And the same for reverse, so on tool change or end of print, lover the bed a bit and then move extruder to dock? End is fine as I can say :

M83               ; relative extruder movement
G1 E-2 F3600      ; retract 2mm
G91               ; relative axis movement
G1 Z3 F500        ; up 3mm
G90               ; absolute axis movement
G1 X30 Y-30 F6000 ; move the X carriage in front of dock
G1 X0 F6000       ; Move the X carriage into dock

Just need to figure out how to do this on start or in tpostx.g so that I assume I would

; lift the head
G91 ; relative positioning
G1 Z5
G90 ; absolute positioning

But have that G90 occur AFTER the move to first G1 in the gcode file (or something, obviously this needs to be absolute too in order to start).

Apologies if this has been covered before, after hours searching I gave up.

After years away from using my machines, I lost my S3D profiles after changing laptop. I have decided to stop using scripts in S3D (Start, Tool Change, End) and do it in Macros as much as possible and let my DuetWifi(s) decide what to do.

For the most part I have it all working perfectly (ish) except for 1 thing which I can't figure out how to achieve.

When I was using scripts in S3D I had it so the bed would lower by 20mm, move the active extruder to the next start point raise the bed to the correct high for that layer and begin.

How do I achieve this in just macros? Can this be achieved.

What happens currently is the tool heats up, when ready the bed lowers 20mm then instantly raises back up then moves to position and begins the layer. This while not causing me an issue at the moment, scares the living sh** out of me every time as the nozel is 0.24mm from the build plate as it zips from dock to first position.

Is there anyway to achieve lower Z axis a bit, move to start position in gcode and resume absolute positioning? And the same for reverse, so on tool change or end of print, lover the bed a bit and then move extruder to dock?

Apologies if this has been covered before, after hours searching I gave up.

Yep that works. Tested in my tfree0 and 1 and works as i expected. At end of a tool usage it waits for the active tool to cool a bit so stops oozing out my volcano, wipes and switches tool. This will prevent alot of random oozed filament from being dragged about and falling off randomly.

THanks!

Thanks! I Will use with caution.

Hello Again,

I have just updated to 1.20 Released and want to give this a go now (found some time at home)…

Can you confirm the syntax for putting the tool into standby. is it:

T-0 P0 ; Put tool 0 into standby
T-1 P0 ; Put tool 1 into standby

or

T-0 P0 ; Put tool 0 into standby
T-0 P1 ; Put tool 1 into standby

Or something else?

Happy new year! (bit late I know)

Hi dc42, Did your change make it into 1.20beta2? I have not tried yet but just confirming.

If so, to put the tool into standby in the tfree macro do i just do T-0 P0 to put Tool 0 into standby and T-1 P0 to put Tool 1 into standby? Also, not that i requested this of course, can you put the tool into standby and wait until it hits that temp (wait to cool), if not i can put a wait in after the T-0 P0 for a set amount of seconds.

I checked the release notes but did not see it so just want to make sure it made the cut.

Thanks! Ill keep an eye out for it!

That would be great, thanks!

For completeness this is my tfree0 macro:

M83 ; relative extruder movement
G1 E-2 F3600 ; retract 2mm
G91 ; relative axis movement
G1 Z3 F500 ; up 3mm
G90 ; absolute axis movement
G1 X30 Y-30 F6000 ; move the X carriage in front of dock
G1 X0 F6000 ; Move the X carriage into dock
G1 E15 F3600 ; extrude 15mm
G1 E-2 F3600 ; retract 2mm
;insert standby of tool code here;
G4 S10 ; dwell for 10 seconds (adjust as needed to when ooze stops)
G1 X30 F6000 ; move the X carriage in front of dock
G1 X0 F6000 ; move the X carriage into dock
G1 X-13 F6000 ; park the X carriage at -13mm

Thats what i tried but but the dump bins are not at the max park position so when tool one moves to max park position it wipes of what has oozed but then continues to ooze outside of the dump bin until that tool has cooled. Sometimes this results in the ooze falling of during the print of the next tool which after awhile ends up in a collection of mess or on next tool selection, when i move that tool to the dump bin to re-heat, it flicks off outside of the dump bin.

If there is not a way to call standby from within tfree then at least i know i need to think of another solution.
It might be possible to redesign the dump bin for the left tool but not possible with out modifying the frame for the right tool.
What about lowing the temp relative to the current temp? So lowing by 40c relative to what ever the current active tool temp is? Is that possible by Gcode?

Hopefully an easy one.

I am attempting to control oozing on took changes on my IDEX system.

What i would like to do is in the tfree macros,
Move the tool to the dump bin,
Place the tool into standby,
Dwell for 10 seconds to let the nozzel ooze while the temp of the hotend cools and it stops oozing
Wipe
Move out the way

How would i put the Tool into standby?

The standby temp is set in the slicer depending on the material so i do not want to set a standby temp, just activate standby temp that has already been set in the starting script.

Is there a way to active the standby temp for a tool from Gcode?