I've had an interest in 3D printing since first hearing about it many years ago, but at the time printers were expensive and learning materials and resources were scarce. Nowadays, it seems like 3D printing is as common as regular old 2D printing but I feel left in the dust.

What's really making me want to get started now is I've collected a lot of junk over the years that I've told myself I could repair, but a lot of the repairs would be much easier with a 3D printer and custom modeled parts. Dearest to me would be an old watch that my grandfather gave to me before he died. The part of the watch that connects the strap to the case (lugs, I think it's called?) has broken off and gotten lost, and it's a proprietary part with no replacement parts available. I'd love to just 3D-print a solution but have no idea how to get started.

I consider myself a creative person, I have plenty of experience with Photoshop and illustrator, but I have never once dabbled in 3D modeling software like Blender or AutoCAD. The closest I ever got was peering over the shoulder of an artist who was working on a video game character model in Zbrush, or maybe working on custom Half-Life maps in Valve Hammer. So I'm looking for the most basic, easy-to-follow set of instructions to get me from zero knowledge to successfully printing bespoke DIY repair parts at my local makerspace.

Would also love to have this be a discussion on 3D printing in general. How did you get started? How have the tools and techniques evolved over the years? What do you think are the next big things coming in the hobby? What are things you wish you knew when you started but only learned after mistakes were made? Share your thoughts and anecdotes, I'd be happy to read them.

Inspired by the news of the new 13" MacBook Pro and Surface Book 3, I was thinking about just how much I hate not being able to replace the RAM, SSD or even battery in newer MacBook models. It seems like such an extreme decision and I wonder why.

The obvious answer is to make the devices less repairable thus forcing people to upgrade sooner.

But Apple isn't really dependent on devices breaking. Hardware is vastly improving every year and their customer base happily upgrades just for that. Also it could be argued that their most profitable product line – iPhones – have, despite all of that, some of the healthiest life cycles in the smartphone marketed with people happily using 5+ year old devices which still are supported in the latest releases of iOS. Few other devices hold their value in resale like Apple products, their sturdiness is quite remarkable and clearly factored into pricing and consumer decisions. They pride themselves with a reliable repair program and I have to imagine their repair geniuses (their term, not my sarcasm) don't like messing with glue.

So, all things considered, is there an argument for fucking gluing in batteries other than petty greed? Like, is it cheaper? That doesn't seem a motivation behind any other major design decision on their part. Is it it lighter? Easier to cool? Does it make for a slimmer chassis?

I tried searching the question but couldn't find anything (in fact, I wouldn't even know what terms to search for). Is there any good analysis or reasoned speculation? It somehow makes less sense the more I think of it and it would give me some head peace to at least know of some arguments for it other than Apple being assholes.