Re: Is a reduction drive necessary for servo motors?

More than likely you'll need to reduce them to get the most out of
them. It all depends on the motor. Check the motor's no load RPM
if it's over 2000 reduce it. Work to get the RPM down into the 1000
RPM range at the screw.

Also there is an article:
http://www.industrialhobbies.com/howto/tips/balancing_the_servo_and_th
e_cpu.htm
You might want to check.

Thanks

Aaron Moss
www.IndustrialHobbies.com

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Peter Homann"
<peter.homann@a...> wrote:

> Hi,
>
> I'm looking at upgrading a CNC lathe that currently has 210 oz/in

steppers

> to servo motors.
>
> The servo motors are rated at just over 300 oz/in.
>
> The current stepper set-up is direct coupled using zero backlash

flexible

> couplers. The ball screws have a lead of 4mm/turn.
>
> As the servos appear to be more powerful than the steppers, I feel

I should

> be able to do a direct replacement, but have not used servos before.
>
> Do I need to use any gear reduction, or can I direct couple the

servos via

> the flexible coupling as is done with the existing steppers.
>
> Any help or comments appreciated.
>
> Thanks,
>
> Peter Homann
> mailto:Peter.Homann@a...
> Adacel Technologies Limited,
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