question about soldering and esc.
 

Hi, I have Xerun 150A esc and its in my savage truck powering the hpi tork 2200kv

I am wondering if i could soilder the female 6mm bullets connector directly to PCB board instead of wires.

is this possible?

It's probably possible, but be aware that the level of heat needed to properly solder the bullet to the PCB may damage nearby components. ESCs typically have a lot of copper which sucks heat aways, so you need high heat for a very short time.

don't do it too many amp i know i did what you want to do and fried my esc smoke every where that spot could not handle the current. it heated up and bent toward the another tap and just cooked itself.....

I think there might have been something else going on there that caused the failure.

Soldering bullets to the board is fine, as long as you heed what Brian said and do it quickly with a hot iron.

If you are going to attempt this I would recommend a soldering "gun" rather than an iron. They are higher wattage and can heat up the area around the bullet connector faster than the copper layers in the PCB can wick it away. I used a Craftsman 230W gun for mine... :whistle:

You will need a bullet connector with a short, round peg coming out of the bottom, like the V1 MMM had soldered to its board. Reason being is that the bullet needs to make contact with all the layers of copper in the PCB through that hole in the board the same way the wire did. Maybe you can leave a short length of wire (1/4"?) on the board, place the bullet connector over it, and solder it that way. Then pretty much any bullet would work.

Oh- Wear an oven mitt so you can hold the bullet against the PCB while heating it. And be very careful not to slip with the soldering gun. It gets hot... :whistle:

Just for clarification, make sure you get the gun hot Before you apply it to the joint.

Jeff