1 CAM350 Tutorial - Reverse Engineering a PCB Written by Advanced CAM Technology, and modified by Michael Raynes, Aspect Communications Getting 'legacy' designs, where you only have Gerber files, back into your CAD system - intelligently This is the process of starting with Gerber files then adding information to the database such that an intelligent database can be brought back to a CAD system. Before starting make sure that you know what each component's reference designator is. If the silkscreen layer is incomplete, then get a fabrication drawing, BOM or some other method to determine each reference designator. If all reference designator are not known, you can make them up as you go. First, figure out what kind of Gerber data you have. 274D data does not need any manipulation and can be used immediately (skip this section and go to Reverse Engineering Procedure). ![]() Aug 2, 2012 - CAM350 is a multi-use tool for printed circuit board design and fabrication. This tutorial will focus on the first of these applications – using. Tag:CAM350 V11 tutorial CAM350 V11 training blueprint v4.0 Description CAM350 for PCB Designers and Electrical Engineers CAM350 will import your CAD database or you can choose to import Gerber files. 274X data requires that the different electronic layers be combined to create a single copper layer. See the following steps: 1. This is not a necessary step, but I have found that thermals will be generated better in PADs, and pad stacks will be created cleaner, if the thermals are now removed from planes in the Gerber data. Unfortunately there is no easy way and this must be done manually. Copy pads to a new layer (use this step only if the new layers are to be a surface layer?). RocketDock Docklets 5 Things Travel With Kids Edinburgh Essie Trek Britain Scotland Places Ive Been scotland and Edimburgh seen from an english point of view; differences and quirky things. Rocketdock docklets downloads. If you’re unfamiliar with RocketDock, it is a dock that can be placed on any side of the screen and contains shortcuts to applications and folders. Like ObjectDock, RocketDock also supports docklets, which are small applications that run within the dock. In addition, RocketDock is compatible with Mobydock, Y'z Dock and ObjectDock skins, in addition, the developers tell you to send them a screenshot if any skin doesn't work well and they'll try to fix the bug. Use Table/Composite to select composite layer sets. View the selected composite layers by clicking on View/Composite. Only the selected composite layer will be shown. Create composite into one copper layer using Utilities/Convert Composite command. This layer will be a raster filled layer. Copy pads from new layer into the composite layer just created. Run data optimization to remove covered data (in this case the polygon pads will be replaced with flashed pads). Reverse Engineering Procedure: To completely reverse engineer a set of Gerber files into a PADS ASCII database requires the generation of parts or components. It is extremely helpful to have a Gerber layer that has a drill layer with pads the same size as the drill used. This can be used to generate the drill list which is then used by CAM350 to treat a drill location as a hole during netlist extract. The parts created become the footprint library for a design. 1) Import the Gerber layers and set the draw and flash colors differently. This is not a necessary step, but I have found that thermals will be generated better in PADs, and pad Revised 5/11/00 1 2 stacks will be created cleaner, if the thermals are now removed from planes in the Gerber data. Unfortunately there is no easy way and this must be done manually. Optimize the data by running Edit, Line Change, Join Segments. Do a drill file extract using the drill layer (Tools, NC Editor, choose Utilities, Gerber to drill). Setting the draw color different from the flash color makes identification of drawn pads (SMT pads are sometimes drawn) much easier. Any large drawn area (ground plane under a TO220 regulator, connection from backplane connector or large area no drawn with a single decode) must be identified as a raster drawn area (Utilities, Polygon Conversion, Draw->Raster Poly). Use Fill (F key) to verify raster area.
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