HiModel 4s-8s 200 amp esc

[sailr]

Sorry if I misunderstood but I thought I explained your claim of a bogus tracking number? It was probably what the independent shipping broker gave them and then later gave them a different one. I have had it happen to me more than once. It's not typical but not unusual either.

Swang hobby nor any other business in China has ANY control over the shipping and tracking numbers. They are at the mercy of the brokers. The Chinese post will not work with anyone except licensed brokers. I'm not trying to defend Swang Hobby but you are being a bit hard on them for something that was out of their control. I would say the same regardless of who the vendor was. I have been an importer from China for a number of years. Please believe me, shipping is a tough situation for everyone, including the Chinese vendor. The exception, as I said above, is Hong Kong. Totally different animal. That's why HobbyCity set up shop in Hong Kong and sells everything made on the mainland!

i have to disagree with your comments as i didnt excpect it to arrive in 4 days, but 4 days after i recieved a tracking number that couldnt be found which turned out to be bogues.
i have never voiced my opinion before on any forums but when i saw someone was looking at a swang hobby product i thought i would voice my opinion.
if people want to buy from them good luck as for myself i wouldnt touch them if they were they only hobby supplier in the world

[ksm2001]

What is the wire thickness on the esc wires? -need to order some of same gauge as the battery leads on esc.

Esc wires on the Himodel 200 amp come with 12 gauge, I replaced mine with 10 gauge.

Ken

[FastVee]

Thanks ken! (and check your delta thread too ,asked some q´s there)

Is there any need to use thicker wires? -the stock ones are rated over 200A right?

Pate

[FastVee]

I found 2 threads of waterproofing this esc, but I did not found very much helpful info.




1. I will use the etti cooling plate.

2.I have that 3m 270 epoxy.

3.I have the thermal grease (what Steven sells)

-How should I do this?

How will that cooling fin/plate come off? -is it really just prying and pulling?(and breaking the esc at the same time )

Do I first istall that etti cooling plate, then brush thin layer of epoxy everywhere, or do I first waterproof it and then add cooling?

Is it better to dunk it in epoxy or just brush a thin layer on it?

-but how can it be 100% waterproof if the esc is not totally inside an epoxy block?



(Pic from this thread http://forums.offshoreelectrics.com/...ad.php?p=32945 )

I do have 99% water free hull...but it only takes a drop of water ...


I dont have that esc here yet, but it was shipped 2 days ago...

[domwilson]

What I did was:
1.) Removed the shrink wrap.
2.) Removed the heatsink. Save the thermal tape. It comes off pretty easily.
3.) Coat the ESC thoroughly with the DP270 epoxy.
4.) Once cured, block sand the tops of the FET's to get a smooth flat epoxy free surface.
5.) Apply the thermal tape to the cooling plate contact area.
6.) Apply a even layer of thermal paste to the FET's
7.) Assemble and heatshink into place.

That should do it.
Others may have some suggestions.

[domwilson]

Forgot to mention, while the epoxy is curing. Go kick the neighbor's cat.

[FastVee]

Forgot to mention, while the epoxy is curing. Go kick the neighbor's cat.

I did that twice earlier today, so do I must do it all over again? -the poor little thing is so scared of me now that I dont think I can get close enough anymore.
(if you see some fluffy cat that has size 13 nike in his a** , please get that shoe back)



And does thoroughly mean that it should be done like this?


or brush it well all over? (I only ordered one pack of that epoxy from Steven )

[domwilson]

I brushed mine on till it was completely covered and no entrance way for water. This includes between and behind the caps. It looks like a epoxy coated brick, sort of.

[sailr]

I hate to be stupid, but I see everybody using that GREY stuff around mounts, stuffing boxes, etc. Is it JB Weld? or? It always seems to flow out so nice.

[domwilson]

Yes. That is JB weld.

[FastVee]

Cute DHL girl just delivered my esc!



Thanks to Dom for pics and thoughts, but has any body else have different thoughts?

Still thinking that dunking it would yell waterproof and brushing would make it water resistant?Most of the temps would be on the fets so the rest should be fine inside epoxy block


So come on, what have rest of you guys done and has it worked?

(wont laugh if you have fried it, just want to make this work)

[domwilson]

Don't know if you can call it brushing or dunking. I used a popsicle stick to make sure it was completely covered and filled like a brick.

[FastVee]

Ok, so I guess it does not matter then witch way I do it

the esc has worked nice and for how long Dom? ( did you got it wet once or twice?)

Is that epoxy 1.7oz /50ml? -will one be enough or should I order more?

You have kept the 12awg wires? -2 pairs?




-Pate

[domwilson]

Oh I got it wet...very wet. I had mine drip dry from applying the epoxy over night by hanging it from the faucet in the kitchen sink on to a paper plate. Next morning, got up, cleaned the sink with this thing dangling from the faucet. Water running over it. Yes I was tired!!! Dryed it off with a paper towel. Then tested boat in the pool. Worked perfect. This was more water than it would see in a boat. So if water under pressure can't harm it, I don't think a few drops in the hull will.

[domwilson]

Ok, so I guess it does not matter then witch way I do it

the esc has worked nice and for how long Dom? ( did you got it wet once or twice?)

Is that epoxy 1.7oz /50ml? -will one be enough or should I order more?

You have kept the 12awg wires? -2 pairs?




-Pate

That should be enough epoxy. I kept the 12 awg wire as I don't think the amp draw is that high. I currently don't own a Eagle tree. Was running a hex 120 before.