It has happened many times today that in the middle of the print jobs, filament was not being extruded. For the last few prints, it printed one or a few layers and then no filament was extruded. What is the cause? I unloaded the filament and loaded again. Same problem. Tried different filament. Same problem.
Not sure if related but in the past, this seemed to happen more likely when I left the filament loaded in the printer unused for a few hours before printing again. Why doing so increased the chance of no filament being extruded mid-print?
Sorry I forgot to mention that I am using E3D Revo 6 High Flow Nozzle 0.4 with high flow heatercore.
One strange thing that I noticed the past few days is that sometimes as the tip of the filament entered the extruder, it got automatically is guided in. However, sometimes I have to manually push it by, say about 5cm, before it was guided to extrusion. What is wrong?
BTW: How did you estimate that huge amount of driver parameters? Do you know what they do?
Another notice: What do you use the diag1_pin for in the extruder?
#diag1_pin:
# The micro-controller pin attached to one of the DIAG lines of the
# TMC2130 chip. Only a single diag pin should be specified. The pin
# is "active low" and is thus normally prefaced with "^!". Setting
# this creates a "tmc2130_stepper_x:virtual_endstop" virtual pin
# which may be used as the stepper's endstop_pin. Doing this enables
# "sensorless homing". (Be sure to also set driver_SGT to an
# appropriate sensitivity value.) The default is to not enable
# sensorless homing.
Hello, I have not tried with a higher motor current.
I did not estimate any driver parameters and I did not assign diag1_pin myself. Everything was set up automatically during installation of Klipper via the following method:
I never had issues with that config. You could probably take the TMC2130 parameters from the below official config and put them in your current config.
Thanks. So I just put it in ~/printer_data/config?
Currently, the “einsy-rambo.cfg” file is located at ~/printer_data/config/klipper-prusa-mk3s/mk3/einsy-rambo.cfg Will it be automatically removed or I have to delete it.
You could do that, but I would just remove the TMC sections from your existing config and copy and paste the TMC sections from the linked config into your config.
I don’t see any TMC sections in ~/printer_data/config/klipper-prusa-mk3s/mk3/einsy-rambo.cfg but there are a few in :~/printer_data/config/klipper-prusa-mk3s/mk3s/tmc2130.cfg. So I just replace the original ones by the ones listed in config/generic-einsy-rambo.cfg
I see that in printer.cfg, it includes a tmc file from that github site I mentioned. I pasted value from the config linked but it became worse. Now it failed to extrude in the middle of the first layer.