And she has a mechanical pencil!
"...hmm, hmm hmm hmm... ...huh, wonder if you could get partial elasticity out of something by troporting elasticity while it's already trying to stretch... Molds equal to axes of symmetry plus one for the y-axis...and you would need fittings, probably, for the boxes..."
Twelve-Step Plan For Creating Exact Duplicates Of Arbitrary One-Part Material Objects, If (And Only If) One Can Troport Melting Points
1. Acquire a template object (or more generically craft a template, but this is beyond project scope.)
2. Acquire a detailed cast of any significantly concave surfaces (dimples in the surface are fine, a bowl is probably not fine) - if you are attempting to create something with a closed, hollow interior, I cannot help you anywhere near as much as I'd like at this time but suggest leaving a tiny hole and patching it afterwards. (Exploration of certain properties of metals whereby sufficiently clean edges can simply fuse together may be useful.)
Sidebar: Casting Process:
Acquire a) ice, or a solid with the melting point of ice (or other liquid-at-room-temperature objects) and b) sufficient material to fill the interior of said concave surface or fill a segment of exterior mold.
Swap the melting point of ice to your chosen mold material.
Allow the mold material to fill the concave portions of your work, one at a time / fill the segment of exterior mold, with fitted concavity, one at a time.
Resolidify the mold material, and troport the melting point back wherever you took it from.
3. Analyze the topology of your object: does it have any points where a hole bores through the material (e.g. a mug's handle)? Prepare one additional exterior mold-case per topological hole.
4. Cast the exterior surfaces.
Sidebar: Mold Design and Shaping:
It is at approximately this point that she makes a frustrated noise and - carefully puts the sheet of paper back down, folded in half.
"Maybe if I do the thing I will be better able to explain it, because while the individual steps I would take are clear enough to me, they're proving to be quite a pain in the ass to generalize and put to the written word. And I'm definitely kind of going to need to figure out the process; I'm going to need to make some specialized metal parts if I want to make a portable electricity generator, because you can just do it with magnets moving predictably, and it'd be a damn sight easier than hand-forging coils, chains, and cogs. ...Though what I ought to do is just make a heat engine, if I only actually remembered the details of the How It's Made show where they explained the things off the top of my head!
"Still, I can probably make something, even if it's unlikely to reach huge efficiencies without the work of greater minds than I.
"...oh dear gods, I have almost no idea how electrical wiring works. Fuck, fuck fuck fuck fuck. That's the sort of shit that ends up with dead bodies because your wiring shorted out and caused a fire, or someone touched it while it was live, and I don't have any electricity cheat-sheets handy as far as I know so I can't even develop it from known principles.
"...So what can I do, if I don't have textbooks?
"...First I should probably check and see if any of my other books mention things, but that's a power drain and I can't yet replenish, especially because my phone battery is lithium-ion, which is not something I even know the particular theory of...
"I can hope my calculator has something useful. ...Let me check that."
A bit of buttonpushing ensues.
"...Well, at least it has the by-definition SI units, if not how they were defined, in the segment I just checked..."
And she pushes the buttons some more!
"...Aaaahahahahaaaa we have UNITS! Excuse me. I got a bit excited, there. It's not what I was looking for, but - I have the numbers! I have the units! And from there I can re-derive the equations if I must, not to mention convert to and from local measuring standards! Incidentally, standardization of parts is a great boon to any attempt to build anything.
"Huh, I wonder where the etymology for 'derive' and 'derivative' - derive, and the math term - ...oh hell, you probably don't even have calculus, do you? Well, at least I do have a chunk of my calculus classwork in here, just out of ontological inertia... - the tendency of things to keep being things, I mean. If you've ever read a story where the evil wizard's tower collapses when he dies that's the opposite of ontological inertia.
"Math and language aside, I can at least work out some useful things from having unit conversion tables, but that doesn't make me an electrician; also I don't have a big book of material statistics handy. There's any amount that we can get from the periodic table, but it's not very helpful. Certainly not for compounds and aggregates, which is most of what you use when you make stuff.
"I'll keep looking, though."
Tappity tap-poke, go her fingers.
"...If I'd known I was going to get isekaied, I would've brought a copy of Wikipedia or something..."
And then, she closes up the calculator in a practiced maneuver.
"Alright, that's all I've got, right now. I should prooooobably get in touch with a government figure, now that there's someone who'll vouch for my not being completely 'round the bend, because I don't exactly have trade skills that work here. I was in training to write the high-level instructions that get transformed into the low-level code that runs on the hardware that these machines use, and I never did finish NANDGame, so I'm approximately three levels of abstraction too high to build a proper computer from the ground up, let alone an Internet, because I have no idea how Hedy Lamarr invented the fundamental theorem of Wi-fi, nor do I have the actual engineering standards documents.
"Short-term plans, I'm going to need to acquire some money for actually doing the research to get from no-indoor-plumbing land to - anything resembling modern societal standard-of-living - from somebody, because while I'd damn well try to do it anyway, it'll be easier if I have a place to live and work, and food to eat. I could probably stand to get some food and water now-ish, honestly; I ate before I arrived, but haven't since, and by my phone's clock it's been some time since then."