I'm trying to autocalibrate the bowden length on my BT. I am using lane 1 to do this and have already auto calibrated the length to the hub for this lane. When running the command the BT will trigger the hub then unload the spool and trigger the hub again then error out since it tries to set the length to -20.
#[solved] Cannot auto calibrate bowden length
tardy aurora
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wind cedar
What sensor are you using for tool start
tardy aurora
tardy aurora
What sensor are you using for tool start
im trying to get it to run with ramming using the turtleneck
wind cedar
Oh well then you have a rubber band around it right
tardy aurora
yeah i do but when running the. command the filament doesnt leave the hub
it just repeatedly loads and unloads it from the hub.
wind cedar
Well then I suspect your switches are backwards
tardy aurora
the weird thing is it was working last week when i was trying to calibrate the length again but timed out because how long the tube was
so im not sure what exactly changed since i havent moved anything
wind cedar
Only you can verify that it does t think it’s already expanded
tardy aurora
with the buffer fully compressed this is what the switches are reading. The expanded one should show empty right?
wind cedar
Yep, and if you move it off the switch?
tardy aurora
if i fully expand the TN then compressed shows empty and the expanded still shows detected. So its probably a dead switch then
wind cedar
Probably a bad wire
tardy aurora
alright ill check continuity then thank you! Also for it timing out due to the length being too long would I just change the max extrude distance?
wind cedar
Timing out? We don’t have a timeout condition in calibration
And if it gave you an error about length then it also told you how to allow it to be longer
tardy aurora
okay thanks
tardy aurora
update on this. one of the wires was broken so I resoldered it. Checked continuity after and it was fine but klipper still shows detected no matter if the TN is fully expanded or compressed
wind cedar
where you check continuity?
tardy aurora
At the switch itself and the connector
I also switched it to another connector on the afc lite and switched the pin in the config and it stayed the same
wind cedar
is it pinned correctly then?
tardy aurora
Yeah it’s pinned the same as the other switches. Next I’m going to test and see if other switches in that connector
tardy aurora
I just wanted to give an update. The issue was in fact a bad wire but on both switches. I misunderstood which switch did what in the firmware and thought only one was the issue. I greatly appreciate you guys being patient with me!
wind cedar
All solved then?
tardy aurora
Yeah!