Re: How fast is too fast on a Bridgeport?

Jeff,

Factory made CNC knee mills in the B'port size range usually rapid
in the 200 to 350 ipm range. At 1200 ipm (60 x 20 ips) you're much
faster than any of the factory made machines in that size class.

I've worked on machines that approach your speed and it can be
scary. Not much time for the operator to react in case of problems.

Doug

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "washcomp" <jeff@w...> wrote:
> I'm tuning my NEMA 42 stepper motors with MACH2 and find that I
can
> make the table on my Bridgeport move at blindingly scary speeds
(in
> excess of 20 ips). I've slowed it down, but don't have a clue
what
> is an approprite speed and accelleration setting for the X, Y and
Z
> axis? I'm currently running 1000 steps per inch. The table also
> seems to continue to move (from momentum, inertia) after I release
my
> manual jog button. Is this normal?
>
> Thanks and regards,
> Jeff