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How about the portablenextraction that welders use!

Some morse tapers have a tang to resist spinning and to assist the drive, morse tapers are just a very accurate way of holding tooling.

Changed to SI in my second year, all the machines were converted but alas the drawings were not until they needed re-drawing because of an update, I am probably one of the fortunate few who can think in Imperial (lovely word) or metric I still imagine errors in Imperial, if something is .1 mm...

Sorry this was in respnse to the chiptosser question which on second reading I think I got the wrong end of the stick, he is meaning to taper the key and drive it home, which I have never been a big fan of as they can fret and become loose then they get a whack with a any blunt instrument till...

Tapered shafts and bores commonly have wood-ruff keys and are generally retained by a nut, a tapered key would serve no usefull purpose as one end would be very deep in the shaft depending on taper, a parallel key does the same job, again you have to find a way of keeping the assembly together...

I served my apprentiship with CAV in Rochester UK, for those who dont know they were a major auto parts manufacturer later Lucas Ind now who knows. our first filing job was a 1" cube that was produced just using a file and square it had to be square in all planes and accurate to .005" only using...

HI PTFE used to be used for buttons in model aircraft engines, probably because most had hard chrome liners, still may be of use in builds such as this.

I second IanN last post, the machine only needs to be good enough for the job in hand, yes you could strive for perfection but to maintain that perfection would be a nightmare, as mentioned previously a change in temperature or atmosphere would be enough to cause an issue. when I was working...

Unless you spend major money on a lathe or mill and have a very good maintenance schedule (not just giving it a clean and a squirt of oil) I dought you will achieve the accuaracy you are chasing, in fact I would be suprised if the average machine could achieve that given the variables in...

I aggree with tornitore4,5 back in the day the go faster control line or U control flyers, depending on which side of the pond you are, used Amyl nitrate as an additive to there diesel engines, which you could at that time buy over the counter at the pharmacy, I believe it is now a controlled...

In my youth many years ago, offset dowels were used. With patience very fine adjustments could be made.

A TRICK MY SON TAUGHT ME FOR REMOVING SPLINTER WAS INSTEAD OF USING TWEEZERS OR DIGGING IT OUT, USE YOUR VENIER, OPEN THE JAWS, REST JAWS ON FINGER , CLOSE JAWS ON SPILINTER AND PULL. I THINK IT IS EFFECTIVE BECAUSE YOU CAN GET A GOOD GRIP ON THE SPLINTER AND THE JAWS OF YOUR VERNIER ARE SQUARE...

One of the first things we were tought as apprentice engineers was not under any circumstances to use a file on a lathe, moving or stopped. If the file were to catch on something moving it could shatter with a possible disastrous outcome. whilst on the subjest of files allways have a handle...

When I was in the company fire brigade we had a beutifull Austin Gypsy fire engine complete with very pretty brass pump action fire extinguishers complete with carbon tetra-chloride filling, which was all well and good until it was laid on a storage heater and leaked, fortunately it was spotted...

Try a visit to this sight for what I believe to be very good well explained tutorials :-http://www.weldingtipsandtricks.com/

Another thing to watch out for are fluorescent lights because they flicker and can act like a strobe mainly on grinders or other fast moving tooling. I worked for the Lucas group which had large groups of grinders from small to huge and I believe it had sodium lights, it's surprising what comes...

I was told that if using a power tool and for whatever reason you drop it DO NOT try and catch it. I think that the catches that hold the trigger down on a power tool are a terrible idea apart from when a tool is bench mounted, why should the switch be held in? To me electric planes are an...

I'm going to lecture you now, I think you should consider that it is delicate precision instrument and as such should not be neglected, even a low quality instrument should give long service if looked after. Or is this a result of the disposable society we now suffer with? As for cleaning we...

A previous post said they did not have to worry about rust as they don't use water based coolant, airborne moisture will create rust as will acid in sweat that I know as rusty fingers, one guy I served my time with could actually leave a very good finger print just by touching a surface and...

I didn't say Honda was Chinese I said Honda clones made in China