It looks like corroded metal, maybe?

When we were looking to buy a house, I basically crossed off the list anywhere that I couldn’t walk to at least some essentials, like basic groceries, pharmacy, a couple restaurants. Our new neighborhood isn’t nearly as walkable as where we used to rent, but everyone else heae seemed to have the same thoughts, and it’s too expensive to buy a house there.

I’ve seen people have success with that on iOS, but it doesn’t work for me on Android. If I disable and left swipes, nothing happens when I swipe, rather than going back.

You got me excited, but it’s not working for me. Are you on Android or iOS?

My older sibling did something similar - getting Ubuntu installed on my very first laptop (a 9" netbook) back in 2008 and replacing windows XP. But be warned: it is a slippery slope. At the time , I just wanted a computer that I could take class notes on (high school), and never wanted to touch programming or the terminal. Now I have a PhD in computer science. I still don’t use Arch though.

Oh boy, I keep a page just for this!.

I need to update it (for example, Arachne perimeters in PrusaSlicer now let you print extra thin perimeters), but it’s useful to have a reference for common tolerances/dimensions like screw holes.

But a couple of my little additional pet peeves:

• Don’t put fillets on the underside of prints (against the bed). The nearly-flat angle always droops and looks bad. Use a chamfer instead, or make a fillet that actually starts at 30° from horizontal.
• The weakest direction is between layers. Design your part such that you can print it in an orientation where the thin/weak parts aren’t printed where the layer lines can snap (eg, print it flat vs vertical)
• Just like the straight lines inside screw head holes, thinking ahead in your design can prevent/minimize the need for support material. The earlier you start thinking about this in you design, the easier it will be. For example, can a part be designed with a 30° slope on an underside instead of being flat? Can you think about your print orientation early in the design process to avoid overhangs?
• Chamfer of fillet inside corners, if it’s a structural part. This will greatly reduce stress concentrations.

Personally, I don’t use 3 perimeters on most of my prints. On my prusa, they look totally fine with 2 perimeters. I only switch to 3 if I need the strength (which also almost always means I’m printing in PETG, rather than PLA, FWIW).

E