Every blueprint

The whole library, by field, difficulty, cost and time. Reading any of it is free and needs no account.

Sorted by what you can actually do

Difficulty and time matter more than category when you are deciding what to attempt this weekend, so those are the axes rather than a taxonomy.

Industrial and buildable are different things

Some blueprints describe a process you could never run at home — a paper machine, a can line — and they are marked as such rather than presented as projects. Explaining how something is made is worth doing on its own.

Questions

How many blueprints are there?

The number is on the page rather than in this sentence, because a count typed into prose goes stale the moment one is added.