I am not sure what way to do the calcs on the steps from my marlin config to the Sb
here is what worked on marlin #define DEFAULT_AXIS_STEPS_PER_UNIT {80.0,80.0,4000.0,820.5}
820.5 is the extruder steps but when putting 820.5 in the extruder.hotend.steps_per_mm and then tell Pontaface to extrude 100mm it actually extrudes 20mm
what calc do I need to do to convert the 820.5 to be compatable to the SB please ?
I know that the SB is 16stepping but double or half the 820.5 is nowhere near right
something is not right here
I have changed the extruder.hotend.steps_per_mm 4000 # Steps per mm for extruder stepper
and it still only extrudes about the same 20mm I must have something else wrong in the settings ?
Extruder module configuration
extruder.hotend.enable true # Whether to activate the extruder module at all. All configuration is ignored if false
extruder.hotend.steps_per_mm 4000 # Steps per mm for extruder stepper #define DEFAULT_AXIS_STEPS_PER_UNIT {80.0,80.0,4000.0,820.5} // default steps per unit for i3
extruder.hotend.default_feed_rate 1500 # Default rate ( mm/minute ) for moves where only the extruder moves
extruder.hotend.acceleration 500 # Acceleration for the stepper motor, as of 0.6, arbitrary ratio
extruder.hotend.max_speed 50 # mm/s
extruder.hotend.step_pin 2.3 # Pin for extruder step signal
extruder.hotend.dir_pin 0.22! # Pin for extruder dir signal
extruder.hotend.en_pin 0.21 # Pin for extruder enable signal
extruder offset
extruder.hotend.x_offset 0 # x offset from origin in mm extruder.hotend.y_offset 0 # y offset from origin in mm extruder.hotend.z_offset 0 # z offset from origin in mm
the #define is only there for ref when changing settings
I have been powering down the board when making the changes to make 100% that its reading the correct values.
But I have found 1 thing that may be an issue.
The Extruder stepper seems to be running all the time and is getting warm, I have dropped the current to 0.7 but still running.
I have issued the m18 command and Motors off in Pronterface but it still seems to be running
Been looking around on the net and come across this in someones config
extruder_steps_per_mm I know the hotend is missing but this one has the " _ " in all the command
mine has extruder.hotend.steps_per_mm 4000 with a " . " before the steps, cold this be the problem ?
My only issue now is homing, is there a separate line in the config for this, actually the speed of this ?
When i move the z-axis in proterface and during a print it all seems fine, but when the printer gets the home command the z-axis almost takes off, and
is in fact to fast and the drives go to quick for the axis and it even jams.
I have tried setting the Z speeds that i can find in the config to lower and as i say printing and using proterface to move the z-axis is fine but the home before the print starts even makes you jump the speed the thing tries to run at and the noise
Make sure you always unmount the SD card from your computer before resetting or unplugging the board, or you may corrupt the board, resulting in the kind of trouble you seemed to have.
Also, if this kind of problem happens again, maybe try using another SD card.
My only issue now is homing, is there a separate line in the config for this, actually the speed of this ?
