Lehner 1930 De-soldered Itself??

[jhautz]

I didnt think I had any issue with the solder joint. I had the sloder flowing very well on the surface of the trace. It was one continuous bead. I wish I would have taken a picture of it after it quit on me. It looked like it flowed perfectly to break the connection on the trace. It was claner than the ones I broke on purpose. I just resoldered it and this time used alot more solder. Its just a taller bead that I used this time. It must be that there just wasnt enough cross section to handle the current and it heated locally. Its the only thing I can think of.

Edit: It wasnt a cold solder joint. If you saw it in person you would understand. I dont think it wouldbe possible to get it to bridge the gap and be a cold solder joint. Its not like a little bead sitting on there. The entire trace on the back of the motor is completely covered in a heavy bead of sloder. I can tak a picture of it later tonight if you want to see what it looks like now.

Brian. I was able to heat the solder to the point here it flowed on the trace when I tipped the motor side to side. Getting it hot ebought wasnt really a problem. I used a 50W Hakko soldering station jacked up all the way to 900 degrees.