How do I start a business selling PCB Boards?

Nigel Goodwin said:

There are lot's of options out there, so it would depend if yours did something I wanted that others didn't, and if it was competitively priced. However, I've never bought any such boards - I would usually simply design my own - but I've not used a Nano, but do use Pro Mini's. In fact I've just had boards come from China last week using Pro Mini's for converting my cordless tools battery chargers to Li-Ion - with the board designed to replace the existing one in the chargers. I based on a design I found, and was going to port it to a PIC - but then thought "what's the point", as there's plenty of board space available.

Edit:

Here's an example, only £2.51

Multi-Function Funduino Nano Shield Nano Sensor Expansion Board Geekcreit for Arduino - products that work with official Arduino boards

Only US$3.99, buy best This nano shield lead out all digital IO port and analog IO port, each one with standard positive and negative power interface. Lead out the I2C interface of mainboard for convenient connection. sale online store at wholesale price.

www.banggood.com

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Visitor said:

I'm not sure you're headed in the right direction, but....

I have a few suggestions to improve your board based on my experiences.

Mounting hole clearance
There's not much clearance to connectors at two of the mounting holes, and a standoff or nut will cover some of your labels. To remind myself to leave enough clearance, I designed a mounting hole component that shows the clearance for a nut and clearance needed for a nut driver in the document layer. It doesn't show up on the finished board, but it's a reminder when laying the board out.

Trace Spacing
There are a few places where traces are needlessly close together. Where there's room, spread things out more.

Vias
The vias look tiny. I suggest making them a little larger. As a rule, don't push the fab house's limits where you don't have to - sometimes reliability suffers when pushing their limits.

Corners
PCB corners are sharp. Rounding them slightly makes the board more comfortable to handle.

Lock Footprints
As people with less experience may be assembling these boards, use lock footprints for the headers. These were designed by a guy at Sparkfun; staggering the holes slightly holes a header perpendicular to the board to make soldering easier.

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Sashvat said:

Thanks for the suggestions, but would like to know your reason as to why I am not heading in the right direction? Would like to know your point of view

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Nigel Goodwin said:

How much do you expect to sell the boards for?, in US Dollars.

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Sashvat said:

I am thinking of selling it for $6.

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