The former provides far too much ambiguity when using the schematic as a resource when working with a circuit in the field, and at the least requires inclusion of a pinout diagram for every component in the diagnostic package. The two major issues I see at present are the lack of device pin numbers on schematics and absence of thermal relief in plane ties. I think that if a few deficiencies were addressed, LibreCAD would be a superior alternative to the tools presently available to me and will follow its development going forward. Please regard the observations as constructive criticism, and understand that I recognize that some items with which I take issue may be due to a lack of understanding on my part. During my evaluation, I’ve been compiling a list of comments and questions which I share below. LibrePCB shows great promise, though in its current state it doesn’t appear to be suitable for our needs. As I will soon begin work on a set of circuits for a new facility, I’ve spent a couple of days this week looking at current alternatives. I used KiCAD successfully for a project in 2018, however for reasons which are well described elsewhere, I don’t consider it a good option. In my present job, others may have a need to access and update my designs, some of which may have a service life exceeding 20 years. I have a licensed copy of P-CAD 2000 which has been my most commonly used tool, however it’s difficult to keep it running under Windows 10, and it’s by far my preference to avoid that operating system environment altogether. While I’m not a full-time board designer, I’ve developed 50 - 80 PCB designs over the past 25 years using a number of packages, among them OrCAD, Allegro, KiCAD and Eagle PCB. Possible that this is a side effect of having certain units (e.g., inches) specified as the default unit for new drawings.Over the past several years, I’ve occasionally looked into open source alternatives to commercial PCB development packages. This issue has been submitted to Github but is left here as a reference. Change these values back to defaults, or to where you intended them to be, will revert your drawing to its intended form. The main items are Text Height and Arrow Size, but other entries have also changed: Extension lines: Offset, the default for Extension lines: Fixed length, Linear zeros, and Decimal separator. ![]() An examination of the default dimension object settings and the settings changed in this file reveals the differences. In this case, the file had originally left all default values the same but changed the General Scale setting to 50 and the Linear Precision to 0.00. ![]() When opening a previously saved file (LibreCAD 2.1.3), there may be times when the existing dimensions appear to have "blown-up", or the dimension objects are represented as very large, while the dimensions themselves remain correct. The intent is not to mirror related Issues in the GitHub repository, but to present workarounds to accomplish specific tasks.ĭimensions objects "blow up" or are very large when opening file Overarching dimension appearance for a file is set in Drawing Preferences: Illustation of dimension format parameters from "Drawing Preferences"
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