-------- Original Message -------- From: Luke Kenneth Casson Leighton lkcl@lkcl.net Apparently from: arm-netbook-bounces@lists.phcomp.co.uk To: Eco-Conscious Computing arm-netbook@lists.phcomp.co.uk Subject: Re: [Arm-netbook] rk3399 what full schematics does lkcl want? Date: Sat, 20 May 2017 16:27:33 +0100

btw ron please do cut context that's not necessary, it was very hard to find the questions you wrote.

On Sat, May 20, 2017 at 3:47 PM, ronwirring@safe-mail.net wrote:

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then once that's done you then have to do the PCB design *from* the schematics, and that takes even longer. and will contain mistakes.

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Is it difficult or takes a lot of time? I ask because the converting to cad files cannot be split up in numerous pieces and put on a website, where people can each solve one piece?

so, cutting all but the relevant context, and answering just the questions you asked: there are two aspects.

firstly, the schematics: these just take time. it could be parallelised in theory

secondly, the PCB layout: this takes time *and* is difficult. creating the footprints for compoents could be parallelised, but the PCB layout - positioning of components, connecting components, laying out tracks and the planes? no - for such a small PCB that is best handled by one person with the required expertise.

and that task alone takes months to do from scratch.

l.

Do you make your pc card a20 cad files public?

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