Báo Cáo Design and build an automatic pcb drilling machine

ABSTRACT
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Creating holes on single or multilayer printed circuit boards (PCBs) is an important stage in
electronic production. Holes of different sizes and at a large number of positions (up to thousands)
must be drilled with high precision for manual or automatic insertion of various electronic devices and
components. For this purpose, we have designed and built an automatic PCB drilling machine. The
PCB pattern of the circuit schematic diagram is drawn on the monitor screen, with the help of a
software such as Orcad. This pattern layout is printed out to make the PCB, and it’s just from this
layout the computer will control the drilling automatically. At a time the system can make holes on
several boards stacked together. There are many foreign made PCB drilling machines of different
quality that we could have imported, but because of their high price and, moreover, we wanted to build
a robust machine with a large span (can accommodate boards up to 50 cm in width) for making holes,
or making printed boards (board etching), and as a demonstrating CNC machine (by changing
corresponding working head). The project has been completed and put in use (making small scale
PCBs and teaching).