If it’s only overhangs then you may want to look at increasing the time between layers or increasing the part fan speed on overhangs.

This way there’s time for the layer before to solidify enough before adding more heat and melted plastic above it.

May not be it but it does have a kind of “overheated” look to it.

No need to feel like an idiot, I’ve done it too. Even looked up how to do some obscure thing only to find a link I’ve read before and comes out I have a bookmark for it from a year or so ago.

As for switching settings across objects I agree. I use these things when dialing in one setting across a range such as flow rate. Never for an entire print, though, since a failed print component is going to be dragged across others, etc.

Or the change in temp, flow, retraction, etc may cause strings, or blobs, etc. to affect the others when it’s printing the layers. Unless you’re doing one object at a time which presumes they’re small enough, etc. And even then it failing could mean what remains of the entire object may be dragged across hitting others. It’s just not worth the hassle.

It does show them thinking about processes which is a good mindset to have though.

Experience is a good teacher in this hobby.

Not per item “Profiles” but a lot of slicers let you do overrides.

For example you can override with per object settings in OrcaSlicer (and I presume Bambu). In Cura you can add settings that even apply to a box region (such as increasing infill in a certain weak part of a print or using adaptive layer height just as the top of some Conical shape)

Start with PLA since PETG can be finicky with moisture.

Garages are nice but try to keep drafts to a minimum. PLA is more forgiving there too.

Have fun tinkering and figuring it out. There’s just some skills you’ll acquire as you go. Slicer experience giving you an understanding of orientation for strength and/or to minimize the need for supports.

PLA is also cheap enough to just figure it out. You’ll have bad prints, regardless but you’ll also make some cool stuff too.

PETG has to be dry. I keep mine drying in my filament dryer when I’m printing it and then take it out and keep it sealed with dessicant when I’m not.

Stuff loved to absorb moisture like crazy and is super finicky when it has any moisture at all.

*Sign manOrWoman = null;

Fourth rule… painters tape as bed surface will save your PEI sheets and holds PETG really well.

Or G10/Garolite

No experience with these but I have seen some.

Basically you have 2 extruders and push the filament based on what’s needed.

You do need to purge the melt zone and I these don’t work well with different materials (PLA in one, ABS the other) because of PLA being too hot at ABS melt temps, etc.

As for these knockoffs if it’s cheap enough maybe but I can’t imagine the heat break being too good and it seems prone to jams.

And to add to the conversation(if there’s anything incorrect please let me know) from videos I’ve seen by MentourPilot, Captain Joe and online sources

The process will most likely look like the following (assuming an emergency descent is needed because the cabin can’t be pressurized like with the window vs some smaller hole air leak):

• They will put on their own o2 masks (it’s critical to do this as you can lose consciousness in under a minute)

• They will set the transponder to a code that denotes the emergency to both ATC and nearby traffic

• They will radio the distress both for ATC but also nearby planes to give them a heads up that they’ll be rapidly descending. If it’s in a high traffic area they may wait for approval to begin descent (and you can be sure ATC is going to be moving planes out of the way.). If it’s taking too long they will begin descending anyway.

• They’ll announce to the cabin that they’re doing an emergency descent

• They will start a rapid descent to 10,000 ft (if terrain allows it, otherwise down to whatever they can safely get to). This is because the emergency o2 is limited to about 15 minutes.

Some interesting things I learned about this.

They will often use autopilot for the descent and level flight. This is because of limited visibility and a risk of possible issues caused by low o2.

They turn on all lights to make sure they’re as visible as possible to other traffic.

This descent will be really unpleasant. Not a gentle descent but the safest one (especially if they’re unsure if there’s any structural issues) they can do. Which will be quite a bit steeper than anybody is used to.

So passengers on the plane will experience this as:

• Loud rushing noise. Possible moisture filling the cabin now that you have outside cold air mixing with warm air and surfaces inside

• Masks dropping and seatbelt signs

• Shortly after the Captain saying “Emergency descent” 3 or so times

• Flight screw scrambling to seats and putting on masks

• The sound of the wings adjusting for speed brakes, shuddering from the flight profile change,

• The sounds of the engines being revved up to the planes maximum speed as the nose of the plane tipping down. It will feel like it’s faster than it really is with the shift in gravity followed by being pressed back due to the increase in speed during descent.

• The plane shifting as they turn away from the main traffic area as they descend (unless told otherwise by ATC, etc)

Not a fun experience I’m sure

Some sources to check out

Emergency descend!! Cockpit video

Explosive decompression at Simulador TCP. EAS Barcelona pilot school

Pressurisation Problems: Guidance for Flight Crews

Aircraft “Falling” - Emergency descend explained