![]() ![]() I found at least a couple of places on the internet where a comparison of the actual temperature and the programmed temperature were made with a Fluke & Thermocouple. However, yesterday I decided that I wanted to compare that program with reality. I had switched to using the Lesnet profile and was having consistently good results. I wondered why he didnt use that profile? Lesnet shows a screenshot of a solder profile which is similar to the Kester data sheet. Here is scan of the printout of a blown up section from the datasheet with my handwritten notes from the Lesnet video (which I incorrectly denote as Sparkfun) First, I found the data sheet for the Kester solder paste that I have been using. As I have had a little bit of time the last few days, I decided to dig in. And, I don’t really believe in magic, but I didn’t have time to pursue a root cause. ![]() I have always had this bouncing around in the back of my head as a potential problem because I wasn’t SURE about the source of my original problem. A few weeks later, I dug around on the internet and decided to change to the Lesnet profile and things seemed to be working again. Then one day about a year ago, I got two boards in a row with horrible results which I attributed to the temperature profile. After I got the oven, I successfully built a series of Physics Lab boards with it. My decision was based almost completely on the nice youtube video that Ian Lesnet from Dangerous Prototypes posted about his results. About 2 years ago, I bought a Qinsi QS5100 reflow oven from China via.
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