You can't cut tempered glass, you can cut then temper though thats not really a diy option.
Laminated glass is an option.
Didn't knew, thanks.
Phone cases printed from regular plastic aren't that great in my experience, you really need to use plastic with some flex (like TPU). The Ender 3 can print flexible filaments to some degree, but it's not very good at it without some significant modifications to constrain the filament path.
> For cases, 3D print one,
I know someone who 3D-printed a phone case with a consumer printer he got for Christmas, and it fell apart within a few days.
As a hobbyist that built my own printer I assure you he could've printed it at a better quality then that. Prints can vary wildly in quality, and the price of the machine is largely irreverent (1000$ printers can easily match a 10,000 $ in quality in many cases). He may not've had the most optimal settings for the print.
That said I don't think 3D printing phone cases is worth doing for any reason other then the cool factor. I'd expect 3rd parties to start selling cases for it fairly quickly, there just might not be a huge range of colors/options/prices
> I know someone who 3D-printed a phone case with a consumer printer he got for Christmas, and it fell apart within a few days.
Then that's his fault, because millions of people made durable flexible material things with their consumer 3D printers.
A bad workman always blames his tools...
For cases, 3D print one, for comfortably less than 200€ you can get a Open-Source Hardware Certified Ender 3, and that's with DHL shipping already.