WASHINGTON, July 30 (Reuters) - The United States is suspending a “de minimis” exemption that allowed low-value commercial shipments to be shipped to the United States without facing tariffs, the White House said on Wednesday.
Under an executive order signed by President Donald Trump, packages valued at or under $800 sent to the U.S. outside of the international postal network will now face “all applicable duties” starting on August 29, the White House said.
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For my purposes: CNC routing is too sloppy. Photolithography is promising, but involves a lot of steps with potential for error at every stage, not to mention the chemicals necessary for etching. Lasers are interesting, both for lithography and direct copper ablation, but there’s a high barrier to entry with cost.
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Computer-controlled laster etching/cutting is a thing - ideally we have as few manual steps as possible.
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Those can be adequately overcome by a proper controller. The greater challenges are in the physical effects of the actual method, such as CNC burrs and ablation heat spreading.