Donald Trump has won the US Presidential election, which is good news for defence-focused and US-based 3D printing specialists Amaero (ASX:3DA). Not only is Trump bullish on defence spending and expanding America’s military presence abroad – but Amaero also employs Trump’s former national security advisor Lt. H.R. McMaster. That alone should be enough to raise eyebrows in a good way. But Amaero happens to find itself at the juncture of several initiatives in the US – a need to reshore and scale industrial base capabilities; a ramp-up in defence spending, and, a Trump staple: reshoring skilled,…