Animation with retro arcade - Link to
Custom eject for hi...
Clear all

Custom eject for high temp materials

Trusted Member

I want to make an eject macro for high temp material since the default not always eject those materials correctly. I intended to use the normal eject as a start but 40 degrees higher temperature. The problem is that there are a lot of different files in the macro folder with the name "eject" and I don't know there to start. I tried a little but couldn't make it to work. Whatever I did it always heat extruder 2, not 1.

Something like this:

???                    ;Select extruder T0/Select right hand nozzle

M106                ;Fan on

M104 S200      ;Set & heat nozzle to eject temp 200 deg

M109                ;Wait for nozzle to get to temp.

G0 E-50            ;Eject Filament a few mm

M104 S165      ;Go to snap temperature 165 deg

M109                ;Wait for nozzle to get to temp.

M104 S50        ;Begin reducing temperature to 50 without waiting

G0 E-1200        ;Eject Filament

M109                ;Wait until 50 degrees reached

M104 S0           ;Switch off the heaters

M107                ;Turn off Fan

M84                  ;Motors Off

Topic starter Posted : 27th August 2021 5:45 am
Famed Member Admin

M104 heats the nozzles to the temperature on the reel. You can also specify a nozzle us S or T.

Eg this line will heat material 1 to 200°C:

M104 S200 ;Set & heat nozzle to eject temp

But this line will heat material 2 to 180°C:

M104 T180 ;Set & heat nozzle to eject temp

Or you could heat both nozzles like this:

M104 S200 T180 ;Set & heat nozzle to eject temp

Or any combination to ensure a nozzle was not heated:

M104 S200 T180 ;Set & heat nozzle to eject temp

For official support please create a support ticket using this link

Posted : 27th August 2021 3:18 pm

This community page and the content inside is publicly visible except in restricted groups. A registered community member is able to post content. Because of the open nature of this forum the content posted may not represent the views of CEL. While we do regularly read the content posted, in some cases the content may not be appropriate for the reader or may cause offence. Please help us by reporting such content. Technical advice provided in this forum may be provided with good intention and a belief that is is correct but may not be applicable to all hardware, software or user ability. In some cases content may not be relevant to newer or older revisions, conflicting or incorrect advice may be contained within conversations, community moderators will attempt to add to this or make corrections but to preserve the thread this may be on following pages or be missed as the forum evolves.

For official advice users should contact the CEL support team via and follow the provided advice to preserve safety, warranty and function of Robox hardware or software.
This applies to any use or alteration which is not specifically described in the officially supplied guides from CEL. Community content should not be considered official even where posted by CEL employees. Only advice provided via the CEL support portal should be considered official.
Robox is a complex machine with many potential uses, to help preserve the good working order of both hardware and software please be patient and note that many common fixes for other 3D printers do not apply to Robox and may cause irreversible damage or compromise safe operation.
Images and content placed on this forum may be used by CEL and in related media without reward or attribution.