Star Wars blueprints

Here.

AT-AT, AT-ST, Speeder bike, TIE fighter, and X-Wing.

You can find a metric shit ton more here, plus blue prints for Star Trek, Babylon 5, and Star Blazers.

And that’s just the science fiction section.

Great stuff.

For something a little more hands-on, there are also buildable models available for several sci-fi vehicles. I’ve got a star destroyer, AT-AT, and AT-ST gracing my desk at work.

The English on the instructions is a little poor, but generally understandable.

Those look printable to me, in which case - AWESOME!

Related, this is a very cool site that shows various aliens and space vehicles to scale.