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ama5322

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On the safety of fiber-infused 3D printed objects

thregr.org
2 points·by ama5322·vor 4 Jahren·0 comments

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ama5322
·vor 3 Jahren·discuss
I was able to carry the onewheel on any transport, and that's nice, but it's not as convenient to lock compared to a bike. It's also too heavy to carry comfortably for more than 5 minutes. When you want to go into a supermarket for example you're in a worse position compared to a bike.

How do you handle an escooter in that situation?

I've seen the "carry handle" in action on a EUC, and it's pretty convenient for that. Held vertical takes next to no space on the ground so it's not much different than having a trolley.
ama5322
·vor 3 Jahren·discuss
Can't comment with a unicycle, but I regularly ride bikes, used several electric scooters and onewheels.

The onewheel is genuinely fun to ride and control. It does require a lot more attention than a bike. And I also never felt comfortable riding it faster than my ability to outrun it, which meant that it's never exactly ideal for long commutes (see my other comment above about the safety if interested).

For long distance and commuting, a bike is unbeatable IMHO. Comfortable, safer at speed. Electric or not.

I never saw the point on e-scooters, and don't own any for this reason. I feel more in control and have better ability to manouver and recover with a onewheel than an e-scooter, but the e-scooter requires almost zero brain to use, so there's that. The e-scooters have much bigger range too, and are less tiring to use.

I wish I could try an EUC. I suspect it has similar characteristic to the "flow" mechanics of the onewheel which would make it appealing, but I wonder how fast I would actually push it comfortably before wearing a full-face helmet.
ama5322
·vor 3 Jahren·discuss
I did absolutely enjoy my time with some onewheels, but I did experience a "sideplant" on a climb when I likely exceeded either the torque of current limit when I absolutely never expected it (and got no warning either). Definitely not fun.

I never had issues when playing with it even at top speed and hitting an obstacle, as the extremely low platform and modest top velocity meant I could always recover by scrambling forward and propelling with the front feet. The real problem happens when not expecting it, like when I was slowly climbing, and even at zero speed the fall can be nasty. I never lowered my attention even for a split second on the onewheel after this.

I never had a chance to try an EUC, but due to how the legs are used for support, I can't see the same as a recover possibility. If the EUC fails, faceplant seems inevitable.

As for the "pushback", the effect on the onewheel is extremely noticeable and didn't feel the need for an additional auditory sound. The problem, as stated by OP, is that you can have failure modes where the motor stops supporting you before "pushback" (or even sound) kicks you in.
ama5322
·vor 3 Jahren·discuss
Not sure what to think of this, as in sarcastic sense...?

It's not like we're discussing trite software, I was just discussing about the "plot device" here where the decoding of an arbitrary language with complex symbology is a central feature. Doesn't it feel "forced" to you in the same way action movies show absolutely unrealistic martial arts moves for the sake of entertainment, or watching most "hackers" in computer movies?

Wouldn't you agree that starting form the absolute basics would be a much sound/quicker way to come to a unambiguous shared vocabulary instead of just showing complex blots to another species and expecting them to decode it? It's also especially odd to me that the somehow the host civilization is doing the decoding part. Considering contact from a supposedly more advanced civilization, I would almost expect the opposite to be true, where the aliens would likely take most of the burden of establishing communication (and probably already did so by watching/listening).

But I get it.. I still enjoyed the movie (like I can still enjoy action movies or computer movies)...
ama5322
·vor 3 Jahren·discuss
I liked the movie and enjoyed the visual pretext of the communication, although it always felt not very credible to me from a logical standpoint.

I would expect two intelligent species intending and willing to communicate to form an increasingly complex communication scheme starting from basic principles.

Of course, this wouldn't have translated into a decent plot by itself.. :/
ama5322
·vor 3 Jahren·discuss
On my machine, when I last tried the various accelerated terminal emulators, I wasn't convinced. At least under plain X, GL context creation adds extra latency when creating new windows (might be different if you use a compositor all the time I guess). In addition, on terminals such as kitty, the startup time of a full new process was really non-negligible I suspect due to the python support.

With a tiling window manager, the built-in notebook/tiling functionality is not really useful (the window manager is more flexible and has universal keybindings) so when looking at the time required to pop a full new window in either single or shared instance they were actually behind regular xterm. Resource usage wasn't stellar either (xterm was still better than most lightweight libvt-based terminals). Couldn't feel much of a latency improvement (again, X without compositor).

I'm sure at full throughput the difference is there, but who is looking at pages of output you can't read? I do keep terminals open for days, but my most common usage case is mostly open window -> run a small session -> close and I got annoyed fast.
ama5322
·vor 3 Jahren·discuss
In my old organization, internal emails (same domain, internally sent) were regularly classified as spam if the UA wasn't outlook. "Clutter" added another circle of hell, as not only you had to explain "check your junk folder" but also "check your clutter folder".

I attributed this to the sheer incompetence of the local admins. The same organization later switched to O365, and the problem remained unchanged.
ama5322
·vor 3 Jahren·discuss
I doubt much if we think decades. Sheet stock has always been used in conjunction to modular systems such as these, via manual or CNC machining (slots and holes are trivial to do). The advantage of a modular system such as these is the ability to build a scaffold with only straight cuts and a few off-the-shelf connectors.

In most cases you need a sheet metal press to form a scaffold out of _just_ sheet metal.

For anything structural (ie: when thickness matters), the price of custom-cut sheet stock is not that competitive anymore.

The price of machine-cut metal sheet has dropped quite a bit the last years though. I think it's filling a new niche, not really replacing the space of modular extrusions.
ama5322
·vor 3 Jahren·discuss
This sounds like the process required for most ISO certifications which sums up to: "pay up, do nothing useful" in my experience.

The extra cost of certification is only very _rarely_ useful. I have to laugh at the "bolster cybersecurity rules to ensure more secure hardware and software products".

It shifts the cost to the company that needs/wants CE.

On one hand, it might actually incentivize companies to pay up for OSS maintenance services, since certification requires a _process_, and not just an end product you can copy without any commitment at all. I don't see this working for small devs though (the paperwork will likely exceed the actual extra revenue in all but the largest projects - so why bother?).

This also puts CE at disadvantage where another market can just do that: steal/clone OSS and skip all the certifications. I'm a lot more worried about this point than the rest.
ama5322
·vor 3 Jahren·discuss
On the same vein, see the _dust_ that can be produced with filled materials: https://www.thregr.org/~wavexx/rnd/20230113-carbon_fibers_3d... (posted on HN 10 days ago https://news.ycombinator.com/item?id=34367420 without comments)
ama5322
·vor 4 Jahren·discuss
This is a big issue.

I don't have a youtube account, and likely never make one. I was bypassing the login wall as long as I could, but ever since login was enforced to watch age-restricted videos, I now simply skip the content.

You'd think this would be a non-issue: I'm mostly following retro-content of this kind. But the amount of age-restricted videos I'm hitting is just baffling. I was following summoning salt, and I was able to watch the video before it got age-restricted. Is there any profanity there? No. If you think there is, you should reconsider your moral views.

I've seen creators over-censor their videos for the same reason, to the point of absurdity. As in this one, I've seen as far as pixelating 8bit 8x8 "nudity" in 90ies games just to be on the safe-end side.

There's no question youtube serves as a big audience window for small content creators. Youtube is amazing for discovery due to the immense choice. However I do support and watch videos outside of youtube (and I'm more and more eager to do so).

I encourage all creators to post on youtube with this attitude in mind.