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After completing the wiring and testing it,installing new fonts,playing with it all day, I decided to grind the edges of the chassis a little as it was too sharp and sometimes pinched the other wires.I did grind a little close to the wires,but I know for a fact that my fingers were between the board and the edge. After the grind,turned it on again,just to be safe,it worked and went on to complete it and send it.After I came home from work,decided to play with it again for the last time and to my surprise, it did not turn on. Checked all the wires and noticed the negative from the battery was a little wobbly. Re-did the joint,but I think I kept the tip of the gun to long and I am afraid that I might have burned the connection. Any thoughts?