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Step 2Prep the Servos and Dry Fit
In this step we will mount some screws to the servos to make it easier to figure out where to drill the mounting holes in the brackets and enclosure.
Mount the rubber shock absorbers that come with the servo into the 4 mounting holes in the servo.
Use 4 x 4-40 x 3/4" machine screws and 8 x 4-40 nuts for this step. Put a nut onto each screw and thread it as far as you can. Mount the screws in the shock absorbers so that the threaded end is sticking out on the same side as the servo shaft. Thread another nut onto the screw to hold it in the shock absorber.
Repeat with the other servo.
Now fit the large servo to the longer bracket. The 1/2" hole should fit around the shaft collar and the metal should be flush with the servo body. You will probably have to adjust the nuts on the 4-40 screws so that the metal will sit flush, just be sure that the screws are still in contact with the metal of the bracket.
Position the servo so that the body points towards the center of the bracket and so that the short side of the servo body is parallel with the bend line nearest to it.
Mark the mounting holes by tracing around as much of each of the 4-40 screws as you can.
Remove the servo.
Drill 7/64" holes at the center of the locations you marked. You will have to guess a little bit at where that center is, but as long as you are very close everything will be fine.
Dry fit again. Place the servo in the 1/2" hole and see if the screws will go through the holes you just drilled. If not you can "adjust" the holes as needed (as in redrill them).
Mount the rubber shock absorbers that come with the servo into the 4 mounting holes in the servo.
Use 4 x 4-40 x 3/4" machine screws and 8 x 4-40 nuts for this step. Put a nut onto each screw and thread it as far as you can. Mount the screws in the shock absorbers so that the threaded end is sticking out on the same side as the servo shaft. Thread another nut onto the screw to hold it in the shock absorber.
Repeat with the other servo.
Now fit the large servo to the longer bracket. The 1/2" hole should fit around the shaft collar and the metal should be flush with the servo body. You will probably have to adjust the nuts on the 4-40 screws so that the metal will sit flush, just be sure that the screws are still in contact with the metal of the bracket.
Position the servo so that the body points towards the center of the bracket and so that the short side of the servo body is parallel with the bend line nearest to it.
Mark the mounting holes by tracing around as much of each of the 4-40 screws as you can.
Remove the servo.
Drill 7/64" holes at the center of the locations you marked. You will have to guess a little bit at where that center is, but as long as you are very close everything will be fine.
Dry fit again. Place the servo in the 1/2" hole and see if the screws will go through the holes you just drilled. If not you can "adjust" the holes as needed (as in redrill them).
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