Member postings for Circlip

So, back in the sixties when Ingineering was supposed to change to metric in GB., it was hard to do a full change over so one had to become bi-sexual for not only lengths but later in money. Despite working in metric, I still did (and do) go through mental gymnastics converting back or forwards to get a "Feel" for a tangible size. Since dressmaking sizes are taught to the youfs, 25cm means s*d all to me but 250mm is about 10".

Then skipping on a few decades and job changes we go into the electronic industry and find that although the PCB panels are laid out to metric dimensions, the pre forms for things like transistors and ICs are IMPERIAL spacing thanks to Uncle Sams refusal to go metric. No problem for one offs but for thousands? and then having press tools made to punch hundreds of holes through the laminate to mount the components. Given that all measurements should be generated from an X-Y datum point, the use of sub datums to the individual component become more important, so dual dimensioning. This of course for wire ended components, pre Surface mounts. Must have been difficult for the Australians on Metric Day.

Regards Ian.

Another forum (MM) has it standardised on 5/8 x 11 BSW or UNC

Regards Ian.

But But But you have a right to instant gratification, the great god Amazon Prime says so, if not the next day, at times hours after ordered. I just expect things to ARRIVE. Sent some ME items to a mate in the Phillipines six years ago. Still not arrived and he died two years ago.

Regards Ian.

X 20 amplifiers, Surface Barrier transistors AND "Coming soon, a 2" home build TV set." Now that one took many years, a bent crt and an obscure battery pack ans wasn't home build. Surprised he didn't come up with a genuhine Snake Oil recipe.

Regards Ian.

You pays yer money and takes yer choice. May have changed but Waterjet was a bit more expensive. Again, may have changed but the holes would probably only be "spotted". Would imagine water is going to have a cleaner edge due to cold cutting.

Regards Ian.

A shaped charge?

If you get a HDMI lead and plug it into a Tele - - - - - -

Regards Ian

Wonder when the Gates organisation are going to realise than the golden goose is getting close to expiring? Seems that when they get to achieving a reasonably stable platform we get a disruption with yet another O/S together with all the update saga. Now not only a new O/S but you need a new compuwker to run it. Sorry Bill, the goose tasted luverly and I converted its eggs to Britannias

Regards Ian.

Edited By Circlip on 07/09/2021 08:16:40

Yet another ploy for garage repairs, added to the dashboard electronic "Watchdog" Wonder if when EVERY vehicle is electric, we will get "Wrong electrical cable insullation" warning.

Regards Ian.

Ahh, but what you're forgetting Gray is that most on this forum work to NASA standards and have limited time for what used to be a HOBBY. Also from an angled luddite.

Regards Ian

Try this site Bob, :- Model Boat Mayhem - Index

Regards Ian.

Perhaps explaining the difference between the two would give the O/P a clue? As he doesn't have a photo posting that may be difficult.

Regards Ian

"Or log tables if you're some kind of luddite/weirdo/masochist."

I resemble that remark and only work to the "rough" sizes using four figure logs and not super accurate six figure versions, but I can convert ingrish to meterick without having to use t'nternet or Collosus and can still work to a "Proud" sixteenth or a "Shy" thirtysecond and it might not to be to NASA standards of accuracy but it works.

Regards, Wot tiller.

Edited By Circlip on 19/08/2021 09:05:08

"A second hand lathe" with a QCTP and the ability to grind "Old school" tools, Did you really need to ask the questions John????

Regards Ian.

Not all these are false Nathan. Got one from one of these and checked on t'internet which said spoof number. Checked with my bank (Genuine) via phone call and was given spoof number to call so it was cosher, BUT always check with bank before using.

Regards Ian.

You didn't ask for fitting advise Mick, usually fitted using a cup and dome compression tool, thought you only needed diameter sizes. Silicon glue doesn't care whether a flange or not.

Regards Ian.

Yep Duncan, I remember using the hurdy gurdy for doing circlip design calcs and as far as logs were concerned, plenty of class 365s and 465s DMUs hurtlling about with stainless exzorsts.

Regards Ian.

Bet the late Sir John is doing a few rotations, think it was on one of the American sites where he posted a photo of about a foot (Err 305mm - 30.5cm) long straight knurl that looked to the uninitiated like a straight cut fine pitch gear using a home cooked knurl milling tool.

Regards Ian.

"and most importantly wait till SWTSMBO has gone out"

WHY?

Bits tempered or "Blued" in domestic oven, usually on a Sunday AFTER roast done when oven is already hot (Yorkshire cost saving trait). Do you put greasy parts In? Can't think of ANY oven usage that would cause "Contamination" My bits are ALWAYS clean before loading. Do you wait before using the big cooling box?

Regards Ian.

Plenty of room on my Luddite Bench Ramon, I too know there's 25.4mm to the inch and don't find it too difficult to convert fractions. An ex technical director used to tear his hair out when I used LOG tables (Skool edition) to work out angles of bend and blend lengths on Loco exhaust systems despite his Tecky calk. Batteries NEVER run out on log tables. But just think, if you invested in a "Tormack" how much more sailing time you could enjoy by pressing a few buttons and letting the power of electrons generate some of your exotic engines?

Regards Ian.