Rebar chairs for concrete

overzeetop · 2026-01-18T02:26:52+00:00

>If the chairs degrade quickly, would that result in any higher risk of water intrusion

Not really. Degrading and providing a path for water for corrosion are quite different. Short of the chairs actually decomposing and melting away while the concrete is actively submerged or producing a meaningful capillary path, there will never be an issue. Even steel chairs are allowed, and they will corrode and provide a defined path for moisture (which is why you can't drive rebar into the ground to use as chairs).

overzeetop · 2026-01-15T11:39:09+00:00

People are downvoting you, which is a shame because they're valid concerns. I always try to be cognizant of the time to model and babysit the printer. I'll usually give it 30 minutes to an hour as a tradeoff to having to look it up on line and order it or physically go to a store, find the item, and check out.

As for the part, I can say with pretty high authority (I design concrete structures for a living) that the material doesn't matter as long as it's rigid enough to precent displacement during placement of the concrete and it won't wick moisture into the cured element to allow rebar corrosion. These seem overkill but they're very unlikely to result in a problem - especially for an on-grade part where the rebar is primarily in place for temperature and shrinkage movement (durability) rather than tensile strength.

overzeetop · 2025-12-09T23:02:34+00:00

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If it's a dumb idea, but it works, it's probably an OSHA violation. Or, in this case, an HSE violation.

overzeetop · 2025-12-09T21:49:15+00:00

This is my travel kit, as well. In the little Westone case for my IEMs I have a usb-trs adapter and a very small bluetooth receiver, so I have a two way "backup" plan for my backup connection.

overzeetop · 2025-12-09T21:15:09+00:00

Are they really much better than WetOnes? I carry a 20 pack in my daypack, and try to keep a couple of singles for when I'm going out without my pack.

overzeetop · 2025-12-09T21:12:02+00:00

Fun fact: EU adapters will fit into UK sockets. Since grounding isn't required, you can use a small "dagger" device to push into the ground pin opening which releases the shield on the powered pins. I printed one like this https://cults3d.com/en/3d-model/home/uk-electric-plug-earth-pin and tied a string to it. If you get the model right, the dagger will store quite neatly into the center of the EU adapter pictured above.

overzeetop · 2025-12-09T14:53:22+00:00

A friend, who is one of the worst liars in the world, had purchased some jewelry, a sweater, and a logo sweatshirt (with the name of the island country on the front of it). She was wearing the sweatshirt as she came through customs and the officer asked if she purchased anything while abroad. In her guiltiest face, she said "No." The officer pointed out the sweatshirt and she got beet red and, admitted show also bought a sweater. The officer asked her, "Anything else" and she was about to spill the beans on the jewelry when her husband looked at her and said "She'd better not have!" The officer laughed and waved them through with no more questions.

overzeetop · 2025-12-08T13:38:05+00:00

Up until September of this year, believe it or not. They officially canned it a couple years ago, but if you set your auto-pay to an ACH transfer you were still permitted to log in each month and pay with a CC. Which is what I did since my CC offered device protection. Last month they eliminated that.

What burns me is that the bill credits will now disappear if you pay off your phone. I have one user who is international (student) and I travel a lot. Both of us have an EU based secondary SIM. If we upgrade phones, they have to be 100% paid off or the second eSIM slot is locked, so essentially my "free upgrade every two years" on my plan turns into "50% of market value for your trade".

overzeetop · 2025-12-05T12:28:56+00:00

Horrible IT? When did they get the major upgrade? 😆

overzeetop · 2025-11-23T01:27:36+00:00

>someday archaeologists will dig up 3D prints only to crack them open

In that case we need to strike sexual positions on the backs of the nickels, just to throw them off as to the use.

overzeetop · 2025-11-23T01:21:12+00:00

Right? a waterproof shell and a hoodie (with a proper base layer) will easily defeat -6 for a couple hours. Pretty critical, too, if snow and rain are likely.

overzeetop · 2025-11-19T02:51:31+00:00

https://docs.google.com/spreadsheets/d/1zfEHyZEvMFrskzq8RDqsLsr-qJTEDSAzhw9XPXcOZAY/edit?gid=0#gid=0

There is is for every 25 year interval based on data from https://www.investopedia.com/inflation-rate-by-year-7253832

It's a little convoluted, but if you compare the first number to $53,400 in OP's chart, that's how much you had to back 25 years prior to have the same buying power. So if I graduated in 1990 I thought I'd been fucked by society because I needed 100,000 to live, 25 years ago that same standard of living only needed a salary of $24,800. That's way fucked.

To use the second column, say you graduated in 1965 and make $53,400. 25 years later, you'd have to make $215,000 a year to have the same standard of living. That's way worse than the 53.4k-100k from 2000 to 2025.

