bigredgiraffe

I just wanted to add this video to your comment because e-ink is so cool and this guy has a bunch of macro shots of the displays that are awesome and you can see the particles in the screen changing colors.

https://youtu.be/1qIHCUWAgh4

So cool!

Glad to help! Mixing colors shouldn’t be an issue, I have done it in the past, also have mixed PA and PA-CF in the past without issue. I bet you could even find a tent with a window and run a PTFE tube to a dry box outside the tent then you could pull the first color out and put the second one in without having to open the tent.

Also, just to say it out loud I would definitely test the strength of the layer adhesion (especially between the colors since they might have different additives) for anything structural, especially if you might get injured if it fails, just to be double safe heh.

Last, at least where I am, PA is significantly more expensive than ASA or PETG so might be worth looking at those for at least prototypes of the parts. For example, I typically use PLA to prototype ASA parts, has usually been fine to swap it out with just minor tolerance adjustments and it’s way cheaper to print 50 versions in PLA while I’m working out the design and then I print the final ones in ASA or whatever.

I have printed PA and tent idea will probably work but the other person is not kidding, PA is very finicky. Plan on printing PA directly from a dry box as even sitting on the printer will ruin a roll of it if you live somewhere with more than like 20% humidity outside, also make sure your dryer can reach 85c to dry out a spool of PA, even with a dry box I usually dry PA immediately before printing it. As others have mentioned, definitely consider ASA or PETG or maybe even PC (if that printer can print it) where you don’t really need the material properties of PA specifically.

The tent will also probably be important for maintaining temperature of the chamber more than the smell, nylon doesn’t have a ton of odor anyway. You may need to put a blanket on it, you probably won’t need a chamber heater since nylon needs like a 65c bed or more, just make sure to pre-heat the chamber first by turning the bed on, I usually let mine warm for 20 min or more. It is alap important to keep the temps stable as nylon also warps easily which can cause it to pop off the bed while printing too So make sure the tent is sealed and try not to open it.

Sounds like an interesting project though, best of luck!

I found this diagram on SO at one point but I can’t find the post and it is the best explanation I have found for how all of the files work for bash and zsh, each color is an individual path of execution (eg, follow the red line).

Bottom line though, it only really matters if you are overriding something that is already defined, for example I tell my users to use zshrc and I provide defaults and common things in zprofile because zshrc is executed last when they login.

Right? It minorities blew my mind when I read it the first time and keeping that in mind has made my life so much easier overall, and definitely made it easier to describe to managers over the years.

This is great, also if you haven’t read it, you should read Makers Schedule, Managers Schedule by Paul Graham, it really helped me describe this concept to all of the managers I have had hah.

My guess is that is a slicer error because it couldn’t make the shape with a combination of the tooth size on the gear and wall thickness settings. Does it look right in the slicer after it is sliced on the first layer?

I definitely recommend Fully Kiosk Browser, it’s easily worth the 10$ license even if you don’t need the features. The integration into Home Assistant is great, you can do all kinds of things really easily to the app through HA like loading URLs and controlling the screen on and off, the integration is really superb.

ETA: I forgot, it also has a webui to manage it remotely. Also, I’m pretty sure it’s free still, I just mean it’s that good of an app that it’s worth whatever their license costs (I bought it a while ago).

I use zigbee2mqtt on a separate pi4 from home assistant specifically for it more central in my house with the sonoff zigbee 3 dongle with great success. The same pi actually has a zwave2mqtt instance on it with the conbee dongle, just make sure to use a powered USB hub on the pi for the radios, I always had flaky issues if the pi was powering it directly.

I can’t think of any situation other than maybe wanting to get better indexing or changing the storage engine that I would need to re-create and re-insert that way so I’m not sure if you have a constraint that necessitates that or not but now I’m curious and I am always curious to find new or better methods so why do you do it that way?

At home to upgrade Postgres I would just make a temporary copy the data directory as a backup and then just change the version of the container and if it’s needed run pg_upgrade as jobs in kubernetes.

In a work environment there is more likely to be clustering involved so the upgrade path depends on that but it’s similar but there really isn’t a need to re-create the data, the new version starts with the same PVCs using whatever rollout strategy applies. Major version upgrades can sometimes require extra steps but the engine is almost always backwards compatible at least several versions.

Are we talking database schema migrations or migrating a database between Postgres instances?

If it’s the former, the pattern is usually to run them in init containers or Jobs but I have been wanting to try out SchemaHero for a while which is a tool to orchestrate it and looks pretty neat.

ETA: Thought I was replying to your below comment but Memmy deleted it the first time for some reason, my bad.