CrimeDad

@CrimeDad@lemmy.crimedad.work

Father; husband; mechanical engineer. Posting from my self-hosted Lemmy instance here in beautiful New Jersey. I also post from my Pixelfed instance.

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Accidental cutaway of hole drilled with spade bit. Also is 2x3/4" plywood a good vise jaw idea? (lemmy.world)

I was checking to see how a 3/4" dog hole would look in a vise jaw made from two 3/4" pieces of plywood. Just clamped for the test, but would be glue for the real thing. Interesting to see the hole opened up. And luckily no splitting, but do you think it would work as an actual vise jaw? This is for a Veritas quick release front...

CrimeDad,

I’m not familiar with the term dog hole. You mean like what is shown in this image? image

What is the purpose? How is that you did accidental?

CrimeDad,

Okay I get it now. I think if you do a good job gluing it up it will be okay, but I’m barely a woodworker so don’t listen to me.

CrimeDad,

Not sure if you’re a dad, but you might get some good responses if you cross post this to !dadsplain.

CrimeDad,

I’m sympathetic to this idea, but I feel like the cruelty has to be part of a means to an end, perhaps to discipline the labor that does make it through in order to benefit the employing class.

CrimeDad,

I suppose, but these policies seem kind of bipartisan.

CrimeDad,

Lol I don’t think this post will be the one that finally did it.

CrimeDad,

I’ve got a few bicycles and a tree in my backyard that produces edible nuts.

CrimeDad,

It’s a black walnut tree. The bikes are analog, lol. I prefer the warmer sound.

Solving CAPTCHA for 'Bicycle' -- Include Rider?

I wish to solve CAPTCHA with bicycles, motorcycles etc. in a manner consistent with chaotic good alignment, benevolence, humanitarianism, etc. Shall I select squares that include riders/passengers but not also their conveyance? Was reminded of my uncertainty about this when reading this recent post by @Wilshire to the Technology...

CrimeDad,

I do not include the rider when I get bicycle or motorcycle cycle CAPTCHAs. Sometimes it’s correct, sometimes it’s incorrect.

CrimeDad,

I think part of what makes tracks unusable for regular trains is when the rails become too misaligned. Of course that isn’t an issue for a vehicle that only requires one rail. I kind of like this idea.

CrimeDad,

I do not think the US or Israel actually have good intentions, but I doubt that the pier has anything to do with off-shore oil or gas exploitation. What purpose would it serve when the oil or gas could be brought to a fully developed port that already exists?

What do you think of the term "short king" as a term that's supposed to champion body positivity for men?

Body positivity is such a strange concept to me. There’s efforts to reclaim words while simultaneously calling them bad if used as an insult. Ideally, people wouldn’t be offended by someone describing their body with common descriptors, but socially there is so much value attributed to certain body types that it’s almost...

CrimeDad,

I’m a 5’7” guy and I absolutely support this kind of monarchism. God save the king.

CrimeDad,

The heavy machinery that I am familiar with runs on 3-phase 460VAC. This project sounds complex enough that you should factor in hiring an electrical engineer.

CrimeDad,

If Biden really wanted to stick it to the Chinese auto industry, he’d fund a national build out of hydrogen refueling infrastructure and substantial subsidies for fuel cell production.

CrimeDad,

Yes. Battery powered vehicles are heavy, hazardous, and have significant pollution problems throughout their lifecycle. They’re also dependent on grid uptime because EV charging stations don’t store usable power on site (except in some notorious cases with diesel powered generators). Battery powered EVs don’t offer any benefits over H2 powered vehicles, but they help to extend the tentacles of the deleterious just-in-time paradigm further into our lives.

CrimeDad,

Hydrogen embrittlement is a solved problem. You just design for it. And the grid is not there to support a transition of ICE vehicle fleet to battery electric. A significant build out of infrastructure is required especially for recharging battery powered long haul trucks within reasonable times.

CrimeDad,

No it doesn’t. It’s a well understood, predictable phenomenon that is reasonably addressed in any application involving hydrogen.

CrimeDad,

You’re not really describing a problem with hydrogen powered vehicles. You’re describing the problem with the way we’ve been trying to generate power free of greenhouse gas emissions. As long as the policy makers keep myopically insisting that we only do it with certain renewables, it doesn’t matter if battery electric vehicles are actually more efficient or not. So, on balance, the relative inefficiency of a hydrogen powered fleet is more than made up for by avoiding a massive stream of battery waste that everyone seems to be ignoring.

CrimeDad,

I’m not so concerned about the carbon footprint of battery manufacturing as I am with the broader externalities associated with the battery lifecycle. This article is a few years old, but it provides a relevant, sobering assessment of the problem. Hydrogen powered vehicles make sense now because they avoid that problem. They’re also a better choice for anyone whose driving needs would outpace overnight charging of a BEV at home (or anyone with a living situation that precludes it). The current policy of exclusively transitioning the fleet to BEVs is at best a kludge for bad energy policy.

CrimeDad,

That is not true. I’m working on a hydrogen refueling project right now with a steel, ASME code storage vessel. I asked the manufacturer specifically and they confirmed that hydrogen embrittlement is not a concern and does not affect the lifetime of the vessel.

CrimeDad,

Politicians from bourgeois parties are going to serve bourgeois interests. Nobody should expect anything different from them.

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