Last Updated : 14 February, 2007
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The following question came from Antonio


How do you adhere your servos in a Monarch?

I have been using a dab of silicone, but after hearing horror stories regarding wire corrosion, I am looking for alternatives. Should I be using the Scotch sticky pads provided? I was not sure if they were sticky enough for servos...

From : Don Stackhouse

I think Joe uses silicone, but there is an electrical grade that doesn't give off acetic acid during cure. It does give off some water during cure, and it takes a bit longer, but nothing's perfect I guess. In any case, it's better than the regular stuff with regards to corrosion.

The sticky pads provided are there for mounting servos, and I personally have never had a problem with them. One trick that seems to help is to apply the pad to the servo, then put 4 small drops of medium cyano-acrylate adhesive on the side of the pad that goes against the fuselage, one drop in each corner of the pad. Just make sure each drop is small enough, and far enough from the edge of the pad that it doesn't squeeze out later and bond the servo directly to the fuselage! Now stick the servo in place. The smooth surface of the servo will stick to the tape quite strongly, while the c/a will guarantee a good bond between the tape and the inside of the fuselage. It will also squeeze out flat enough that you can peel the servo out later and not have any significant problems with glue lumps on the inside wall of the fuselage.

Another variation on this is to tape over the case of the servo with masking tape, then c/a the servo in place! Quick and easy, but with the brands of tape I've tried, I've had problems with the tape tearing through the middle of its thickness, allowing the servo to break free. Of course, in a crash this might actually be helpful. All I can say is try it, but whatch it carefully until you have lots of experience with this option.

Don Stackhouse @ DJ Aerotech



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