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[tony23]

Is it possible to buy water proof servos I was told of a futaba servo but can only find a helecoptor 'dustproof' casing type servo?

[ministeve]

a bit of self amalgamating tape around the bottom works well unless the top of the servo is exposed i know of nothing that would stop water ingress and still allow the servo to move
what are you useing the servo in

[knoby]

traxxas make waterproof servos in 3 different sizes, have a look on ebay, they are around £13. I have used a micro 1 as a steering servo in a eco 3 fast electric, but did find it a little slow for that. I'm not sure how waterproof they are, I suspect that water would seep through the output shaft if it was fully submerged for any length of time, but the fast electric has a fair amount of water slopping around in it at times & the servo never failed.

cheers Glenn

[omra85]

Futaba have just brought out a new one - S3014 - claimed to be waterproof
http://www.clevelandmodels.co.uk/index.php?cPath=33&osCsid=0ca835b43298dcfd0ecff894f3395398

Danny

[tony23]

a bit of self amalgamating tape around the bottom works well unless the top of the servo is exposed i know of nothing that would stop water ingress and still allow the servo to move
what are you using the servo in

I have an IOM yacht which I sail in all conditions sometimes in a gale and it's not unusual for the boat to nose dive into the water on the down wind leg with water completely covering the boat so there will always be a little water in the hull after sailing but I have just had a brand new high torque servo (£38) die on me and it looks like water has crept through the casing joint or the screw heads/holes into the circut board. I have smeared the joints with some Vaseline but it looks like it got in somewhere I know a servo cannot be totally water proof but one that's been built to with stand some water will go a long way.

[w3bby]

Waterproof your servos with Plasti Dip http://www.plastidip.co.uk/index2.cfm?page=products&prodId=1 and an O-ring under the arm.
Method shown here http://www.societyofrobots.com/actuators_waterproof_servo.shtml (scroll down a bit...).

Used this on an exposed servo in an open waterjet hull without any problems.

It comes off easily if you need to get into the servo at a later date.

[tony23]

I found that site on YouTube a couple of nights ago and have tried it using a clear high modules silicon sealant on a new servo, I took the yacht out today for a sail and it's works perfectly although I yet to find out if any damp gets in.

I have also ordered a Futaba S3014 to try out.

With its 6.5Kg/cm torque, high speed and ball bearing supported output, this standard size, water-resistant servo is ideal for a variety of boat and yacht applications.

[andyn]

The 3014 has been out ages. No servo is ever going to be completely waterproof, it's got holes in it.....

What I would do is to fill it with Dow Corning 7 silicon grease.