On 17 May 2015 at 00:52, Greg Bentzinger <[email protected]> wrote:
> Basically I would need a box to accept 3 axis +/- 10V inputs for velocity and
> output quadrature to make the control think its actually spinning the servos.
Most of this sounds like a fun LinuxCNC project, the only fly in the
ointment being getting the +/- 10V into LinuxCNC.
The LinuxCNC stepgen component can output quadrature pulses (also
look at sim_encoder, with which I am less familiar).
So {wave of hands} -> velocity-mode stepgen -> wcomp limits + Vismach
model might be enough to fool the control into thinking that a machine
is attached.
The reason I suggest LinuxCNC and Vismach for as much as possible is
that it is all easy to look at, and the Vismach model will show all
that is going on more clearly than looking at numbers.
The simulator wlll be no help for tuning the control.
So, the problem is one of getting +/- 10V into LinuxCNC.
The quickest and easiest way to got +/-10V to quadrature might
actually be to buy three little servos and drives. You can always use
them for a cable tripod camera or something.
--
atp
If you can't fix it, you don't own it.
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