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[Mike Burch]

The number of milliradians in a degree is 1000 x 2 x pi / 360, which my calculators all reckon is 17.453.

Perhaps pi has a different value...

[Mike Burch]

Unfortunately that is true, John, but some of us old fogies still fight the good fight by stressing the first syllable in "kilometre", not the...

[Mike Burch]

If using screws. make sure the hole is a good deal bigger than the screw. The polycarbonate will crack if it can't expand and contract, and its rate of...

[Mike Burch]

This might be a bit wide of the mark, but here goes anyway:

You say that 7/16 x 20 almost fits. 7/16" is 11.11mm. 1/4"BSP parallel...

[Mike Burch]

Thanks, Bob. I'd always assumed that the "Delete" button just deleted the edit, not the whole post.. So now I have deleted the deleted post...

[Mike Burch]

I fitted a VFD to my bandsaw's 230v 50Hz half-horse single-phase motor to slow it down for cutting stainless. It was not altogether successful, as below...