Member postings for Carl Wilson 4

Just for information, you can check the bearing preload quite easily.

On the M250 when out of gear it should take 0.9 to 1.1Nm to turn the spindle if the preload is correct.

This can be checked by wrapping a piece of string around the periphery of your chuck and pulling with a spring balance. The load to get the spindle turning gives the torque.

By way of example:-

Torque is force x distance, the distance in this case being the chuck radius. For a 160mm dia chuck, the radius is 80mm or 0.08m.

The force required to give 0.9Nm at this radius will be 0.9/0.08=11.25N. Dividing by 9.81 to get Kg gives us 1.15Kg. Similarly for 1.1Nm we get 1.4kg. So if your spring balance value is between these figures then all is well.

Not going to happen.

Last reliable one we had my arse. I worked on the Nimrod for many years, both at NMSU and on the line.

They were fantastic aircraft and in a league of their own worldwide in the ASW/SAR field.

I was there today when the P8 landed. It was flanked by two Typhoons that broke as they flew over us, just before Findhorn Bay, then roared away in a sharp banked turn towards Lossie, leaving the P8 to land at Kinloss.

I'd love it if it had been a British built aircraft; it was criminal to scrap the MRA4 in my book. That said, it was still a magnificent sight to see a big aircraft in RAF markings landing and taxiing at Kinloss.

Old mart should have added "on this site". Lot of clever clogs here.

I'm currently restoring one of these machines. Mine is a 1969 version. I normally post on the mig welding forum. You can see what I'm doing there under Harrison Horizontal/Vertical Mill Restoration. It's always good to find someone else who has one of these.

Helium is an excellent shielding gas for tig. Especially good for steel. It increases arc penetration for the same current.

Whether or not BA threads, number or letter drills etc are used in new work today is completely irrelevant.

They are engineering standards and could still be used if required. Not long ago I worked on aircraft where BA and BSF threads, as well as number and letter drill sizes were in use every day.

To claim that these are not engineering standards is a bit misleading.

Of course, if you are building something in your own shop, you have the choice to use any standards you like. Or indeed none at all.

It's utter shite is what it is.

Edited By Carl Wilson 4 on 04/12/2018 13:39:35