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Old 01-17-2007, 09:22 AM   #1
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Default Soldering ESC - need help

I have re-soldered the wires into my Novak ESC. For the third time now. And once on my sons, all in five months.

What the hey am I doing wrong?

Can anybody give me some tips on this?
The Novak brand wire shears just above the solder tabs. Soldering on the board scares the crud out of me.
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Old 01-17-2007, 10:09 AM   #2
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You didn't say which kind of Novak so I will assume it's a Novak GTX.

I re soldered my wires because I ditched the deans plugs for the motor. I direct solder now. You must have a hot iron. I use the Weller 80 watt iron. Yes, soldering near the circuit board scares the crap outta me also. Pre-tin you're wires before you want to solder them to the board. Be sure not to goop on the solder. Having an extra set up hands or a vise helps big time. Once you pre soldering youre wires, insert them thru the circuit board, then lay the iron on there and let them melt together. Don't over do it! Then gently pull on the wires to see if they will hold! Thats all there is to it. I've done this to both of my GTX's.....good luck
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Old 01-17-2007, 11:18 AM   #3
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It'a a GTS, however the soldering tabs are the same.
My wires have broken several times now.

I seem to do it the way you do.
Guess I'll keep trying.
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Old 01-17-2007, 08:07 PM   #4
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yes it is kinda of a pain to do. yes tin your wires and if you have a point tyoe tip for your iron use it. then hold the wire right up to the hole it goes in and from the under side heat it with the iron and the wire will fall right through the hole then let it cool before you release the wire.

why are your wires breaking so often? i have never ever had that happen and i have been using novak esc's for six years. if you esc is servo taped in and bolted down it should come out of the car way before you could even pull the wires apart.

also make sure you twist the wire before you tin them to get it as small as possible to fit into the holes better.

good luck i hope this helps. it should only take 10 to 15 secs of heat for each one don't heat the board longer than that. and thats even a bit long.
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Old 01-17-2007, 10:42 PM   #5
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Well if you solder it you need a fine tip on your iron. I tryed fixing mine and damaged the ESC. I just sent it in to Novak and got a new one. I run direct solder to my 4wd.
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Old 01-18-2007, 12:38 AM   #6
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to make a good joint, tin everything you're soldering. And when you solder make sure the iron is hot enough, if you're soldering esc wires, you should use at least a 65W iron. Heat the joint and apply solder to the joint, not to the iron. Once you're done the joint should be smooth and shiny, the whole process shouldn't take more than 3 seconds, if it takes too long to heat up the joint, you need a hotter iron.
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Old 01-18-2007, 12:42 AM   #7
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Also a good 65W iron often feels hotter than a cheap 80-100W iron. I've always used weller and ungar irons, they worked well and are not too expensive (you don't need top of the line model). Any well known brand for soldering electronics should be fine.
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Old 01-18-2007, 09:24 AM   #8
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[QUOTE=wingnutracing28]
why are your wires breaking so often?QUOTE]

That's what I wanted to know!
The wires are actually breaking just above the ESC. Looks like they rock back and forth and metal fatigue slowly breaks the wire down. The solder/ESC connection holds each time.

I have been looking at pictures of the new Tekin ESC, with their solder posts.
Looks like a serious design improvement.

However, Novak has such a good rep., not sure I will try another.
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Old 01-18-2007, 11:05 AM   #9
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what type of wire are you using? dont use a wire that has hard strands. the stuff that novak and deans puts out should never metal fatigue enough to snap.
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Old 01-18-2007, 11:38 AM   #10
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Hmmm, the only way I think that could be happening is if you over tin the wire. Also make sure you have enough slack in the wire for the batteries and the motor wires....
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