we're going to refer to the sensors as follows:
Sensor 1 = Closest to Power Supply
Sensor 2 = Middle
Sensor 3 = End
Sensor 4 = Bottom
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