Aciera F4 Old/New style Slotting attachment

Hi All,

First post in this area!

I have a 'square style' F4 which I believe is 1970's. I've had it a couple of years, and today I attempted to fit the slotting attachment which I bought at auction some while after the machine. It slides into the head-stock, but before the drive spline engages it seems to hit the end of the 30INT horizontal drive. The slotting attachment is probably from an earlier 'round style' machine.

Am I doing something wrong or are these known to be incompatible?



Does anyone have a picture of the fitting end of a later type slotting attachment that I could compare?

Thanks,
Martin

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