Re: [CAD_CAM_EDM_DRO] newbie Question

Hello John,

The motor is 2 Hp, belt driven with 9 speeds from 220 - 2400. this may
change once i take delivery of the mill, i have a friend who is going to
make a VSD for the motor.
Mostly to be used for aluminium but very occasionally steels and titanium.
only small pieces tho. Not sure on the resolution of the scales as i havent
taken delivery as yet.
Max size fo cnc work would be a 10mm end mill.
Ken

----- Original Message -----
From: Jon Elson <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, September 25, 2002 10:10 AM
Subject: Re: [CAD_CAM_EDM_DRO] newbie Question


> Ken Retallick wrote:
>
> > Hello all,
> >
> > ive been looking at this group for a little while now. I will be
purchasing
> > a vertical mill very soon, Performa, ZX 7550, Knee mill, 9.5 by 32 inch
> > table, powerfeed etc. Weight about 600Kg. Also 3 axis Easson 3 axis
DRO.
> >
> > I plan on doing a CNC fit to it at some stage, has anyone here done a
> > machine this size? most of what i read here is on the smaller machines.
I
> > realise that programming would be the same, any ideas on what size/
torque
> > stepper motors i need to source.
>
> I have a 9 x 31" Bridgeport, one of their earlier models, with the round
ram.
> I did a CNC retrofit on it, with servo motors and ballscrews. I can't
answer
> stepper motor questions accurately, but we need more info. What type of
materials,
> and what size end mills, etc. will you plan to use? What HP is the
spindle, and
> what is the spindle RPM range? What max feed rate do you want? If you
want
> higher speeds, like over 750 mm/min, you really should consider servos.
>
> You already have the scales for the DRO, too. What resolution are they?
>
> Jon
>
>
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