I've made it to the part of the build where I'm working on my elevator trim. I'm thinking about how do I route the wire for the trim servo. looking at it, I see a few problem I want to solve, and before I re-invent a method, I wanted to see if anyone else had some insight. I did a quick search and didn't find what I was looking for so here I am asking the question.
- Access to the trim servo in the future for service and or replacement.
- Potential collisions with the cable and the screw drive.
- Wire Chaffing concerns.
For the first point, if I leave enough wire to allow for removal and/or service, this wire is 'floating' around inside the elevator. I would also have to cut the wires if I ever want to replace it, or remove it.
For the second point, if any extra wire is left in the elevator, it could potentially move and catch in the screw drive and either chafe the wire rendering the servo inop or binding the servo itself causing potential problems. The screw drive uses the hole for the manual servo cable for clearance with the elevator spar.
For the last point, excess wire that is not secured can also chafe.
I measured the current draw of the servo and it's less than .25 amps. 0.12 to be precise, but that's with no load. So the power draw if very low. I haven't found what I actually want yet, but as an example, I'm thinking maybe something similar to this.
This would let me mount a connector in the spar below the manual trim cable hole that the servo could be plugged in to. This way, I can keep the amount of wire inside the elevator to a minimum, but still easily plug/unplug as necessary. This would also act as the grommet for where the wire passes through the the spar for edge protection.
I still need to do some looking for the connector I would want to use. Ideally I want to use a small molex type that will just 'snap' into the hole in the spare to make it easily removable if needed. I also want a 'snap' lock connector instead of screws. I would be concerned screws might vibrate loose. Snap locks are not likely to vibrate loose.
I did a quick search to see if anyone had done something similar, but I didn't find anything. Does anyone have any ideas before I re-invent the idea?