Re: Quick, Cliff another post of JB's for you to shoot down

Dan,

Ive seen people dig themselves into a hole but Cliff is the first one
Ive seen dumb enough to jump back in and pull the dirt back in over
himself.

Want to see Cliff's head explode? Throw in a G50 S3000.

LOL,
Tom


D Murphy wrote:
Tom,

What he is claiming now is even funnier than his magical "S" codes that
change the state of "M" codes.

He is saying the the spindle will slow down as the tangent point of the
radius approaches center. Because in the case of say a .031" TNR you would
be programming X-.062 to get the center of the radius to X0.

So on Cliff's magical lathe, running at 500 SFM, at X0 your spindle speed
should be infinite. As you approach X-.062 your spindle speed would drop
from infinity to 30,806 rpm.

A huge problem in Cliff world where there are no limits, just fantasy.

Of course when he is programming a one inch diameter on his magical lathe
and his SFM using the same parameters would be off by 29 SFM there is no
problem.

Productivity losses are not a problem in Cliff world. Only the RPM
diiference from infinity to 30,806 rpm.

Just curious, when was the last time you ran a lathe at 30,806 rpm? That
being the rpm it "slowed down" to?

--

Dan

Scopulus est usquequaque nefas

.

Relevant Pages

  • Re: Quick, Cliff another post of JBs for you to shoot down
    ... So on Cliff's magical lathe, running at 500 SFM, at X0 your spindle speed ... Of course when he is programming a one inch diameter on his magical lathe ... Only the RPM ... diiference from infinity to 30,806 rpm. ...
    (alt.machines.cnc)
  • Re: Form tapping blind holes, what coolant?
    ... And of course the IPR is tied to the RPM. ... Guide Bushing machines will at least give you a chance at achieving ... optimum SFM, but it don't always work that way. ... ground brazed carbide tool, because most inserts need friction to cut ...
    (alt.machines.cnc)
  • Re: Sub-Spindle Live Tool Lathes, Worth it or Not?
    ... >>where the cutting forces cause chatter or deflection and staying under ... >>Some forces go down as the SFM goes up. ... > Which, for a given RPM, goes up with the cutter's diameter. ... Chatter and deflection usually won't take you there. ...
    (alt.machines.cnc)
  • RE: solve for a variable
    ... There were 3 variables (sfm, rpm, diameter). ... The problem is that dia is never figured out by the formula, ...
    (microsoft.public.excel.programming)
  • Re: Speeds for turning W
    ... Cliff wrote: ... Anyone have SFM and tool grade ... > - 15 degree back rake angle ...
    (alt.machines.cnc)