Re: [CAD_CAM_EDM_DRO] Re: Training a paint arm robot

Hi Peter,

Jogging is not quite like MDI, but the lower level routines that they
call can be similar if not the same.

In MDI, a single defined move is executed (a block), while in jogging, a
short move is started, and then "continued" as desired (while the key is
held down). One can move several axis at once with MDI, whereas (as far
as I'm familiar with) jogging only moves a SINGLE axis. MDI moves are a
snap to record (as I've mentioned, I'm already doing this, and so is
TurboCNC), but jog's are a little different. I'm simply saving the
"finish" location after the jog is stopped, which should result in the
same thing. Problem is, one is only moving a single axis, and this may
not be sufficient for the task (what is the task, anyway?).

I'm using either keyboard keys or a "jog wheel" (panel shaft encoder)
for my jogging, but I suppose if one were to use a GOOD joystick instead
(not a game stick), then multiaxis moves (X and Y, what about Z?) would
be possible.

Are there jog systems out there that move more then a single axis at a
time? Might be interesting to study.

Alan KM6VV


pcfw wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "echnidna" <echnidna@y...>
> wrote:
> > I think Dancam might be able to handle that job it has a "jog and
> > learn" capability
>
> I think training a robot arm and training a bot by jogging (via
> keyboard/joystick etc is quite different? In training a robot arm,
> one moves the arm (or other motion control system like a cnc mill)
> manually and the software have to be able to record the moves, but in
> jogging, easiest example I can think of, say using MDI, the software
> will have a record of the G-codes required, and all is needed is to
> tweak the software to record them? Input programmers please. A
> controller software with training capability is very useful and I
> hope some programmer will find this challenging to cook up one for us.
>
> Peter
>
>
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "wsampl00"
> <WSAMPLESIS@C...>
> > wrote:
> > > Several years ago I saw a program where a robot paint arm was
> > > trained manually by moving the paint arm. The arm was placed in
> > lean
> > > mode and then a person would paint the object by moving the arm.
> > > Once the training was complete the robot could duplicate the
> spray
> > > pattern. Does anyone know an easy and affordable way to implement
> > > this? I know that Galil Montion Control board's have a
> > > learn/training mode; however. I would have to spend over $6,000
> on
> > > controller boards, not to mention the encoders and motors.
> > >
> > > My thinking is a PC based system that would record the timing and
> > > signals on the various encoders for the lean mode. I would think
> > > this would be a relatively easy program to write, and there
> should
> > > be some shareware or low cost software out there. Does anyone
> have
> > > any ideas?
> > >
> > > Thanks
> > > Bill