Re: Servo controllers for table top machines.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "enytned1" <alexkcpr@...> wrote:

>
> "It trades speed you can't use for torque you can." What??????
>
> I was under the impression I could just bolt on the brush type servo
> motors directly to the ball screw end, similar to the way my stepper
> motors are connected currently.
> How do DC-servo motors with 500CPR encoders with Gecko 320drives
> compare to a micro stepping motor and driver in terms of
> repeatability, precision etc?
>
> The old techno controller I use was originally setup for full step
> mode I have changed this to half step mode and have seen an immediate
> improvement. How reliable are these controllers you mentioned? I
> know I can get a 4-axis upgrade from Techno for about $3500.00 but I'm
> not sure if I can convert it to run of Mach3?

$3,500 for an upgrade ?

Is that a whole new machine ?

A power supply would cost less than $500.00, 3 drives less than
another $500.00, 3 motors, depending on costs, anywhere from $20.00
treadmill motors to $350 servos. Encoders would run about $200.00 for
the three, depending on options. may come with 'real' servo-motor.

I think you would be hard pressed to spend $2,000 on a complete servo
system.

Dave