Re: [CAD_CAM_EDM_DRO] G rex question

The G-rex is a sort of super breakout board. As well as having 16
digital inputs and 16 digital outputs it also generates the step pulses
in hardware producing a much smoother pulse stream than Mach3 can on
it's own. If you are using steppers a smoother pulse stream equates to
more available torque and less chance of lost steps. Instead of the
parallel port it uses a network connection.

How long is it likely to take you to put your lathe together? If it is
nearly ready to go then you may be better off using two Campbell
breakout boards. If it is likely to be a few months before it is ready
then you are probably better off going for the G-Rex. MachIV is in beta
at the moment but from all accounts it is progressing fast .

Les

Steve Haushahn wrote:

> What is the G-Rex ? Is that a kind of a breakout board to fit between a PC
> and stepper or servo drives?..
> .
> I understand it is new and not entirely ready to be widely distributed to
> every hamfisted newbie who is slapping a cnc together?
> .
> My situation is that I am getting ready to upgrade an old cnc lathe to run
> on Mach3/ PC and that lathe has/requires more inputs/outputs than can be
> handled with a single 'Bob Campbell's breakout board.... So I am wondering
> how I should proceed...One option might be to run a second breakout board
> from a second printer port - but dont know how to do that..But that may be
> my only/best option - unless G-rex---------?
> .
> Steven
>

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