PCB how to solve the two drill copper wire?
Hood: This is good. Use sanding machine and sanding.Leakage drill: This is mainly the operator to be careful, the machine settings can not be changed
Jack: for example, some 0.2 of the holes drilled with air holes, but also can be used in washing machine after plating copper plate to prevent the hole without.
Hole deviation: be sure to align the aluminum plate when you pin it. Familiar with machine performance, choose the best location of machine, locate hole. The pin size of the locating hole must not be used wrong. The inner offset may also be press fit. When pressing and shooting, it is possible to bias the positioning hole.
Kong Cu: look at your drill, the number of grinding is best to control the good (scrapped on the scrap) drilling, turn the best lower limit. And according to the number of your stack plate.
With the new nozzle, improve the rig speed, slowly under the knife (very important), can try a few pieces, found in the batch drilling drill for flash or a grinding mill
