Re: [CAD_CAM_EDM_DRO] Thoughts on PC Based Control Retrofit....pictures of the specimen

Marty Escarcega wrote:

> Jon, my target number is $1000 or less. Depending on what I can
> scrounge...powersupplies for example? Perhaps it would be better
> to buy them.?
>
> Appreciate your advice, spoke with Matt Shaver too, he
> recommended the Gecko drive too ...
>
> I do have an electric lube pump. A VFD would be nice. Matt and I
> chatted about that, but what way is there for the control to know
> what rpm the motor is running at?

The computer sends an analog voltage that is proportional to desired
spindle speed, the VFD's job is to keep it there. It works pretty well in
open loop.

> VFD's and that sort can be added on later. I can terminate that I/O
> to a terminal block and add later.

Certainly.

Jon