Mill Turning on the Tormach PCNC440

I just dared to hit run on my first attempt at Mill Turning.  I need to qualify this in that the first run I was cutting air above the set up.   It looked OK so I put the real material in the spindle and I got a turned part as designed in Fusion 360.   I didn’t part it off and you can see the result below.

Mill Turning set up for first trial run

Mill Turning is where you place the material you want to shape (usually a rod of some kind) in the mill spindle instead of a milling tool.   The tools are mounted on the milling table (see above in the vice) and are completely stationary but move via the actions of the table in the X axis and the spindle in Z.   The software is conned into thinking the material is really a milling tool and that the tools are the material.

It has taken me the best part of a week to work out how to model this in Fusion 360 and I have been helped enormously by watching Jason Hughes on YouTube.  It involves allocating a different Work Coordinate for the location of each tool.

If I can get this more streamlined and get some better lathe tooling in place to support it, then I will be able to turn clock pillars.   This was the last stumbling block in moving to CNC assisted clockmaking.

Tonight I am a very happy bunny.  A glass or two of Merlot with dinner perhaps ?

Update – For a full write up on the process and how I got there go to my mill turning page and download the pdf.

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