Re: [CAD_CAM_EDM_DRO] Re: Bridgeport CNC Mill???

On Thu, 6 Oct 2011 23:13:03 -0400, you wrote:

>The Haas machines I use on a daily basis don't allow you to jog during feed
>hold. However, you can feed hold, then spindle stop. Pressing cycle start
>again will restart the spindle and coolant before restarting table motion.
> Additionally, if you reset the program, then manually select a line to
>start from, the machine will read through and perform any necessary tool
>changes, spindle starts, load offsets, etc, necessary to restart without
>crashing.

Perhaps it's not enabled or old software?

Haas have a run-stop-jog-continue (RSJC) feature that allows the
operator to interrupt program execution, jog away from the part to
perform a desired task, and then return to the interruption point and
resume program execution. Once RSJC is initiated, the operator is able
to stop and start the spindle, jog the XYZ axes individually (axes other
than X, Y, and Z cannot be jogged), or command a tool release. The
following describes the RSJC procedure. (Software version 11.20 and
above.)

1) While a program is running, press FEED HOLD. This will stop all
motion (after any canned cycle in process has been completed.)

2) Press X, Y or Z followed by the HANDLE JOG key. The control will
store the current X, Y or Z position. Axes other than X, Y, and Z cannot
be jogged.

3) At this point, the control will display the message JOG AWAY, and
will tick once each second or so. The operator can use the jog handle,
remote jog handle, the HANDLE JOG increment buttons (.0001/.1, .001/1.,
.01/10., .1/100.) or the JOG LOCK buttons to move the tool away from the
part. Now you can use the COOLNT key to cycle the coolant, and CW, CCW,
STOP to operate the spindle. You can also use the TOOL RELEASE button,
and turn Through-Spindle Coolant (TSC) on and off using the AUX CLNT
key. Note that using AUX CLNT requires that the spindle be rotating and
that the door be closed. At this point tools can be swapped out and the
associated length and diameter offsets adjusted. However, when the
program is continued, the old offsets will still be used for the return
position and any motion commands already in the queue. It is therefore
unsafe to swap out tools and adjust offsets when the program is
interrupted during a cut.

4) When you’re ready to continue, jog to a position as close as possible
to the stored position, or to a point where there will be an
unobstructed rapid path back to the stored position.

5) Return to the previous mode by pressing MEM, MDI or DNC. The control
will only continue normally if the mode that was in effect at the time
of the interrupt is re-entered.

6) Press CYCLE START. The control will display the message JOG RETURN
and rapid X and Y at 5% to the position where FEED HOLD was pressed;
then it will do the same for Z. The rapid rate override keys have no
effect during JOG RETURN. Note that the control will not follow the path
the operator used to jog away. Instead, it will perform simple moves
without regard for obstacles. Therefore, a crash is possible. If FEED
HOLD is pressed during this motion, the control will go into a feed hold
state and display the message JOG RETURN HOLD. Pressing CYCLE START will
cause the control to resume the JOG RETURN motion. When the motion is
completed, the control will again go into a feed hold state.

7) Press CYCLE START again and the program will resume normal operation.

Steve Blackmore
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