Re: [CAD_CAM_EDM_DRO] Techno Isel Modifications/ Geko Drives

The plan is good.
The servos either will work with geckos, or not.

If not, they will be worthless to you.
Commercial servo drives that will work with the motors, will be about
1500 per axis.
If not, sell the servos on fleabay.

If the motors are standard DC servo motors, with brushes, and they use
standard encoders, use them.
Otherwise, with treadmill motors, you can get excellent gecko-suited
servos cheaply, at about 100$ / axis.
Motor from surplus centers, encoders from usdigital or (I have not
tried) AMT103 from digikey I think.

I use very-high resolution encoders, 10.000 count, with industrial level
results, and a SS or smoothstepper board.
All resolutions cost the same.

Others have used around 500 count or 2000 quadrature count encoders, and
also report good results.
Using the higher count makes the cheap motors work very, very well. They
dont chatter or wear as much, accelerate smoothly and position more
accurately.
I get +/- 2 counts or better, so far, at 10.000 counts.
This mandates using a SS board, I need about 200 to 500 kHz or 5-10x
more than Mach can provide.

>
>
> My plan is to buy and use Mach 3, a breakout board, and
> GekoDrive's G320 Servo Drives to replace their controller and
> amplifier. I plan on removing the power supply that was part of their
> system, and using it as the power supply for my system.
>
> My question are:
>
> 1) Does anyone see any problems with doing
> this? I have the diagram for the encoder(s) wiring and the specs on the
> servos. The G320 drives are perfect for my equipment, so I don't
> think there should be any problems, but I am not sure.
>
> 2) Is there anything I am missing in between
> the power supplies and the G320's or them and the Servo's, such
> as power resisters or other like items? Everything is fused and is
> installed and protected according to documentation.
>
> Sorry for the novel, but thought a little background would be helpful.
> Any thoughts or suggestions would be appreciated.
>
> Thanks
>
> Eric
>