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Author Topic: Waterproof / Water resistant kit suggestions  (Read 5599 times)

Adder

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Waterproof / Water resistant kit suggestions
« on: July 28, 2015, 12:44:49 PM »
Following all the rain at meeting so far this year, between us we've probably got a good idea of what's properly waterproof, what's water (splash) resistant and what simply doesn't work well in the wet.

Starter for ten in that case, please add your own experiences to the list!

Waterproof (heavy rain, standing water):

  MRT ESC and brushed motors
  Mtroniks brushed ESC
  Mtroniks sensorless (3-wire) brushless
  Castle Creations Sidewinder V3 (Superbike)
  Hobbywing EZrun 35A (Superbike)
  Mtroniks MX-C 2 sensored BL (10.5 motor limit)

  Spektrum Marine rx with flying lead connectors
 

Water resistant (light rain or wet track, best to avoid avoid deep puddles)

  Turnigy 70A 'waterproof' combo (Sensored, so watch out for water in the motor. Mixed feedback in very wet conditions!)



Use at your own risk only:

  Most sensored (3-wire + sensor lead) brushless ESC. The sensor lead connectors, sensor board in motor and 'smart' programming on/off switch are particularly vulnerable




Tips and tricks:

Most receivers need additional protection. If using a balloon or blu-tack to seal the case, make sure the openings point downwards.

Most standard servos are splashproof but not waterproof, so will be OK if in a protected position but may fail if subject to spray from the wheels or get dunked.

Keep the worst of the water out by fitting splash guards or covers to avoid direct water ingress.

Improve water protection of radio gear by spraying circuit boards with silicone grease, and using a thin smear of silicone RTV on all case joints and cable exit grommets (including between the individual wires) when re-assembling. On servos ensure the output bearing is well greased.

« Last Edit: July 31, 2015, 01:39:10 PM by Adder »
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Scott Adderson
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Steve Leake

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Re: Waterproof / Water resistant kit suggestions
« Reply #1 on: July 28, 2015, 01:27:57 PM »
For anyone using Spektrum kit, their waterproof boat receivers are brilliant. They are sealed and you connect through the fly leads. Fit and forget and no messing around with balloons etc.
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Andy Carless

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Re: Waterproof / Water resistant kit suggestions
« Reply #2 on: July 28, 2015, 02:18:33 PM »
Scott

My one of these:

Water resistant (light rain or wet track, avoid deep puddles)

  Turnigy 70A 'waterproof' combo


lasted ok although I didn't really get to use it through too many deep puddles. The problem I had was water in the motor, that was the noise it made in the last final off the line. I tried it last week and it works fine now, so the motor has dried out. I did put blue-tak on the end bell to cover the sensor lead etc, so that was pretty sealed. I just think it got inside the motor maybe.

Graham's Turnigy went pop, and I think Alex's did. JJ's seemed to have survived.

I'm going to continue to run mine, as Mendip was pretty extreme tbh, and I reckon most of what we get is showers and wet grass.

I did swap it out for the last two finals with the G2 motor and that cheap 25 MTronikes that came with the Sidecar - that went through all the puddles fine and worked well. Just doesn't seem quiet as quick as the brushless set up.

Cheers Andy
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Steve Leake

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Re: Waterproof / Water resistant kit suggestions
« Reply #3 on: July 28, 2015, 02:59:37 PM »
JV has the latest sensored Mtroniks and that seemed to work well and survive.
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Matt

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Re: Waterproof / Water resistant kit suggestions
« Reply #4 on: July 28, 2015, 05:12:46 PM »
I would definately rate the Castle Creations Sidewinder V3 that I ran at Mendip as 'Waterproof (heavy rain, standing water)'. Had no problems with it during the meeting, just gave it a rinse under the tap to clean it afterwards. I've not run a 17.5 on it so can't comment on its use for stock.
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ScaryFast

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Re: Waterproof / Water resistant kit suggestions
« Reply #5 on: July 29, 2015, 06:14:05 PM »
I was using a Hobbywing EZrun 35A unit.  Been very reliable and very smooth power delivery but have never run it on 17.5 and it's not blinky so no good for stock
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JJ

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Re: Waterproof / Water resistant kit suggestions
« Reply #6 on: July 30, 2015, 12:58:07 PM »
Great info on waterproofing !!

The Turnigy 70A was OK for me at Mendip, but I bailed out of running
in the electric finals. No time to change over to brushed and felt the conditions were asking a lot from a budget BL speedo.

I did peek inside my Turnigy and the lower section was filled with resin, so assumed the speedo itself would be OK.

Alex you say the water got inside between the PCBs, I cant even see the PCBs in mine ??

The rubber boot covering the sensor cable entry seems a bit weak on the Turnigy, easy to come away and leave a gap. Guess that is what happened to Alex's speedo. Also think the motor needs waterproofing, both ends of the can to be sure. That is difficult on many BL motors.

The MRT and Mtroniks are potted with resin so normally fully waterproof, but take care where the soft silicon wires enter, movement creates a gap for the water to get to the internals, and if left will corrode the electronics, so suggest a spell in the airing cupboard to dry out after wet running.

I was amazed at everyone carring on and having so much fun at Mendip, despite the rain.

Lets hope Adur will be a bit drier !!   
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Graham Clarke

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Re: Waterproof / Water resistant kit suggestions
« Reply #7 on: July 30, 2015, 05:57:34 PM »
1 of my 70anp turnigys went bang , not to happy,

How do you set the end points on it ( cant remember ) can anyone help
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Ta Graham
its quicker on two wheels with a FF01-16 NITRO

Andy Carless

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Re: Waterproof / Water resistant kit suggestions
« Reply #8 on: July 30, 2015, 10:48:56 PM »
Hi Graham

I've emailed you the instructions :-)

Cheers Andy
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Graham Clarke

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Re: Waterproof / Water resistant kit suggestions
« Reply #9 on: July 30, 2015, 11:48:55 PM »
Thank you Andy
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Ta Graham
its quicker on two wheels with a FF01-16 NITRO

Adder

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Re: Waterproof / Water resistant kit suggestions
« Reply #10 on: July 31, 2015, 01:38:06 PM »
My one of these:

Water resistant (light rain or wet track, avoid deep puddles)

  Turnigy 70A 'waterproof' combo


lasted ok although I didn't really get to use it through too many deep puddles. The problem I had was water in the motor, that was the noise it made in the last final off the line. I tried it last week and it works fine now, so the motor has dried out. I did put blue-tak on the end bell to cover the sensor lead etc, so that was pretty sealed. I just think it got inside the motor maybe.

Do these ESC's have a sensorless mode?
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Scott Adderson
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Andy Carless

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Re: Waterproof / Water resistant kit suggestions
« Reply #11 on: July 31, 2015, 03:24:45 PM »
Hi Scott

I don't think they do tbh, I seem to think only sensored....

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Awynn

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Re: Waterproof / Water resistant kit suggestions
« Reply #12 on: July 31, 2015, 11:55:41 PM »
They won't run sensorless at all.
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