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morbidcactus

@ morbidcactus @lemmy.ca

Posts
3
Comments
155
Joined
3 yr. ago

  • datacenter liquid cooling solution

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  • Industrial cooling towers are usually evaporative in my experience, smaller ones are large fans moving air over a stack of slats that the return water is sprayed or piped over and the collects in well for recirculation, larger ones afaik (like what you'd see at power plants) operate the same idea. Top ups and water chemistry is all automated.

    Those systems have operation wide cooling loops that individual pieces of equipment tap into, some stuff uses it directly (see that with things like industrial furnaces) but smaller stuff or stuff that's sensitive you'll see heat exchangers and even then the server & PLC rooms were all air cooled, the air cons for them were all tied into the cooling water loops though.

    From a maintenance POV though, way easier to air cool, totally seen motor drive racks with failed cooling fans that have had really powerful external blowers rigged up to keep them going to the next maintenance window. Yeah, industrial POV but similar idea.

  • Mouse recommendations

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  • I've used the wired equivalent of the Logitech g502 for a while, and my partner has the wireless one, I liked them as well. I've used Logitech, steel series, Razer and Saitek mice over the years, started with a Logitech G7, and there's a reason I went back to Logitech mice after using some of the others. Imo you can't really go wrong with one of their midrange models with a decent sensor, won't break the bank and found them fairly reliable.

    As a bit of an alternate, I know you prefer wireless, but I've been using a Ploopy Mouse for few months now. I don't do online fps stuff anymore, but was great for FPSs (some boomer shooters mainly) and RPGs it's solid, been playing a lot of Diablo 2 recently and it's great. It runs qmk so it's customisable however you want, sensor seems decent and the entire thing is open source, designed for user serviceability.

  • What's a regional pronunciation of a word that seems normal to you but is weird to people from other parts of the country?

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  • It's apparently the only thing named for that dude pronounced that way too, Dalhousie University as an example. Wiki page has an etymology section that has some suggestions as to why, it'd sound weird to me though pronounced the other way.

  • When A Good Show Has A Bad Ending

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  • I remember reading all the alleged leaks on freefolk for s8, couldn't believe they'd be accurate, some of them just seemed too dumb to be real.

    By e3, so much of them had been correct (well, at least from the parts of that episode I could see), I just embraced it. Was a far more enjoyable experience for me, at least got me through the remainder of it. Cracks showed before s8 (once they ran out of book material I think is when it stated), but there was so much dumb shit that final season.

    We used to do rewatches, my partner hasn't touched it since then and has said she probably never will, s8 just ruined it for her (she also leaned into the spoilers after e3)

  • Rail Barons Push For Robots To Conduct Track Inspections

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  • Largely yeah, not every pipeline is pigable (but even a decade ago when I was in the industry that was being worked on, saw lots of different ideas), but if you can an ILI tool can give you an absolute tonne of data.

  • Anubis, The Opensource Defender Against AI Bots: I fight bots in my free time

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  • Afaik, almost every browser uses "Mozilla/5.0" as part of the user agent, Mozilla mentions it as well in developer docs about User agents, it's a historical compatibility thing apparently.

  • How many of you microwave water for tea?

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  • So, I like loose leaf when I can, but will totally use bags, I grew up with Tetley so that'll always be the tea I'll use for some basic iced tea. Yorkshire gold reminds me a lot of Red Rose, which is the other really common bag tea (and I swear is what my grandmother uses for her water intake). Recently, have some bags from Genuine Tea, it's a Canadian brand and some of their blends are pretty good, there's an elderberry hibiscus one that's great to just toss a few bags in a pitcher and cold steep.

    Going to mention more types of teas rather than brands that I've liked in the past, there's a lot of variety and tea (like quality coffee) can totally have a wide range of flavours depending on region, age, processing etc. By no means an expert, I just like trying things.

    I like Lapsang Souchong sometimes, can have a strong smoky flavour, don't have any more but we had some first flush Darjeeling tea that was fantastic. I had some nice white tea as well, but you need to be careful, turns super unpleasant if you over steep it or have the water too hot, should be floral and lightly fruity, not pine needles.

    Otherwise, I personally like oolong and pu'erh tea the best. I tend to brew tea quick with an excess of leaves, but you'll use the same tea leaves multiple times. Pu'erh can have some earthy subtle flavours, and apparently totally changes as it ages (it's fermented if I recall).

  • How to dry silica gel

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  • I do this, I have a toaster oven that lives in my garage solely for shop use. Have some foil to act as a bit of a heat deflector, seems to work well enough.

