quick servo question

[tommyboyblitz]

are they water proof? and whats the best way to water proofthem if there not?

 

[olds97_lss]

You can buy some that are more waterproof than others. Traxxas sells some now. They have a blue case. If yours are traxxas servos without the blue case, then they aren't waterproof.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTKL0&P=7
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXVEP2&P=M

There are ways to make them water resistant, but your better off just buying ones that are made that way.

I buy hitec 985MG servos as they use o-rings on all the screws, case halves and output shaft.

I've tried waterproofing many with limited success. They all eventually get water in them somehow. Usually through the output shaft.

 

[tommyboyblitz]

I've water proofed the reciever with hot glue, litrially caked it in the stuff, as I've had a few that have died due to water.

haven't had any problems with the standard 2055 servo's until last night, so I've just caked a servo in hot glue as well, but can't do that to the ou put shaft though. i haven't got the money to buy other servo's really, got loads of spares so its not rewally a big deal.

but when the servo died last nite it locked the throttle full open and hit a tree span and busted 1 front and 1 rear wishbone.

hopefully this hot glue will work well, works fine on the reciever, just a pain in the arse when i have to change servo's etc.

cheers

 

[olds97_lss]

Well, really, all you need to do is put some RTV on the seams of the servo and around the plug/pigtail wire on the servo. Then find a o-ring that will fit under the horn, then sand the horn a bit so it just gently squeezes the o-ring. It's a good idea to lube the o-ring with associated green slime so it doesn't bunch up.

Or, you can buy plasti-dip and dunk your servo in it. This will take care of the case/pigtail, but you will still need the o-ring under the horn.

Here you can easily see the o-ring:

Once the plasti-dip dries, you just cut around the output shaft and mounting tabs, then peal it off.

I used the dip kind, but I watered it down about 30% with mineral spirits as it was way too thick and bunched up in places on the first one I did. They also make a spray kind.

This method lasted the longest for me, but eventually, the servo still got water in it, I'm guessing through the horn area since that is where the water was most noticed. Then it ran down into the motor.

Or, you can try a balloon, but I find that they tear easily when bashing.

 

[tommyboyblitz]

that looks well good, and pretty much just done the same to mu servo's with hot glue, aint as neat as those though, but still cover all the seals etc.

i guess can't really get 100% water proof withot buying waterproof servo's.

cheers

 

[pitbull14218]

yeah, i still need to do this with mine, especially for winter useage