Boring head then fly cutting – OK or naughty step

[Keith MathesonParticipant @keithmatheson47708]

[Keith MathesonParticipant @keithmatheson47708]

Hi

Another question that may seem a bit daft to some but having just done it I now need to know if it's 'acceptable' practice.

I was boring a hole about 50 MM in a piece of aluminium with a boring head and a cutting tool with an insert. After I had finished cutting the hole to the correct size I thought how much simpler it would be to just wind the cutting tool out a big more and then Just lightly fly cut the top surface ( the flat surface looked like it had been drawn so needed a 'tickle'. Happy with the surface finish. ( it's for a motorcycle fork brace as it happens)

Is this an acceptable short cut or do I need to be sent to the naughty step for miss using my tools. I await all your words of wisdom.

Regards keith MM in SE London

[Martin ConnellyParticipant @martinconnelly55370]

It is said that the proof of the pudding is in the eating. If you have an acceptable result it falls under the "more than one way to skin a cat" category.

Martin C

[Maurice Cox 1Participant @mauricecox1]

Can't see a problem with it. I have gone one stage further on my home made boring head, having fitted a self feed star wheel to the adjusting knob. It enabled be to bore the trunk guide on a Stuart engine, the face the target end to take the cylinder, all at one setting.

Maurice

[Maurice Cox 1Participant @mauricecox1]

Should read "then face". Sorry

Maurice

[OuBallieParticipant @ouballie]

Maurice,

Sounds similar in concept to the design featured in ME or MEW moons ago.

Have you used a round bar secured to the mill/drill that makes contact with the star wheel at each revolution?

Geoff – About to start repairing the Austin's front Mud Wings, then onto the main body at last.

[Nick HulmeParticipant @nickhulme30114]

Given that boring and facing heads are boring heads with some bells and whistles I can't see any reason not to use a boring head for facing

– Nick

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