ガーバーファイルからPCB仕様を読み取ることができるソフトウェアは何ですか?

メーカーの PCB 設計者からの BOM が必要でした, でも彼は私にガーバーを送ってくれた. どうすれば開いて読むことができますか?

There is not one Gerber file, but a separate one for each layer.

By layers, I also mean solder mask layers, silkscreen layers, and solder paste layers, as well as the electrical layers.

  • Distinction between them is defined by conventions on the filename, eg annnaa.GTL refers to the “Gerber Top Layer”. But these are just conventions.
  • Hole information is in separate files, of which the most important is
    the NC drill file.
  • Another convention is that a line drawn on the outside of each file is intended to be the board outline. Traditionally though, the board outline was provided in a separate, file, often an AutoCad file.
  • Internal power planes are also, traditionally created as reverse patterns, ie the shapes, lines etc, represent no copper.
  • 銅の厚さ, the relevant IPC standards, instructions for the silkscreen, the layer stack-up including board and individual layer thicknesses, Dk requirements, prepreg type selection, 等. are all usually included in separate files. As is a drill table.

But it is also common to include much of that as text data on the “Drill Layer”. 再び, this is just a convention.

  • ガーバーファイル, in themselves, are very incomplete. They are a design output to which a lot more information has to be added. There is no simple way to go backwards from the Gerber files.

It is a bit easier with RS274X, which can have (but rarely does) multiple layers in 1 file.

The most important addition with ‘X’ was embedding the aperture table in the files.

The original Gerber machines shone light through holes in a wheel. Each wheel had 25 “holes”. Each hole might be a circle, rectangle. Gerber file commands are a set of light on/off commands, interweaved with X,Y coordinate pairs. Light would be made to shine through the selected hole and as the arm with the wheel on it moved, an image was traced on a film. The wheel positions were D01 .. D25. And you will see this “Dnn” pattern through the Gerber file.This text represents either the current wheel position, or a new one.

If you had more than 25, then the wheel positions might also include D26.. D50, 等々. One was supposed to change the wheels, ie run the file several times, changing wheels as required. Gerber had a set of standard wheels, and you were supposed to either use these, or you could have a wheel made up for you.

Long, long ago, such analogue film systems went the way of the Dodo.

But until ‘X’ your CAD system had to create a separate aperture table file, which had a way to define what shape D01 was, D02 etc. ‘X’ simplified that by incorporating the aperture table into each Gerber file.

#PCB設計

https://www.youtu.be/OUTScSJPXEU?si=LSLHwrxCdmWgtbt5

の写真 オリバー・スミス

オリバー・スミス

オリバーは、PCB 設計に熟練した経験豊富なエレクトロニクス エンジニアです。, アナログ回路, 組み込みシステム, とプロトタイピング. 彼の深い知識は概略図のキャプチャに及びます, ファームウェアコーディング, シミュレーション, レイアウト, テスト, そしてトラブルシューティング. オリバーは、電気設計の才能と機械の適性を活かして、プロジェクトをコンセプトから量産まで進めることに優れています。.
の写真 オリバー・スミス

オリバー・スミス

オリバーは、PCB 設計に熟練した経験豊富なエレクトロニクス エンジニアです。, アナログ回路, 組み込みシステム, とプロトタイピング. 彼の深い知識は概略図のキャプチャに及びます, ファームウェアコーディング, シミュレーション, レイアウト, テスト, そしてトラブルシューティング. オリバーは、電気設計の才能と機械の適性を活かして、プロジェクトをコンセプトから量産まで進めることに優れています。.

他の人が尋ねていること

SMT コンポーネントは高電圧アプリケーションには適していませんか?

多くの組立工場がSMTの仕事を求めています, 高電圧アプリケーションにはスルーホールの方が良い選択肢だと思います. 高電圧プロジェクトが開始される前に, SMTまたはスルーホール部品について問い合わせる必要があります. これに関する研究はありますか?

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