Lathe set up for machining large radii using cross slide profile follower

[Clive FosterParticipant @clivefoster55965]

Interesting results from Jason. Clearly shows how important appropriate set up for your machines is.

Clive

[duncan webster 1Participant @duncanwebster1]

Bit of a digression, but for smoke box doors on 2 of my locos I have approximated a curve with 3 low height conical sections. You have to look very closely to tell.

[Nick HughesParticipant @nickhughes97026]

An old book, but some interesting methods.

This link should take you to a PDF Book in my Gallery.

Machining Tapered and Spherical Surfaces

[Charles LamontParticipant @charleslamont71117]

Similar to Ian P’s method, I made a large radius attachment. The only setting up requirement is that the pivoting radius arm is straight when the tool is on centre (unless the work is required to have a central flat, or point, or be toroidal).

[Clive FosterParticipant @clivefoster55965]

Nice job Charles.

Certainly smarter than the one I recall seeing on the internet.

Love the way it keeps all the gubbins at the back out of the way of work holding and swarf. Worth a write up in the magazine I think.

Clive

[bernard towersParticipant @bernardtowers37738]

Yes quite agree its MUCH tidier than mine and like the fact that its out of the way where mine is in an awkward place right under the work

[Andrew CrowParticipant @andrewcrow91475]

<p style=”text-align: left;”>An excellent attachment Charles, I guess most of us could make something similar from photo but I would agree with Clive. It would make a good article for the magazine, certainly better than my template method.</p>
Andy.

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