Re: [CAD_CAM_EDM_DRO] What is wanted in a controller,

Hi Alan

oh yea sixteen is plenty ,I would rather have them on a knob than
have to use buttons to scroll thru them but scrolling would be OK
for the spindle speed override (it dosent get used as much)

the feedrate override knob comes in handy when you do the first run to
verify programs ,you set the machine to single block and turn the feed to
zero ,then step thru watching the 'distance-to-go' display and crank up
the feed knob after checking that the current move wont crash

many controls have somewhat odd steps on the overrides like
0-5-10-25-50-60-70-80%... and so on up to 200% within 16 settings

others have three overrides for spindle-speed,feedrate and rapid-feedrate
with rapid settings for 25-50-75-100% the rapid override can be dangerous
if your not used to it ,I'm not... ,so I dont like that setup :-)

Brian

On Wednesday 13 February 2002 20:15, you wrote:
> Hi Brian,
>
> Yes, I can see that. In and out of MDI to reset DRO of jog encoder.
> The encoders I have give just a little "feel". Your saying that 16
> preset override values would work, why not just "scroll" through a list
> of overrides, like the jog distance? Cheaper then BCD switches. I'd
> think a 10 turn pot into an A/D converter would give good control also.
> Now to figure out how to do the override in the motion code (mine).
>
> Alan KM6VV