On Feb 5, 7:26*pm, wrote:
I am trying to cut a morse taper shaft 3MT and 2MT and have setup the
topslide to what I thought was the correct angle, but he taper seems
slightly off. Is there any one who has turned a morse taper, that can
offer advice??. I know that morse taper reamers are available for
making or tidying up MT sockets, is there anything for finish cutting
MT shafts????.

Cheers

There is nothing I've ever heard of for reaming or cleaning up male
Morse taper. It is handy to have a spare Morse taper socket to use to
test the workpiece with spotting blue - much handier than trying it in
the lathe spindle.

I've turned quite a few Morse tapers. I do them by holding the
workpiece between centers and ofsetting the tailstock. It works
better than angling the compound because you can easily make minor
adjustments to the tailstock offset. It's more difficult to make
minor adjustments to the compound angle.

Some people have used a boring head in the tailstock to hold the dead
center, which I've never tried but sounds good. Use the boring head
to make the offset adjustments.

One thing to keep in mind when turning a shallow taper like this is
that a very small change in diameter makes a big difference in how
deep the taper goes into its socket. It's easy to go too far.

While skilled machinists frown at the use of files to bring parts to
final size, I think it's a valid way to make very minor final
adjustments to a taper.

John Martin