Switching Hotend

Adam_sw3 0

Hi all, I was wondering if we have had any developments on a 2 extruder 1 nozzle printing setup. Would it be possible for me to retract one filament and load another one using a Y splitter? If so, what would I have to add into my config file to allow this to happen during the print?

Thank you.

jay_s_uk

@Adam_sw3-0 define another tool in your config using M563 and then use the tool change files to swap the filament over

Adam_sw3 0

@jay_s_uk ahhh okay, that simple? How do I go about defining retraction distances in material switch over mid print?

jay_s_uk

@Adam_sw3-0 you would just need to work out how much you want to retract and do it as part of tfreeX.g (with X being the tool number)
e.g.

G92 E0
G1 E-10

then the tpreX or tpostX would be something like

G92 E0
G1 E10
G92 E0

Adam_sw3 0

@jay_s_uk ahhh brilliant, thank you very much for this! Thats helped alot thank you!