Ownership decides this craft, not scrap. The Fogger-3000 has no blueprint to research: players who own its Steam item can craft it straight away, and nobody else can, whatever bench they stand at. If it is missing from your crafting menu, that is why.
For an owner the bill is short. The frags are one furnace run, and the calculator queues a batch of low grade fuel crafts with two left over. The metal pipe is the only part worth a thought: pipes are crafted only at a Level 3 bench, and a gun wants the same one.
So craft it once the guns are covered, and keep fuel beside it, because the fog runs on it. The ordinary recycler gives the pipe back only half the time. The snow machine works the same way for its owners, and the fog's two modes are on the item page.
Questions
Fogger-3000 ×10: how many resources?
Metal Fragments ×1,000, Cloth ×75, Animal Fat ×225, Metal Pipe ×10.