It depends on your specific case, of course. That 0.4mm is indeed a good rule of thumb. But also, assuming you’re dealing with FFF-printed parts, generally if the two parts slide together along the layer lines, it’ll feel just a little looser than if they slide together perpendicular to layer lines. That’s just due to the ribbed texture inherent to FFF printing. Though printing at smaller layer heights will reduce that effect and also make the parts fit just a little looser over all.

Aside from that, probably the best advice I can give is:

1. Measure/calibrate for dimensional accuracy. [Here]'s a random article on the topic that looks pretty good to me.
2. Prototype. Print once, if it doesn’t fit right, adjust the model(s) and print again. Filament is pretty cheap, really. Also, depending on your situation, you might benefit from doing quick test prints just to see how well it fits. If the whole print is going to take 8 hours but by spending 30 minutes printing just part of the final product you can prove you’ve got the dimensions right, it’s probably worth it to do the 30 minute print.
3. Use elasticity to your advantage. Make latches or attachments that snap into place. That’s useful whether the parts are meant to go together once and never come apart or connect and disconnect repeatedly. Another use for elasticity is if you need two arms of one piece to friction-grip another rectangulat piece, angle the arms inward just a degree or two. One word of caution, though. It can be really easy to overestimate the flexibility of PLA. I’ve ended up once or twice with some pretty hard to open latches.

Look, I right-clicked $1.2 million.

(Full disclosure, it took a little more than right-clicking to download that image. OpenSea apparently purposefully makes it hard to download images. Not terribly hard, though. Only took me a couple of minutes to figure out.)

The world needs more things like Skibidi Toilet. It’s reminescent of a brand of bizarre internet humor I thought had permanently died out long ago.

2023 was the year Mississippi declared war on New Mexico.

I love OpenSCAD. I use it very frequently to make designs for home 3D printing.

Trusted computing is back in a new form. :\

Yeah, that seems bonkers, but it’s how npm works. I don’t always code in JS, but if I do: a) its code that’s going to run in a browser and b) I never ever use any JS dependencies aside from browser builtins. It’s about the only way to opt out of the dependency nightmare that is “modern web dev”.

Ok, I lied a little bit. In my job, I sometimes do JS work on projects with Grunt, Bower, Backbone, jQuery and a gorillion other dependencies. But when I have full autonomy over a codebase like with my side projects, my style is as above.

To qualify that even more, even in my side projects, I often use minifiers, but not ones written in JS or pulled in via NPM.

Of course, that probably doesn’t help much when you have need of functionality that would be much less trivial to make yourself. Again at my job, we use JsBarcode to generate images of barcodes. That would be a royal pain to implement from scratch. If I needed that functionality in a side project, I’d probably just bite the bullet and pull it in from Bower with 30 other bulky dependencies. (Or more likely just refrain from taking on that particular side project. Or possibly generate barcodes server-side.)

Wait, do people who are counting calories cook, for instance, spaghetti with meat sauce, cheese, and meatballs and only count the calories in the spaghetti? That’s got to be kindof a denial and/or self-deception kind of phenomenon rather than legitimately thinking that the calories in, say, sauce are negligible or “cook off” somehow, right?

I’ve got a smart TV on which the Wifi broke very shortly after I got it. I just use a Chromecast and it works nicely.

Derivative and uninspired. Have an upvote.

Ok, then. What if the judge signing the warrant is an occupant of the property in question?

Sure that would basically never happen, but suppose the vampire manages to trick the judge into signing a warrant that covers the judge’s own house or maybe some place the judge frequents.

What’s a warrant if not a court-signed invitation to enter a suspect’s house?

If Trek goes dark, that’ll just be a good excuse to watch all of what’s out there now again from the beginning. Or watch more fan-made and non-canon content.

I can still feel in my mind’s skin the sticky, greasy venier that coated the inside of the play places.

The kiosk, but only if it’s new and hasn’t been handled by the greasy-fingered hordes for years already.

How did you get it to play sound when my phone is muted? How!?

Plus the iceberg lettuce. I’m not saying it’s unhealthy (unless it’s covered in pesticides.) It’s just nutritionally vacuous. Just as healthy with as without.

Let’s see if we can get them to to sixth largest!