I've ordered a few 2-layer PCBs for hobby purposes. The first was made with KiCad and the others with DesignSpark. But I learned a few things from Carol's lecture.
I use a batching service now called OSH Park (formerly Dorkbot PCB) with excellent output (boards are US made). For my hobby use it's worth waiting a couple of weeks to save a couple hundred dollars compared to the cost of quick-turn places like Advanced Circuits.
@Mr. E, Don't have any names for you. It would depend on the volume. If your are willing to wait and have enough volume, ask for their bottom price. Some manufacturer's here will have a relationship with a Chinese mfr and can handle it for you.
To double check package layouts it helps to print the top layer on a good laser printer, as well as the bottom layer, mirrored. Then actually put your components on the paper to make sure everything is OK.
It really helps to talk with the vendor--it can save you lots of money. Also, many vendors have standard design rules. If you meet these rules your board will cost less. For example, one 8 mil trace can add 10 or 20% to the board cost if the vendor's standard is 10 mil traces.
@Rob Generally good, never the quality I usually expect and little room for modification once they are in the flow. There are two streams: one for prototyping and another for production quantities. Some houses want it panelized complete with registrations, others will want to do that themselves.
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Last year at Hannover Fair, lots of people were talking about Industry 4.0. This is a concept that seems to have a different name in every region. I’ve been referring to it as the Industrial Internet of Things (IIoT), not to be confused with the plain old Internet of Things (IoT). Others refer to it as the Connected Industry, the smart factory concept, M2M, data extraction, and so on.
Some of the biggest self-assembled building blocks and structures made from engineered DNA have been developed by researchers at Harvard's Wyss Institute. The largest, a hexagonal prism, is one-tenth the size of an average bacterium.
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