![]() Otherwise, they can only notify the supplier of the erroneous software.Īnd what does it bring to the receivers of Gerber files? When there is discussion over the interpretation of the file, there is now an official arbiter of the syntax. If flawed Gerbers are generated, they can see if there are Gerber output settings which, properly set, creates proper files. Users of software generating Gerber files have less control. This will benefit the PCB industry as a whole and allow the industry to move forward toward easier and safer data exchange. ![]() Generating files with syntax errors puts your users at an easily avoidable risk. The development effort is probably modest. We call on responsible developers of Gerber output software to check their output and only output perfectly valid files. ![]() The formal syntax checker is the only public software doing a thorough syntax check. Files with syntax errors are always risky. Reverse engineering is outside any specification, it is but a grand word for guessing. There is no guarantee that other software will reverse engineer in the same way. This is risky, because on syntax errors viewers try to recover the intended image through reverse engineering. Liberal viewers, because these were the only ones available. The formal syntax checker is very conservative and will report any syntax error.īefore the advent of the formal syntax checker, the only means for senders to check files was multiple viewers. The visualizer is very liberal and accepts almost anything vaguely following the specification. The checker is very conservative and reports any imperfection. The Reference Gerber Viewer now offers the best of both worlds. This is neatly expressed in Postel's law: “Be conservative in what you send, be liberal in what you accept" ![]() For senders, the viewer must be conservative and notice any deviation from the specification. Senders know the intended image but want to be sure the file is correct. Senders of Gerber files, who want to check the files before they send them. For receivers, the viewer must be liberal and try to reverse engineer the intended image on invalid Gerber files. Receivers need to view the intended image, even for files with syntax errors. Receivers of Gerber files, who want to use the files they have received. There are two types of users of a Gerber viewer. The formal syntax checker is a wholly new capability. A brand new formal syntax checker was added. ![]() GHENT, BELGIUM - Ucamco is pleased to announce a new version of the online Reference Gerber Viewer. ![]()
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