  • Buying some time

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  • I wanna say it was something that showed up on my clipboard from KDE connect, may have been part of an error message or status message, should have kept it for preservation purposes

  • Buying some time

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  • I have zero idea, apparently I managed to pocket comment somehow.

  • Buying some time

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  • Finally found a way to get Garolite print beds for my Prusa's

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  • Spool3D in Calgary sells sheets of FR4 (the flame resistant version of G10) that are bonded to spring steel sheets. I use with a few drops of the nano polymer adhesive they sell but would probably be fine without (A few drops in IPA seems to do the trick for ABS, lets me spread it extremely thin). I used Buildtak for a while and their surfaces are great, but this was a lot cheaper and extremely resistant, plus I like the surface finish it gives (Also I can source domestically, partly the reason I switched)

  • What game changing item*s can you buy for $100 or less?

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  • My partner and I were concerned about that originally but it's really a non issue for either of us, it's still way better than not having one.

  • I designed and made a thing!

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  • I did some testing for some parts for my dad, he keeps bees and lost a shaft support for one of his tools when he was reassembling it, he whipped up a replacement and fired me the stl when I was talking about my printers.

    Printing with the shaft in the z needed a lot of supports,

    laying it on its "back" was by far the easiest, outside of the support looked a little gross, could have benefitted from supports. Did them all in petg, gave them all to him just so he can get a feel for what 3D printed parts look like as he's interested in getting one himself (trying to sell him on a v0 if he's not sure, but kinda thinking about doing a trident)

  • Why Microsoft open sourced PowerShell and ported it to Linux

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  • If I recall the Verb-Noun idea is supposed to make it clear what is happening, take a look through stuff like the approved verbs for defining cmdlets. There's aliases and stuff for sure for example I think ls is an aliases for Get-ChildItem in PowerShell.

    It's supposed to make it so you don't necessarily need to look things up, need to do something to an item? Well you can Copy, Remove, Rename, Move etc, and while yeah that's a super basic example that you know the equivalent linux commands for, the concept is supposed to apply everywhere. Now, whether or not people follow the guidelines is probably another story.

    I don't really hate shell scripting, feel like they all have their place, complex stuff though is nicer in straight PowerShell than bash IMO, but I'm fine using either.

  • Help please: heating block gooed up with PLA

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  • It's a right of passage, I switched all my hotends to fixed blocks, accidentally loosened the block once on the older style hotend after torquing correctly and enveloped the thing in petg, it kinda vitrified too or something in the heat, was like glass so no getting that off.

    Generally, blobs off of your hotend, estop it and take a look, that's a huge tell for a leak.

    Worth keeping a few spares around, at least for stuff like nozzles, blocks, heaters and probes.

  • cannot get an even first layer with a voron trident

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  • Yeah, makes sense based on where the sensor is, my heater didn't have a thermocouple on it so I drilled a hole for a thermistor midplate, it's super slow to respond is the downside but in theory it should be accurate enough.

    I don't have experience with the bambu, in theory everything will experience thermal expansion but for the voron setup, the bimetallic construction is some of the issue, they have different thermal expansion properties so it can cause deflections. Part quality will vary wildly depending on sourcing too, vorons are very diy and open as the draw, but there's just so much variability from sourcing, mods, assembly etc.

  • Bed slinger vs coreXY 3D printer

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  • I have z braces on my bear modded mk3s too, things reliable as heck and easy to service.

  • cannot get an even first layer with a voron trident

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  • It looked like you have a textured sheet? 0.2 mm variation over the entire built area isn't huge, might be exaggerating it.

    How much of a heat soak? If you're going to the edge, let that sit for at least an hour, preferably more, look at Ellis' page on thermal expansion, frame will absolutely expand. I use backers on my 2.4, gantry is giant bimetallic strip, backers do seem to help with that. Klipper does have the ability to correct for this as well, in that link. I do also have a kinematic bed mount (it's coupled loosely to the frame, basically gives the bed room to expand), which again does seem to help, but I'd personally say heat soak is the first thing to do to achieve consistency.

    And to echo others, degrease your bed with dish soap & water (unless your surface can be damaged, Buildtak that's a no, don't of that for example). If that's a textured sheet, may need to give a bit more of a squish, but get it good and clean first. Ellis has some solid 1st layer calibration and troubleshooting guides to go through. For pei, personally I've found I needed to rough up the surface a bit with a brass brush, I don't love pei on my voron, usually use buildtak but have had really good results with the fire resistant version of garolite.

    Edit: read up on your probe, eddy current based? Sounds really interesting, my first point is probably moot, though possible you could be picking up the texture or if you have strong magnets it could affect it (my bed has an array of strong round magnets, seen others that are just a magnetic sheet), the do call that out in their FAQ.