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Originally Posted by Random Dude
Why a paper washer? The object is to make a connection with the board, not insulate from it.
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You connect the ring terminal to the board, metal to metal, and before you put the nut on, you put on a paper washer, then you put the nut on.
Remember when soldering to add a heat sync to the sensor so you do not damage it. I know that FIRST has suggested using a small piece of aluminum, but I found that I got better results using an alligator clip on the pins that I was going to solder. Also if you mess up and fill a hole with solder, and you still need to put a pin in it, just simply touch your iron to the solder until it turns liquid, and use a high pressure spray of some sort (air or endust) and the entire area is clean; just make sure that noone is opposite of you when doing this cause noone likes being sprayed with hot solder. Wicking could also work to clear out the holes, but it would take longer, and is not nearly as cool
Another note of advice, always solder from the bottom of the circuit board where the pins are, and if your solder job is good, it will be shiny, and if it is dull you gotta redo the joint cause you got a cold connection.