Help needed for information on a micrometer

[old mart]

A friend of mine had a 350 Bultaco trials bike that would occasionally start backwards, and it was funny to watch him reversing a few yards before chickening...

[old mart]

There has been a thread on the Model Engineer forum in the UK about an unusual micrometer. Any help on this forum as to how it works and is used would...

[old mart]

Having a taper turning attachment on a lathe is nowhere near sensitive enough to work first time with something like a Morse taper. The taper turning...

[old mart]

Edwin, haven't they sent you your new NS-5 to take care of all the little chores?

[old mart]

Not ideal considering the ammount of atmosphere you would be looking through....

[old mart]

It was common on smaller Japanese twin motorcycle engines with 360 degree cranks. One double ended coil and only one set of ignition points. In theory...

[old mart]

Our one which is common in the UK, looks like a front loading washing machine, and there is a quick detachable filter just inside the door. Removing the...

[old mart]

Sounds a lot like 1/8 NPT to me. If the nut was short, a tapered tap could be used and stopped when the thread matched. The NPSM taps with parallel threads...

[old mart]

Most important factor is altitude for optical telescopes, the less atmosphere above you the better. That is why orbital telescopes are better size for...

[old mart]

Nothing to worry about, by the end of the year, Brazil will be the world leader in CO19 deaths, and I, hopefully, will have had my third shot.

[old mart]

I was wrong about the photo size in my post #4, I have just viewed PStechPaul's #2 post without logging on and every picture is thumbnail size, and they...

[old mart]

Thats exactly what I would do if the mating part was available, then the two can fit as tightly or loosely as I want. I once made a 1/2" ACME two...

[old mart]

When I post pictures, I normally choose thumbnails which may be a mistake, because only people who are signed in can see them fullsize. I must remember...

[old mart]

The fourth axis readout is great when there are two methods of adjusting the Z axis.

[old mart]

It sounds much too complicated when everyone just uses one of those little electronic gadgets which clip on the guitar neck. I saw somebody tune all six...

[old mart]

I made a dummy 1 3/4 X 8W spindle nose for the Smart & Brown and simply used some ground pins and a micrometer and matched the two threads. They are...

[old mart]

Are you refering to using the milling cutter to produce the vee of a thread on a shaft which is rotated in a horizontal plane? If so there would be severe...

[old mart]

I bought them for 10 cents on the dollar on ebay, all I know are the makes, WNT and Stellram.

[old mart]

If you use it every time you remove the chuck and use a strap wrench on the chuck, it and the bull gear should last many years....

[old mart]

Printed parts are often honeycombed inside to save material which could weaken them in high stress conditions. In this particular application, the teeth...