ffhein @ fhein @lemmy.world

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12

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311

Joined

2 yr. ago

Since lemmy is bugged and won't let me reply to @DrNeurohax@kbin.social's comment, here's what I tried to write:

Buying a simple printer with lots of modding options can indeed be a good way learning, but there are a few reasons why I don't recommend Creality: They appear to have done some serious cost cutting after their initial success where they established themselves as the makers of the best printers for beginners. Primarily this is noticeable on their (lack of) quality control, and there's a too big risk that you get a unit with manufacturing or assembly flaws. An experienced user might be able to quickly diagnose and fix these errors most of the time, but it's very difficult for a first timer, who is more likely to assume they're doing something wrong and keep bashing their head against the wall.

The second issue is just lack of value for money. Creality can put their prices higher and people will still buy Enders because of their reputation and marketing. The Ender 3 v2 barely had any meaningful improvements over the first Ender, and was definitely not worth an extra $100. I used to say that Creality has fallen way behind the competition (i.e. compared to other cheap Chinese printers) but IMO their Sprite extruder is decent, and they also put dual Z on the Ender 3 S1. I would even go so far as to say the E3S1 is a good albeit overpriced printer, assuming you get lucky with quality control. And if you can get an Ender 3 Pro for $99 when Microcenter runs that campaign that's a very good price for a bare-bones printer.

The important thing to keep in mind is to never have any brand loyalty when it comes to cheap Chinese printers. Most companies have made a few ok, or even good, printers but also sell several bad models.

And to clarify, I didn't meant DIY would be an alternative to Creality for a first printer, rather that there are other cheap Chinese printers that offer better value for money and slightly lower risk of getting a flawed from factory printer, for example one could get an Anycubic Kobra Go instead of an Ender 3 v2. Currently Sovol SV06 looks like the over all best choice for budget printer, but that can change at any time. A few years ago Artillery Genius was considered a relatively good starter printer, but then they replaced it with Genius Pro which is more expensive and in some ways arguably a downgrade from the previous model.

I'm having a similar issue on lemmy.world but it seems intermittent.. Some times it just spins indefinitely when I try to post or comment, and even if I retry it won't accept it. While commenting on other posts, like this one, works just fine at the same time.

I fell for the marketing, paid reviews and fake review sites so I ended up with an Ender 3 v2. Spent a lot of time trying to level and calibrate it but never managed to get rid of the gantry sag entirely. Eventually discovered that the x axis tensioner didn't quite fit on the aluminium extrusion and had been bent from overtightening at the factory, which was causing the belt to wander, but it was pretty easy to fix by jamming a thin metal spacer in there after I found it. Have spent a bit over €350 on upgrading the printer to get it to a state where I'm (mostly) happy with it.

Was hoping to build an Annex K2 some time, but the component costs have gone up so it's even more expensive now..

Sounds like a good guess. In general, PLA wants as much cooling as possible, so enclosing the printer can have an adverse effect. If you need the enclosure to keep pets etc. away from the printer, perhaps you can try adding some PC fans to get more cooling.

For mid range desktop CPUs (around $300) it's very even between AMD and Intel. When I was upgrading a few months ago I was deciding between i5 13600K and Ryzen 7 7700X which are similarly priced. Intel has more cores and better multithreaded performance, while AMD draws less power and has better single thread performance.

Going up to $400 it looks like Intel has no similarly priced competitor to Ryzen 9 7900X.

At $550 it looks like the situation has turned around, and i9-13900K has better power usage and single thread performance, while Ryzen 9 7950X wins on multi threaded performance.

In addition, the AM5 platform still has a bit of problems. Supposedly the long boot times have been improved with newer BIOS for my motherboard, but I'm a little bit afraid to update since other users have reported they got instabilities and at least my computer is rock solid now.

I think even technically that only applies to pure PLA, and most filaments will have at least some additive for colour. Usually filaments blended with some other plastic are marketed as PLA+, but I don't think there's any regulation at all regarding 3d printing filament so I wouldn't take for granted that regular PLA doesn't contain other plastics/additives/contaminants. Though even if the filament contains other stuff it still might not be harmful of course.

but if you just click Next like most users will do, it’ll be enabled

That's the definition of opt-out, so they're telling the truth :) Opt-out is the worse alternative when it comes to unwanted features, opt-in would have been better.

By rail kits, you mean stuff you find on amazon/aliexpress? "Upgrades" you find there tend to be poorly designed and often very low quality unfortunately.

If you want some inspiration, check out Churls' linear rail mod. I think he's a well respected modder within the Annex community so his design ought to be well thought through.

"programmed to" sounds like a human sat down and wrote explicit instructions for how to answer this specific question. It might also just be that the language model was trained on texts that predominantly said that RHEL is not violating the GPL. I don't think anyone outside Microsoft can know which one it is.

They're a pretty big contributor to Linux, so even if you don't see their work you're probably using it anyway. https://lwn.net/Articles/915435/

added value that cannot be fulfilled by independent experts or FOSS community

Wrong question IMO. It's more relevant to ask "without Red Hat, would independent experts or the FOSS community have added the same value?". Sure, it's possible that Red Hat has some highly skilled developers that possess unique skills required for their contributions, but in general contributing to FOSS projects is more about willingness to spend large amounts of time and resources on something that doesn't give you money in return.

Lots of large companies "could" have spent thousands of hours contributing to Linux, but unless they actually do it then it is irrelevant.

At my old job I wanted to use zsh, but all the build and test scripts only worked in bash or csh, because they would depend on you sourcing other scripts setting up the correct environment for the project you were currently working in. The scripts were also quite slow, and sometimes one script would depend on changes to the environment done by a different script, so it wasn't feasible to simply launch a new bash shell each time I wanted to run something.

So my hack was to write a zsh function that would spawn a bash process in the background, source the environment depending on your current folder, and then wait for commands. The zsh function then piped the command line to run to bash, which in turn piped any output from the command back to the foreground shell. On the next invocation it would reuse the already running bash process, and if it detected that you had changed dir to a different project it printed a warning that you probably wanted to re-start the bash shell (which was done with another zsh function).

E.g. b tb7 build would run "tb7 build" in the bash background process while to the user appearing as if had been run normally in a foreground shell. Then b tb7 test would run "tb7 test" in the same bash process as the previous command.

Since I worked a lot in terminals connected to remote servers, I also wrote zsh functions for copying the current directory, and another for cd-ing to whatever is in the copy-paste buffer. If it was only locally I would press ctrl-shift-t to open a new terminal at the same location, but it doesn't work if you first have to open another ssh connection. Later I started using tmux and these functions became less useful.

The third "hack" I made was to easier resume work in terminals where the ssh connection had timed out. My zsh prompt prints a shortened version of the current directory, e.g. "/storage/cnffhein/proj/monkeys/somemodule/dir/anothersubmodule/cloned/src" prints as "/s/c/p/m/s/d/a/c/src >>>" so my function did a depth first search of the file system to find a path that matched the abbreviation and cd:d there. Since everybody had the same prefix to their username and had the same projects checked out I made it search any dir matching my username first. E.g. ccd /s/c/p/m/s/d/a/c/src would find and cd to /storage/cnffhein/proj/monkeys/somemodule/dir/anothersubmodule/cloned/src