Member postings for Ches Green UK

Part Two, the new nut

As always, very good stuff from CEE.

The filming and editing gets better and better with each video.

The camera person (Karen) is always looking for new ways to keep the viewer's interest, plus keeping the older stand-bys eg looking down the bore.

I wonder how close she gets to the action?... but I don't see Kurtis letting her endanger herself. It would be interesting to see a 'How we make these videos' from the CEE team.

Ches

Edited By Ches Green UK on 30/06/2023 13:09:13

Edited By Ches Green UK on 30/06/2023 13:10:02

Aren't the prices he is quoting in Australian Dollars? ie 1A$ = £0.52 = US$0.67

Ches

I can't imagine OceanGate has a huge amount of money to pay out, if found guilty.

I wonder if OceanGate managed (somehow) to convince an insurance company to give them cover.

If so, then the lawyers will target the insurance company, but insurance companies are well versed at repelling boarders.

Ches

Is the USCG in charge of coordinating the rescue mission, or is it a bit of a free for all?

And why has an aircraft carrying a UK team of deepwater rescue experts (+ equipment) sat on the tarmac since Monday awaiting 'paperwork' clearance? .... https://www.telegraph.co.uk/world-news/2023/06/20/missing-submarine-titan-titanic-rescue-mission-blocked/

I know this is a rare event, but at least let anyone who might be able to contribute get as close to the scene as quickly as possible, and then assess if they can contribute.

Ches

Fast Mouse + Maze (25 mins) .... https://www.youtube.com/watch?v=ZMQbHMgK2rw

I have to say, those things are really fast at moving, and at calculating.

I wonder if ChatGPT, or it's offspring, will bring any improvements to this technical sport?

Ches

A bit of light relief regarding EVs -v- ICE pollution .... https://www.youtube.com/watch?v=bQ8zePnOlF8 ... there may be a longer version somewhere on YouTube.

Her heart is definitely in the right place but, as others have mentioned here, to have credibility one needs to have a reasonable understanding of the subject.

Still, I suspect there is no such thing as bad PR ...so at the end of the day she has probably achieved way more than she had hoped when she kinda aggressively knocked on his car window.

Ches

Edit: It's almost too good to be true....I don't think they are actors, but the two of them should start their own TV/YT series on various environmental subjects

Edited By Ches Green UK on 12/06/2023 10:41:45

Duncan,

Interesting point about the drier, higher pressure in the pipes.

Whilst on the subject of Germany, they will get hit hard by the move to EVs - https://recruitonomics.com/the-decline-of-car-manufacturing-is-hurting-the-german-economy/ The German car manufacturers are now doing everything they can to delay the inevitable, but I feel they will lose.

I thing the internal combustion engine is a magnificent example of how humans can invent and develop a very useful device over many decades, but it does have it's drawbacks.

Ches

Concerns about hydrogen leakage

Yes, there does seem to be a potential issue regarding Hydrogen leakage, if it is used on a large scale.

Here's an article on sealing Hydrogen equipment .... https://www.oemoffhighway.com/engines/article/22418740/parker-hannifin-corp-designing-a-leakfree-system-with-hydrogen

Anyway, the publishers of the report, Columbia/SIPA's 'Center on Global Energy Policy' have some interesting 'partners' .... https://www.energypolicy.columbia.edu/about-us/our-partners/

Ches

[PS: Maybe the gas fed to houses in the 1830s also leaked but the users didn't notice and/or were not informed.]

I think the Japanese car manufactures and their Government went all-in on Hydrogen a few years back. They are finding it very difficult to do a 180 on that decision.

Hydrogen may have it's uses eg in larger vehicles such as those JCB make. But my limited understanding is that Hydrogen is expensive to turn in to a compact, transportable fuel.

My main hope is to remove the highly toxic fumes that belch out of the exhaust pipes of ICE cars in to our streets, homes and then lungs, and if EVs or Hydrogen power stops that, then great.

BigOil has known for many decades the health hazards their products cause but has kept quiet - profits come first.

We will still have the issue of particles from tyre rubber and brake dust (to a lesser extent) getting in to the air we breathe, but at least one of the main health hazards will be gone.

Ches

PS: A link to the hazards of fossil fuels ....

Oil firms knew decades ago fossil fuels posed grave health risks, files reveal
https://www.theguardian.com/environment/2021/mar/18/oil-industry-fossil-fuels-air-pollution-documents

Edited By Ches Green UK on 11/06/2023 09:17:16

Steve,

I guess he'll remain 'Junior' for the rest of his career doing stuff like that. I'd have thought he'd have at least done a quick check on the 5 cases to see if they were actually real. Thankfully the Judge had his wits about him.

I think ChatGPT is at the stage where it is learning how to learn....it's still basically a child.

Give it a year or two, powerful enough hardware to run on, and access to the bulk of the web and I suspect we are in for a few surprises, maybe not all good.

I can see two scenarios where it could cause humans problems...

a) it gets in to the hands of bad actors, which it will, and

b) it goes feral, which is possibly the bigger worry.

Ches

....Stephen Wolfram, who gives an explanation of what is going on under the covers.

I read the article last night and it was quite eye opening..... https://writings.stephenwolfram.com/2023/02/what-is-chatgpt-doing-and-why-does-it-work/

A number of times the author made comments such as ....

What determines this structure? Ultimately it’s presumably some “neural net encoding” of features of human language. But as of now, what those features might be is quite unknown. In effect, we’re “opening up the brain of ChatGPT” (or at least GPT-2) and discovering, yes, it’s complicated in there, and we don’t understand it—even though in the end it’s producing recognizable human language.

He was hinting, I think, that ChatGPT possibly operates in a similar way to how the human brain might function in some areas.

Ches

Hopper,

Yes, I was off on a slight tangent...there are humans no doubt using AI generated info to punch above their weight on media platforms.

I think the longer term issue will be when AI bots (rather than humans) use media platforms to exercise 'thought control' over those that use media.

Ches

....internet social media will become such a melee of these warring AI-generated rubbish posts it will all be rendered a meaningless echo chamber....

I think you are correct. At the moment there are dumb bots directing the conversation on a lot of media platforms, and they can usually be spotted. But once AI bots enter the playing field then we may as well give up.

If there was a way for the platform to weed out the AI bots then fine, but I can't see how that is possible. They will always be one step ahead of any policing.

Ches

Paul,

Good link to the Parker design details.

I used BS 1806 and a Gaco O-Ring Design manual back in the day,. I believe BS 1806 has now been replaced by BS ISO 3601.

Modern tap O Ring sealing seems (to me) to be a law unto itself. I had to replace a leaking bathroom sink tap cartridge with the O Ring on it's bottom face, a few years ago. Problem was, the housing the cartridge mated/sealed with was a plastic moulding with an irregular sealing surface. I don't think these parts are that accurately made, at least from certain sources.

Ches

Edited By Ches Green UK on 25/05/2023 09:00:46

Edited By Ches Green UK on 25/05/2023 09:01:09

precision pointing device

Ah, got it, thanks.

Thanks.

Ches

Michael,

It sounds like you have evolved a system that works for you and does what you need. Can't ask for more

I've now watched a few tablet + CAD videos on YT eg .... https://www.youtube.com/watch?v=8MrFuhv6mcE

I like the way it seems possible to roughly draw rectangles, squares, curved objects and the s/w can automatically convert those napkin sketches into regular shapes....but there does seem to still be a lot of button presses and drop-down menus rapidly coming and going behind the scenes.

In my ideal world the design, say a model steam engine, could roughly be sketched out on the tablet and then I press a single button and the s/w makes a best guess at what I want and turns it instantly in to a proper drawing. I can tweak dimensions etc - but most of the work is now done.

Anyway, back to reality....it seeems that Alibre is not that compatible with tablets, if at all. So I'll be sticking with my mouse whilst I begin my slow journey into the Alibre world.

Ches.

Ady, Dave,

Thanks for the info.

Regarding mouse mats, I use an XXL sized one which the Logitech KB and mouse sit on....it is an Aukey 900mm x 400mm x 3mm, similar to this .... https://www.amazon.co.uk/Anpollo-900x400x3mm-Extended-Water-Resistant-Special-Textured/dp/B07NZLXHC8/ref=sr_1_3?keywords=aukey+mouse+pad&qid=1684662937&sr=8-3

It is about 6yrs old and has weathered well. I occasionally 'Hoover' it

Ches

Wacom digitising tablet on the Mac

Thanks. I have next to no experience of using input devices for CAD work.

I suppose, to some extent, the input device(s) chosen are what one is used to, what best fits that particular CAD s/w, whether it's for hobbyist/professional use and budget.

As someone on the first rung of the CAD ladder I will stick with my Logitech mouse for now, but if I climb further up then maybe I might consider an other input method.

Ches

Yes, that was interesting.

And it makes me wonder what input devices/setup folks here use for their CAD work?

I use the Logitech M510 mouse (with Forward/Back buttons) for my daily stuff, and then soon on my travels in to Alibre Atom 3D. I find the Logitech s/w to be a bit flakey at times.

[This chap surveys some input devices, but not specifically for Engineering .... https://www.youtube.com/watch?v=Bn3V3Wa23lI]

Ches

I think Joe's background is small batch, high accuracy medical devices. So he is probably used to making jigs for a lot of his work, and he will have a decent supply of stock materials at hand.

So he does what he knows, and he likes to challenge himself. I certainly didn't do my 10V in any way remotely close to how Joe does it, but his video series is still fascinating to watch.

Ches