this post was submitted on 07 Mar 2024
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Showerthoughts

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A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The most popular seem to be lighthearted, clever little truths, hidden in daily life.

Here are some examples to inspire your own showerthoughts: 1

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[–] runwaylights 53 points 10 months ago (2 children)

Long. Printers are pretty complicated machines, because they have to work with a natural product that shrinks, expands, folds, rolls itself up and sticks to other pieces of paper. I once heard a printer engineer explain that they use small puffs of air to lift the paper, but because there's also heat involved in the printing process that the paper sometimes rolls itself up or expands which causes jams etc. And I'm sure there's more going on.

Which isn't to say that HP aren't bastards.

[–] [email protected] 8 points 10 months ago (1 children)

If we shoot for a much more primitive printer, we’re pretty close.

Something that uses a pen or quill to draw on an unmoving sheet of paper. Kind of like how CNC routers are set up. The gantry moves along the full length and width of the paper.

After that, you can print everything outside the electronics and the quill. Right?

[–] SpaceNoodle 35 points 10 months ago

That's just a plotter. Replace the extruder nozzle with a pen and you're there.

[–] [email protected] 1 points 10 months ago (1 children)

Paper shrinks and expands? What?

[–] [email protected] 20 points 10 months ago (1 children)

Everything shrinks and expands as you heat/cool it. It's called physics and it's a fucking mess. The more you learn the weirder it gets 😵‍💫

[–] Everythingispenguins 1 points 10 months ago

God damn physics some much for the immaculate plan. Why did god invent physics anyway?

/s

[–] unreachable 29 points 10 months ago (1 children)

not until the existence of 4D printer, that can print a 3D printer

[–] [email protected] 8 points 10 months ago (3 children)

But wouldn't that mean that you already have a 3d printer that can print a 2d printer? As the 4th "D" is time?

[–] [email protected] 14 points 10 months ago (4 children)

The fourth D is right beside you, even if you can’t see it. It penetrates you everywhere.

[–] [email protected] 8 points 10 months ago

The D was inside you the whole time.

[–] [email protected] 2 points 10 months ago

Oh wow I must be an expert in 5D then, 6D on special occasions.

[–] fubbernuckin 2 points 10 months ago

That's why your organs leak out from your ana and kata

[–] irreticent 1 points 10 months ago

It penetrates you everywhere.

Kinky.

[–] bizzle 4 points 10 months ago (1 children)

There are actually a bunch of theoretical spatial dimensions, including 4th. Check out the HYPERCUBE!

[–] [email protected] 2 points 10 months ago (2 children)
[–] irreticent 1 points 10 months ago

Schizophrenia on display.

[–] bizzle 0 points 10 months ago

Holy shit dude that is absolutely unhinged, very glad I saw it. I'll never be the same

[–] [email protected] 2 points 10 months ago

Imma 4th deez nuts down ur throat!

[–] [email protected] 16 points 10 months ago

You can already 3d print a plotter, which is close.

[–] cynar 8 points 10 months ago* (last edited 10 months ago) (1 children)

Likely not for a long time.

3D printers aren't a magic make anything tool. They are a versatile and useful addition to our toolboxes.

You could likely print a lot of the parts now. Unfortunately, it would be the "vitamins" that would catch you out. Circuit boards are possible, but difficult. Silicon chips are currently impossible. Print heads would be almost impossible to print too.

Instead, I would expect someone to come up with a more general "auto fabricator". A combination of tools combined with robotics, and a standard set of "vitamin" components. Such a system is perfectly feasible (though not that soon) and could go from raw materials to a functional 2D printer. It could also make a kitchen blender, a new lamp, or whatever you decided you wanted (within reason).

An interesting take is the book series of the bobbyiverse, starting with "We are legion, we are bob". They play around with the limits of 3D printing, and how to go beyond them.

Tl;Dr 3D printers are awesome, but not a "do everything" tool.

[–] [email protected] 2 points 10 months ago (1 children)

*Silicon. Silicone is a kind of rubber.

[–] cynar 1 points 10 months ago

Damn autocorrect ducking up my messages. Thanks for the heads up.

[–] [email protected] 6 points 10 months ago* (last edited 10 months ago) (1 children)

If you have enough money, you can technically do so right now. The only thing you wouldn't be able to print assuming money was no object and access to certain tools was readily available are the magnets for the motors. At least I don't think... Can you melt a magnet down and reshape it and it still is magnetic? 🤔

There are metal fab printers and the way circuits are mass produced is also, essentially, 3D printing. You couldn't do a print-in-place type print and make a completed printer. Unless you combined everything into a single unit. Which would be expensive as fuck.

[–] [email protected] 0 points 10 months ago (1 children)

How much of this thing could be reprap'd?

If you're not going to click the link, it's an HP dot matrix inkjet from 1984 that...doesn't look that complicated to make.

[–] [email protected] 1 points 10 months ago

Here is an alternative Piped link(s):

this thing

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.

[–] hperrin 3 points 10 months ago

Inkjet print heads are MEMS, so the answer would be until we can 3D print those.

[–] [email protected] 3 points 10 months ago* (last edited 10 months ago)

It is possible right now. OP didn't say an electrical printer, it is 100% doable on old mechanical printing model.

[–] [email protected] 2 points 10 months ago* (last edited 10 months ago)

You can start here: https://hackaday.io/project/176931-hp-printer-cartridge-control-module/details

HP printers are conceptually quite simple devices, the printer just moves the cartridge and the paper. The cartridge does all the actual printing. So you reverse engineer the pinout on the cartridge and you can make your 3d printer do normal printing. That's also how those little handheld cube printers work.

[–] [email protected] 0 points 10 months ago* (last edited 10 months ago)

limx->0 1/x