RE: [CAD_CAM_EDM_DRO] Re: Servo Mill drill video

Spindle on that machine won't take that speed.

I think they are rated for something like or just over 2000 rpm, (would have
to look on the plate), but an hour or so at that speed and the bearings
start to suffer. At 800 to 1000RPM the spindle bearings last for years, but
I have had to replace my bearings quite a few times due to high speed use.
My version of this machine is manual, they also aren't that rigid to push hi
speed machining rates, as a manual machine it is difficult to machine hard
materials without some surface paterning I hope though as a CNC machine you
will find better control over feeds to reduce this.



My big mill I bought to CNC will run at 600ipm rapids, I slow that down, but
if a servo, or the G100 runs away that is really scary. This one is big iron
several tons of it.



Dr. Mark Vaughan Ph'D. B.Eng. M0VAU

Managing Director

Vaughan Industries Ltd, reg in UK no 2561068

Water Care Technology Ltd, reg in UK no 4129351

Addr Unit3, Sydney House, Blackwater, Truro, Cornwall, TR4 8HH, UK.
Phone/Fax 44 1872 561288

RSGB DRM111(Cornwall)

_____

From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of vrsculptor
Sent: 23 April 2007 00:42
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Servo Mill drill video



Dan,
Great!! Now all you need is a 30,000 rpm 5hp spindle so you could cut
metal that fast. I've limited my rapids to 100ipm and its still a bit
scary. I love servos...

Roger





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