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Sender: "piclist-bounces@mit.edu" Date: Wed, 3 Feb 2021 07:58:48 -0800 Subject: [EE] Measuring PCB copper weight? Thread-Topic: [EE] Measuring PCB copper weight? Thread-Index: Adb6R0dwejLnxkFfRa6aQizIB+dgSA== Message-ID: <601AC838.5040808@narwani.org> List-Help: List-Subscribe: , List-Unsubscribe: , Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: None (protection.outlook.com: narwani.org does not designate permitted sender hosts) dkim-signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=narwani.org ; s=default; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Date: Message-ID:Subject:From:To:Reply-To:Sender:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=fUQB3ggFLGBQl8DcoDh0tVxTF9XN86/SSJG5k9c5004=; b=kEYf99sb+1ZDw68uDIjPF34Auy 7h2zgIZ5ZOph/feejs8+W8EzPEEIA1cinujkddv6JEmVWI2AsrASOoRLSwgPqZc+1jGIxTb+ymFf4 WZR+wSTHHoYrxPgk03qDXdnn4vRXmWp3gDZmdYZdc5pjJiBSqoX9rj0UE8IwhnQhxhDTZ4ECE/rxb /9eMsV9+e57gMNs9xAPJCq2+LrBBxZ23SBw2NpmuNUdgutbvq3C4G1jQpzaw7Ia+MeylR4X09ZDrV 3hpNuyado1bsK/iVINIdSRhzFlfWL43RkyMgHGmLf9klRG1diFEdEwTEXyqSAfAVWjqngF5SGBAMq HT729Qrw==; authentication-results: spf=none (sender IP is 68.65.123.245) smtp.mailfrom=narwani.org; mit.edu; dkim=pass (signature was verified) header.d=narwani.org;mit.edu; dmarc=bestguesspass action=none header.from=narwani.org; user-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-source-args: x-source-dir: x-antiabuse: Sender Address Domain - narwani.org x-source: x-authenticated-sender: premium47.web-hosting.com: ca4@narwani.org x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Is there a simplish way to figure out or measure the copper weight on an=20 existing PCB? I'm asking because I'm redoing a layout for someone and I did not do the=20 original circuit design, so was planning to use the same trace widths as=20 on the original board, but I'll need to know the copper weight to order=20 a prototype board. If I have to redo the math on current etc, that opens up another can of=20 worms as I don't have all of the specs otherwise. And the copper does feel thicker than usual. Thanks. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .