Member postings for Jon Gibbs

While we're in the EU and in any transition phase it seems unlikely to come our way because, whatever is said about the Commission, it isn't run by a "Highly intelligent" businessman who "went to all the best schools" and thinks "trade wars are easy to win". He seems determined to really "Make America Great Again"

After we leave the EU then it depends what the department led by the "Marvellous Mr Fox" can negotiate for us

Jon

Edited By Jon Gibbs on 04/04/2018 11:16:28

Repeat after me... correlation does not equate to causation

The short answer is that the world post-WWII wanted Plutonium for nuclear weapons which comes from U238 rather than Th232/U233.

It's not trivial and there needs to be REAL money spent on research of these alternative sources before you'll see any reactors.

I'm not sure this is right Neil.

The carbon cost comes about because of the power necessary in creating the materials and in construction was generated using fossil fuels. If we have got rid of carbon-based fuels then there will, by definition, be no carbon cost in materials or manufacture.

More research and money is needed before the world writes off Fusion power [and it's not likely to be cold IMHO]... **LINK**

...but £86M, really? I ask you. Just over 0.01% of UK Government Expenditure. At that rate it's no wonder the research seems to be going nowhere.

This makes interesting reading... **LINK**

...some facts and figures.

Jon

-1

I like the look of it.

We seem to get quite a few birds (often woodies) fly into our windows and knock themselves out. So, if I have a criticism, it might be that the glass could confuse the birds - but perhaps up-close they can see it better from the reflection?

Jon

I may be wrong but I'd expect that the concrete foundations (or ballast offshore) for such massive turbines are likely to create one heck of a carbon deficit before they even start turning.

I'd also prefer other sources of power - I was up the LD Western fells this last weekend and the view out over beyond Barrow was just a mass of windmills and it's arguable whether it's any better than Sellafield IMHO. Undersea noise pollution and bird hazards not withstanding.

Windmills may be great technology in their own right but I think it's no more than a short term band aid.

My fear is that our political classes (e.g. Gove) are more concerned with gestures such as over ivory rather than being concerned about the real issues such as B***it delaying potential progress with the JET Project (as well as other collaborative international projects in fusion energy) where the potential payoffs could be massive.

Jon

Edited By Jon Gibbs on 03/04/2018 11:16:00

+1 for making your own collet chuck and buying a commercial bearing nut.

HH has a really good set of instructions here... **LINK**

Jon

According to this page it's a hub micrometer.....

**LINK**

"Dedicated to measuring the length and thickness of steps in a pipe."

...but I think it's designed for the frame to fit down a bore and allow the measurement of the width of a hub.

Edited By Jon Gibbs on 28/03/2018 16:14:08

Edited By Jon Gibbs on 28/03/2018 16:17:08

I agree with Jon above. Why not keep the Clarkson and perhaps start building up an ER set of collets and holders slow-time if you feel like it?

I got a Clarkson and a Pozilock with my 2nd hand mill but bought an ER32 collet chuck for it later. My Clarkson is just imperial, the Pozilock is metric and imperial and I now have a small set of ER32 collets (16mm, 1/2", 12mm, 10mm and 1/4" ) dedicated for tooling on the mill to accommodate both metric and imperial end mills with less than 0.5mm closure needed. Having 3 chucks means I can keep some tooling in chucks ready which can be an advantage sometimes but not always. I plan to add an 8mm ER32 collet to my mill set soon for carbide 8mm endmills - see Rod's comment above.

I also have a full set of ER32 collets reserved for the lathe and workholding with Stephenson blocks on the mill. Standardizing on ER32 makes sense for my work.

...and don't muck about with the plain ER collet nuts FWIW. Buy bearing ones. They are far easier to tighten properly for both workholding and toolholding.

Just some thoughts and HTH

Jon

Edited By Jon Gibbs on 27/03/2018 17:12:38

Edited By Jon Gibbs on 27/03/2018 17:12:54

Thanks. I stand corrected.

The self-cutting isolators in Screwfix don't do the same thing, unless I read it wrong. I think they create a spur with an isolator valve off a pipe.

With a bit of work, it's quite possible to change wheels without losing balance & alignment or to use a cheap grinder (<£20). Buy some AlOx and diamond cup & dish wheels and you have the best of both worlds.

See Harold Halls pages here and a book recommendation... **LINK**

HTH

Jon

+1 - Happens more often than we like to admit.

Jon

This looks like negligence on Facebook's part rather than maliciousness IMHO but I'm no expert.

CA is very interesting though. It's owned by Robert Mercer, a big Pro-Republican donor, who also owns a firm called AggregateIQ that also worked on Brexit. Steve Bannon was a Vice President of CA who seems to have links with Farage and Arron Banks.

For the details of the web of intrigue between CA, AggregateIQ, Brexit and Trump, this makes good reading...

**LINK**

It seems that CA did some work on Brexit, gratis!!

Facebook is not scary for me because I put none of my life onto their platform but I feel I have a Faustian-like pact with google.

As a gmail and Android user it's clear to me that they trawl through all of my email, see what things I buy, when the deliveries will be made, what flights, hotels and travel I book, what appointments I put in my calendar etc etc etc. It's pretty helpful but at the same time concerning. It's fine if they are confining themselves to the useful things for me but if they're also looking at the opinions I write in my emails and who I receive emails from and their opinions who knows where this could go next.

AC Grayling may not have been the first to look into the work of CA and question their methods but from November 2017 this Youtube video makes interesting watching... **LINK**

Jon

Instead of going all-out electric which would, let's face it, be the most efficient - How about running a 12V compressor and use the boiler as a compressed air tank?

Edited By Jon Gibbs on 20/03/2018 09:57:47

+1 for bearing collet nuts.

Definitely the way to go IMHO.

Jon

Well I think it was most likely to be a University model-shop lathe.

Lucy W's co-presenter (sorry I missed her name) was probably just taking the path of least resistance to getting the tools made in her own Univ model shop.

On the basis that "what'll turn a lot, will turn a little" it makes sense for the University to have just a decent sized lathe.

Jon