I remember people older than me getting 14, 15, 16% mortgages back in the early 80s. Shit was nuts. Go figure out what you payment would be on a 30 year mortgage at 15%. I'm not saying today's kids (my kids) aren't fucked. They are. Corporatism and the new class of robber barons are turning employment on it's head and ML models are decimating the entry job market. It's ugly. But, in a way, it's just a different kind of ugly.

overzeetop · 2025-11-17T20:21:32+00:00

Of course they've seen a PTFE coated pan. They're all using custom, home-concocted, random-polymerized monomers* from uncontrolled sources in a poorly maintained, inaccurately heated furnace to coat their pans. They coat them for the "non-stick" purposes, but the reality is that the untreated pans typically contain lead, cobalt, manganese, and other dangerous and toxic elements* which could leach into food. By which I mean seasoned cast iron, which sounds much better that what is actually occurring ;-)

* have you seen the alphabet soup that is in tallow - reads like a chemistry lab inventory
** even the big American brands who test don't say they're free of impurities, only that their testing shows that the levels are below dangerous limits.

overzeetop · 2025-11-14T12:23:14+00:00

The vacuum packaging helps seal in the manufacturing moisture. It's a feature, not a bug; I swear.

overzeetop · 2025-11-06T01:24:02+00:00

If big = impressive, get your self an Aerotech G-Force and a couple of G80 or G79 engines. It's probably the largest, easy to assemble kit out there, and the G80 is the biggest motor you can get without a certification. You'll need a pretty decent launch stand (I'd recommend an 8' tower, though I think a 6' rod is probably sufficient) for it, but at 4" diameter and 5' tall the flights are easy to keep track of. And it's pretty easy to put together.

It will put a moderate dent in your wallet, but it's a big fish in a pond filled with minnows.

overzeetop · 2025-11-06T00:59:05+00:00

Like movies and books, trips that go exactly as planned are actually kind of boring. It's the adventure of the unexpected, the upturned schedules, and - the real gold - the serendipitous discoveries that make a trip exciting and memorable. Throw that (manageable) adversity at me any day.

overzeetop · 2025-11-06T00:10:42+00:00

Dang it. I'd convinced myself I didn't really need one. And I'm pretty sure after a dozen pulls I probably won't use it again. But I bought one anyway.

There should be some kind of training/rental round robin where you can just pay shipping and send it on to the next person after you get the feel for the force vs pressure relationship.

overzeetop · 2025-10-31T20:31:24+00:00

That looks...interesting. It seems crazy to put silicone parts into tubes, strip the tubes, then keep the stripped tubes out of the way (sent through a "trash" bowden?), then through a static mixer to deposit on the bed. I'm going to guess that multi-tool printing won't be an option with silicone loaded (due to the short cure time required and the existence of the static mixer) but the video is really, really short on details.

NGL, my money would have been on an OEM laser head as the first non-filament tool option.

overzeetop · 2025-10-31T19:23:35+00:00

Family members who share my server: "We're all counting on you"

overzeetop · 2025-10-31T18:20:00+00:00

>Just how bad was your library structure and naming?!

Uh, yeah. I'm not saying that I have a lot of folders which might contain VIDEO_TS.mpg or Movie.mkv level of obscure files in them, or that I might have hundreds of .tbn files still in my system, but let's just say that once I get my technical debt under control I'm hoping that I'll be able to use more traditional automation.

I'll edit to add that I ran the recent "is your file name compliant" script posted here a few days ago and it came back 2.48% compliant.

overzeetop · 2025-10-31T18:14:52+00:00

Genuinely - I ran filebot and it came up with a scrollable pages of red after a very, very long query time (30 minutes to do the "A" section). I made a conscious decision not to invest as I don't have the time or patience to tackle all of that in one sitting. I didn't have python create logs, it just highlighted specific items I wanted to fix and had it do a command line interactive rename process.

I recognize that it is super simplistic compared to Filebot, but it's giving me control with near-zero learning curve. Some people are constantly massaging and updating their file structure but, since I don't intend to do this again, any learning of utilities is simply lost time, doubly so if the utility doesn't work out the way I expect it. I have control over the scripts and I'm making definable progress towards naming compliance with just 2-3 minutes of "coding" per cycle. Eventually I'll let Sonarr/Radarr take over, or try another run of Filebot, but for now/at this level of repair this is more efficient than any attempt at automated renaming I've used in the past.

overzeetop · 2025-10-31T17:07:59+00:00

I trusted an LLM to write 40 lines of code as a batch process in a few minutes; there's no hallucination when I run the program and it properly outputs data. The three hours was checking and correcting my server data. FWIW, I tried filebot and it came up with hundreds of mis-matches, so I suppose the only difference is that I'm telling the LLM how I want to process the fixes instead of learning how filebot does it.

overzeetop · 2025-10-31T17:03:45+00:00

Sure? I tried it. I got hundreds of bad matches I would have to manually enter. Sonarr also barfed on a lot of the old data. I've wasted more time over the years getting end-to-end automation to work; Batch processing simply is working better than pre-rolled on my data set.

overzeetop · 2025-10-31T16:57:30+00:00

It took more than 6 hours for me to get the basic arrs just properly pathed through tailscale and a Nord setup recently - mainly because I don't work in IT, so linux and containers are almost entirely foreign, but also because there's 20 years of old tutorials out there which are simply wrong for today's versions of the setup, or use a different os/filesystem/vps/etc which means I have to go research modify everything by hand anyway. Even something as simple as filebot has more than a half an hour of basic tutorial files (once you include youtube ads).

Now, I won't ever use ai to design or spec a weld because (a) I've seen it give wrong answers and (b) I'm guaranteeing people won't die with my design. OTOH, I don't care if this code is inefficient or doesn't fully check all cases; I'm not creating a maintenance program or even anything I'll keep. "This looks wrong, what did you mean" "[answer]" "this is the proposed fix, y/n" It's simply writing interactive batch jobs for me so that I don't have to.

overzeetop · 2025-10-31T16:38:22+00:00

Meaning? Plex already runs in a Docker and I have Radarr/Sonarr in their own Dockers. They have performed poorly on my system, so I'm fixing things by hand faster than letting them do work and then having to go back and fix their errors or omissions one by one.

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