Every time the tool is changing from lane3 to something else, lane3 gets ejected. It does not happen with other lanes. I run the calibration again and the values didnt change. Seems fine that dist_hub is the same with lane2 and lane3
#lane3 ejecting when it is unloaded in a print
trail cove
left zenith
Try reducing your tool_stn_unload length, it should be smaller than your tool_stn value. Good way to find it would be to fully load and extrude, then manually run AFC_CUT, and then retract back keeping track of total movement until your toolhead sensor not longer detects filament and then put this total value as your tool_stn_unload value.
trail cove
I am using a stealthburner with dropeffect hotend and g2 extruder. I took the values from the documentation. Looking at the picture it makes sense that the unload value is smaller. why is it opposite in the documentation?
here the values from the doc
left zenith
yeah alot of these values were given to us by community members
trail cove
100 seems right. the sensor went empty after 10 times reverse extruding 10mm.
checked a second time with extuding 90 and then making steps of 2mm. around 100 seems fine
left zenith
when lane 3 gets ejected again can you please upload your AFC.log without restart
trail cove
lane calibration looks fine. i will do the unload
trail cove
its magic. in the last print every unload ejected the lane. now i did a new print and so far 20 unloads just work
left zenith
ok well thats good 🙂
left zenith
so try adding afc_unload_bowden_length to your AFC_hub section and make it like 50mm shorter than your afc_bowden_length
documentation for this variable https://www.armoredturtle.xyz/docs/afc-klipper-add-on/configuration/AFC_UnitType_1.cfg.html#afc_hub-hub_name-section
almost forgot, this actually can be updated/set without restart https://www.armoredturtle.xyz/docs/afc-klipper-add-on/klipper/internal/lane.html#AFC_extruder.AFCExtruder.UPDATE_TOOLHEAD_SENSORS
trail cove
so then
afc_bowden_length: 1760.0 # Length of the Bowden tube from the hub to the toolhead sensor in mm.
afc_unload_bowden_length: 1710.0
i dont think that afc_unload_bowden_length can be set UPDATE_TOOLHEAD_SENSORS
i also found this value in another file. i will delete AFC_auto_vars.cfg
left zenith
so then
afc_bowden_length: 1760.0 # Length of the Bowden tube from the hub to ...
it can be its TOOL_STN_UNLOAD value
left zenith
i also found this value in another file. i will delete AFC_auto_vars.cfg
Yeah just delete the auto file if you put it in AFC_hub
trail cove
it would be 50 then.
now i am fighting with a extruder jam, so i will just change the other value and restart the printer
