O/T Lathe Spindle Directions

[Ron Branch @ 5th Axis]

Well I wish him luck on the corporate thing we just went through that with a product I have designed. Still waiting for the shoe to drop on that.

 

I was niether upset or made mad about his comments just felt there is always many ways to get a point across there is the direct way there is the indirect way. It is always easy to jump on a point that is negative verses one that is postive in the ideas that a person has. I merly pointed out a statment to his statement. In no way did I imply that he's wrong to do it a certain way.

 

I was in that 10 percent that used left hand tools but I also found that when doing production runs that envloved right hand threads and I always liked cutting them from front to back not back to front it would keep from changing spindle speeds since I ran it balls to the wall smoking and belling the machine point I always ran people out of the building. It is not a scary thought just one of them things you see like people who still only run Highspeed tooling in CNC mills. I might get people who only do this to think about doing it differently by showing them a better way not a way that pushs it to the point of scracism.

 

Again just my 2 cents worth

 

Crazy Millman

[PE @ IHS]

My apologies for sounding dumb. The original post asked about the difference between left hand and right hand tools, and having to reverse the spindle direction. I (correctly) stated the difference between the tools. It is a no-brainer that if you use L/H instead of R/H holders, you can substitute the tools for each other, by reversing the spindle direction. That was not in the original question, however.

 

I presumed that the poster was a lathe newbie and asked for an explanation between left hand and right hand tools only.

[Ron Branch @ 5th Axis]

Dan M had in his post this comment:

quote:

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If anyone could shed some light on this subject I would appreciate it.

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So Peter we took it as he was asking in such a way as to what we thought was good either or and what we did was to point out good reasons for either way or it was attempted by me. I just felt like it was not needed to do so in a negative way for explainations and refering to things that go on with such points as to possible be picked up by some people as not pleasant.

 

Crazy millman

[Mick]

Quote:

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I have to laugh at this topic, as this was a great issue for us in the last 3 years

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Grant,

 

It went back further than that. They were arguing about it before you were a twinkle in your Production Managers in tray Well, at least that would be about 10 odd years ago.

 

I can recall arguing with an old supervisor, and his bearded plant engineer (hehe...we know the one) about the merits of either tool mounting. One thing I always found interesting, was that the steady rollers didn't suffer from "chip insertion" any where near as much when the tools were inverted (running M03). I guess gravity took care of it.

 

FWIW, My personal preference is to run tools inverted (ie, run M03)

 

Cheers,

 

Mick

[dan m]

Peter,

I'm not a newbie at this i've been doing it for 16 years. Everywhere I ever worked we used right handed tools and I never gave much thought to switching to left handed tools. When the question of switching to left handed came up i could not think of a reason why not but i figured the right handed tools were forward and left handed were reversed and there had to be a reason for it. With all the wisdom in this forum and no one where i work having a thought why this was i figured i would post the question here and get some intelligent responses on it which i did. I appreciate everyones input on this subject.

 

Dan

[McRae]

Ah... A mind one stretched, like a balloon will never return to its original shape.

 

Think about it - Think about it, that is all I want to happen.

 

Two Days left here at the home office - see you guys next week.

 

(Peter, thanks for taking the high road!)