Need itar to be defanged first.

you get some good, you get some bad.

Building a rocket shell is probably just fine: you need to fuel yet - that you can't 3D print. probably fine...

Overall 3d printing is a lot more than ghost guns and ghost rockets. That the conversation dominates this small sub-section reeks of 'think-of-the-children' screeching that hides explicit power grabs in regulation and surveillance with the main intent seemingly to be 'enforce copywrite' (of only the big players that can afford to throw their weight around).

Fear pushes people's buttons.

i've recently had youtube randomly suggest me a video where this dude was building his own opensource manpads, with a single rocket costing under $100 in parts (there was no explosive payload so that makes it just a rocket and not a missile, i guess). not long after, someone posted it here on hn but i think it's been removed (by the mods, i imagine) since.

i find these projects both fascinating and terrifying. seeing a single person building what normally involves huge defense corporations and government contracts, these things in their bedroom is amazing. it shows how information wants to be free and how ingenious people can get with whatever motivates them.

Amateur rocketry achieving orbit would be significant. Reaching the moon would be substantially more difficult.

Might be worth checking out the "Copenhagen Suborbitals" group (they have a YouTube channel) and see if they're still active! It's been years but I think I recall they were trying to build something capable of getting a person into space (not sure if orbit was a goal).

Have you seen https://store.steampowered.com/app/2060160/The_Farmer_Was_Re...? It is not a drone simulator more like a problem solving game using a drone.