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View Full Version : $3 - $25 Waterproofing for Electronics - UPDATED



UNGLEWD
12-20-2008, 11:51 AM
I've allways used baloons for this stuff just because I can never seem to find the right size tuperware style container....
I see other guys on here do this all the time...
Well Xmas shopping the other day I found these

The $3 Waterproofing
Starfrit Lock & Lock. Found available at Wallmart & Zellers for $2.35.
Just the right size for a Novak Rooster ESC (or similar), Receiver and even some leftover for a remote switch.
The lid locks down with a clamp on all 4 sides and has a rubber seal.
http://www.scalebuildersguild.com/articles/tutorials/waterproof/1.jpg

A shot with the lid off.
I used a 3" servo wire extension so the steering servo can plug in from outside the container.
This and my antena run out one side , motor, battery leads and switch out the other.
receiver & ESC are secured by servo tape.

After running the wires out I used a few scraps of lexan and shoe goo to seal up the wires/holes. I will test underwater for leaks when dry.
http://www.scalebuildersguild.com/articles/tutorials/waterproof/2.jpg

mrb
12-21-2008, 04:45 PM
thanks kev, I have seen one or two of these lately at christmas parties and wondered where the were found. thanks.
:beerchug:

Islander
12-22-2008, 06:04 PM
i've been using the "lock n lock" containers for awhile for a few different things. and they are the best tupperware i've found. they are a little more pricey than your average ziplock or glas brand, but they are worth every penny

madhatter
12-22-2008, 07:19 PM
Been using the same one for years now in Billy Bob and haven't had a problem yet.
http://i124.photobucket.com/albums/p21/demonictoys/billy%20bob/IMG_0160.jpg
And with a little rock guard and some paint, it doesn't look that bad either.
http://i124.photobucket.com/albums/p21/demonictoys/billy%20bob/IMG_0330.jpg

Islander
12-23-2008, 01:52 PM
goddang i love that truck madhatter. i think i'm going to do something similar with my next crawler. use a lock n lock and make it like a toolbox similar to yours.

great ideas guys

ecoli
12-24-2008, 03:14 PM
Just a question with waterproofing, I noticed in your pic Kev you have the rx antenna running out of the box. Is this necessary or is reception still pretty good if it's locked up in the box? Just seems like it would be one less hole to have to drill and silicone.

Great tip though, will pick some of these up the next time I'm at WalMart!

UNGLEWD
12-28-2008, 09:59 PM
Been using the same one for years now in Billy Bob and haven't had a problem yet.
And with a little rock guard and some paint, it doesn't look that bad either.


Like the idea of working with the container to make it look like a scale item instead of hiding it away like a dirty little secret!


I noticed in your pic Kev you have the rx antenna running out of the box. Is this necessary or is reception still pretty good if it's locked up in the box? Just seems like it would be one less hole to have to drill and silicone.


Yeah, i guess it's another hole to worry about.
Do you think it would change the TX/RX range at all? I'd like to keep it in the box if I could.

UNGLEWD
01-17-2009, 10:03 AM
An Update to the project...
After making the original and forgetting to add an extra servo lead it got me to thinking...
What happens if a component fails or this box needs to get moved to another truck?

Now all of my electronics boxes will be universal, should be able to change the ESC or Receiver without running wires or getting out the goop to waterproof!

It increases the cost of the project to around $20 - $25 depending on the quality of plugs and wires.
http://www.scalebuildersguild.com/articles/tutorials/waterproof/3.jpg

This time i drilled exact size holes and pushed the wires through, then soldered onthe outside leads.
For the ESC, battery power, motor lead & on/off switch.
For the Receiver, 3 servo leads and this time I'm trying the antena inside as suggested (since I only run DSM) At this point I did a quick sink test to make sure there's no leaks.
http://www.scalebuildersguild.com/articles/tutorials/waterproof/4.jpg

The ESC has the same leads soldered on as always so I can change it to any of my other backups if needed. Used the label maker to make tags for the servo leads to keep it less confusing in there when working on the trail.
http://www.scalebuildersguild.com/articles/tutorials/waterproof/5.jpg

For the final test I held it under water again to make sure it's still waterproof after handeling the wires!
http://www.scalebuildersguild.com/articles/tutorials/waterproof/6.jpg

rockrawler
01-17-2009, 10:14 AM
Very cool idea:drooler: I might have to look at doin this with my scaler

HeyOK
01-17-2009, 10:53 AM
Kevin, I have to caution you on something. You should use a female plug on your ESC output to avoid any risk of shorting. It would probably be very unlikely to happen, but this is the way that things are wired in the real world. Take a look at your AC power connections on the wall or on an extension cord. There is a female connector on the wall where the power comes out, otherwise, if there was a male connector on the wall, you might lean against it and get a shock! Same idea with your RC stuff. When you buy a battery with a connector already on it, it is a female connector. A female connector on the battery ensures that the battery output can't accidentally get shorted. Same goes with the ESC. A female connector on its output to make sure that it can't accidentally get a short. It probably means that you have to change the connectors around on all your motors with your new water proof system, but do it now before you make any more this way!

curly
01-17-2009, 03:42 PM
the extetion cord theory is a good example to follow kev you should apply what ok says to a tech setion so other can follow it
great explanation

krawldaddy
01-17-2009, 03:54 PM
this is a great tip, i never new that before. but big suprise... it makes perfect cent$ thanx heyok:beerchug:

HeyOK
01-17-2009, 04:38 PM
You guys are welcome!

plishp
10-27-2009, 06:35 PM
good ideas guys:biggthumpup:

Soul
03-24-2010, 08:12 AM
Something I've been wondering, is would this set up work for a brushless system (novak goat 2s)? I'm not sure about heat being an issue with the esc being sealed like that. Also, how safe is it to submerge a brushless motor? With my old brushed setup on the ford, I could drive completely submerged, and I'd like to be able to do the same with the new system. Thanks!

soleslaw
03-24-2010, 12:31 PM
This will work for a brushless as well. If you're speaking of a Goat esc getting too warm in there it won't. It'll be fine.

Watch out though, the goat is a sensored motor and if that little circuit gets water on it, it gets very unhappy and can also screw up the motor. Talon92 has been running his goat under water for a long time now and it just keeps going. :confused:


So really, you can't say that it will or won't work over an extended period of time. They're definitely not meant for it but hey, they work

Some people say sensorless only for under water but for some other people the Goat has worked great for them

xxgg
05-08-2010, 05:05 PM
Great tips people.

How do you go about mounting/securing the container to your vehicle?

crawlerpawl
06-21-2010, 05:17 PM
That's a good idea, I just wish there was a place to mount a box that size in my Crawler King.