G4 Dwell

I see that "G4 Pnnn" is implemented in the firmware - but maybe I misunderstand what it does.

I have done a post-processor to add a "cooldown" delay to my Gcode at the point it changes Z layer, (as AFAIK slic3r does not have "cool" )
by moving a little away from the endpoint and executing "G4 P1000" - I assumed this would give a 1 second pause.
But it just goes to the park point then immediately returns to the start of the next layer and carries on.

G1 Z0.410 F6000.000 ; move to next layer slic3r code
G1 Y70 F6000 ; ## fast move to Y=70 ready for cool ADDED code
G4 P1000 ; ## Cool delay ADDED code
G1 X93.707 Y86.293 ; move to first perimeter point back to normal slic3r code

nb99 Wrote:
-------------------------------------------------------
> I see that "G4 Pnnn" is implemented in the
> firmware - but maybe I misunderstand what it
> does.
>
> I have done a post-processor to add a "cooldown"
> delay to my Gcode at the point it changes Z layer,
> (as AFAIK slic3r does not have "cool" )
> by moving a little away from the endpoint and
> executing "G4 P1000" - I assumed this would give a
> 1 second pause.

Thats correct. P or S

> But it just goes to the park point then
> immediately returns to the start of the next layer
> and carries on.

It's the move planner that is too much ahead. I checked the code and there was a "wait for moves to finish" missing. So it waited your second but the move planner hat enough to do for more then a second, so you didn't see it. I'm currently updating it with your other found problems for the next release today or tomorrow (I hope).

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