Cross-slide movement naming?

[OuBallieParticipant @ouballie]

In – Out, Back – Forward,

[OuBallieParticipant @ouballie]

'End of World still Nigh' but need to keep myself occupied while waiting.

I have fitted two DPDT 3-position toggle switches to the FeedRodMotor remote station;

1) Left/Off/Right for the Saddle movement selection,

2) ?/Off/? for the Cross-slide ditto, but how to label it is the question.

Is there a standard for describing the movement?

The 'net has a selection as usual.

The same applies to the Y-axis on a milling machine as well.

This is something I've never bothered with beforehand, but pedant gene is being awkward and in a huff right now.

Geoff – How long does a %#*+ head cold last?

[Ed DuffnerParticipant @edduffner79357]

How about?

– Advance / Off / Retard

– Plunge / Off / Withdraw

– Advance / Off / Withdraw

– In / Off / Out

– Cut / Off / Back-Out

– ^ / Off / v

– / Off /

[Peter G. ShawParticipant @peterg-shaw75338]

I would say "In-OFF-Out" because for most jobs, one moves the the tool "in" to make the cut, and "out" at the end.

Advance, Retard, Plunge all seem to imply a different type of operation to me, although they could apply here. Cut, Back-out & Withdraw would be be more applicable I think than the first three, but overall I would go for the In-Out option.

I have read at least one author talking about "putting the cut on", but I don't recall taking the cut off.

For milling, I would use Forward-OFF-Backward as in Forward = away from you and Backward = towards you. The trouble with milling is that cutting can take place equally well in either direction, whereas in lathework, most work involves either doing something to a longitudinal external diameter, or facing a disc. Cutting an internal diameter does involve cutting the other way round, but in my limited experience is less often done.

Regards,

Peter G Shaw

[David ColwillParticipant @davidcolwill19261]

I would say X- (slide moving away) off X+ and Z- off Z+ but that's just me .

David.

[colin hawesParticipant @colinhawes85982]

The convention used for CNC programming is left-to right axis -X table moves to left…….+X table moves to right

in and out axis -Y table moves out (towards operator)

in and out axis +Y table moves in (away from operator)

Vertical axis +Z tool moves up …………..-Z tool moves down

That's the way I remember it anyway so the cross slide on a lathe would be +/- Y. Colin

[Anonymous]

What Colin describes is true for a CNC mill, but is not true for a lathe. The convention for a CNC lathe is cross travel is X, axial travel is Z and live tooling is specified as the C axis.

Regards,

Andrew

[colin hawesParticipant @colinhawes85982]

Andrew. thank you for the lathe axis description I've only worked with CNC machining centres so I am pleased to learn a little more. It's a useful forum. Colin

[jason udallParticipant @jasonudall57142]

On lathes also x+ leaves more metal as does z+…the z axis is generaly “common” to mills..the pseudo y axis for live tooling/milling is a interpolation of x and c axes…the z y plane can also be programmed “wrapped” round the part…again a interpolation of x z and c..lathes with y axis do exist but these are generally deemed machining centers and these have many axis not conveniently named

[OuBallieParticipant @ouballie]

Thanks for the responses guys, much appreciated.

As usual, the mind boggles at the way English can be used to describe something in a multitude of different ways, and all meaning/describing the same thing.

I will give Ed's arrows a try first, and see how I get on with them.

Geoff – Head cold clearing, so End of World NOT Nigh

[jason udallParticipant @jasonudall57142]

Arrows point ing in the direction of motion…
Yep…no need to remember what it means..so at a moment of stress no chance of error. ..all good

[Howard LewisParticipant @howardlewis46836]

With the Common Cold, the rule is:

If you do nothing, it will go after seven days. If you take medication, you will be rid in a week!

I favour the ideas of arrows, unlikely to be misunderstood.

Howard

[Howard LewisParticipant @howardlewis46836]

With the Common Cold, the rule is:

If you do nothing, it will go after seven days. If you take medication, you will be rid in a week!

I favour the ideas of arrows, unlikely to be misunderstood.

Howard

[OldMetallerParticipant @oldmetaller]

I now have The Hokey Cokey as an earworm…

D'oh!

Regards,

John.

[Oompa LumpaParticipant @oompalumpa34302]

Posted by OldMetaller on 10/10/2014 08:04:06:

I now have The Hokey Cokey as an earworm…

D'oh!

Regards,

John.

I am not impressed John.

You have now given it me.

Bugger.

graham.

[Author]

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