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Taper Turning Attachment for Myford ML10 Patterns

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Meldonmech: I started on the slotted link arm, milling the side square to provide a datum, then machined the bottom flat. Next there was a problem holding the casting in order to machine the top, I made a rectangular hardwood boss which I screwed to the casting base using two holes I had drilled and tapped in positions where they would be lost when machining the slot. This proved to be a satisfactory method of holding the casting. The top of the casting was machined and the slot marked out. The boss was then attached to the top surface and the casting held in vice while the inner surface of the side was machined parallel. The casting was then held by the side while the slot was cut. The holding of this little casting may seem complex, but that is how I found it, and I didn't really expect it. Had I foreseen it I could have added a holding boss to the pattern.                                                                           Cheers David

Meldonmech:  :update:                Made some progress machining the Main Bracket.    PIC 250  Fettling the edges.           251  Supported on 123 blocks beneath and clamped           252  Fly cutting the slider face, at 1000 rpm, a fine feed and light cuts using a honed round nosed cutter.           255  Keeping everything square to cut the front face.           257  Guard on and chips flying everywhere.                                                                                     Cheers  David

Meldonmech:  :update:   Hi Guys,                                    The first set of pics show my set up for drilling and spot facing the mounting holes. When I came to mark out and drill the mounting holes on the lathe, I had a bit of luck, the lathe position was directly opposite an opening workshop window. This enabled me to work from outside without moving any workshop machinery. The pics show the levelling and clamping for spotting through and drilling and tapping the 10m holes for hex hd screws.                    There was a vertical taper on the bed the bracket was packed out with feeler gauges in the mounting screw positions to ensure a level plane with lathe bed, and two packing pieces made.                                                                                                                    Cheers David

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