First Layer and Extrusion Problems
-
@Veti yes, its possible. you can set high or low endstop positions in advanced printer setttings
-
@Frederik
my recommendation is to not do it. why do you think that is better? -
what could be the cause of this message :
G28 Z
Error: Z probe already triggered at start of probing move
Error: Homing failedi got this message on every 4th or 5th try to home z.
its a genuine bltouch
-
that sounds like a wiring probem
-
@Veti i tought, perhaps its the standard and would be better for compatibility or troubleshoooting reasons...
-
@Frederik
no the standard is 0,0 is bottom left. -
@Veti ok , one moment i will check it with my multimeter... could it be a bad crimp ?
-
@Frederik said in First Layer and Extrusion Problems:
I could only mount the Endstop on the left side of my carriage and the Y Endstop is at the back
Hi,
The location of the end stop sensors do not determine where 0, 0 is located.
End stop sensors are used during homing, true, but they only "tell" the firmware the hardware is in a known location, which may be at the axis min, the axis max or somewhere else.
It is common to have 0, 0 at the left front corner of the bed. Another option is to have 0, 0 at the center of the bed - that is the what I do.
Frederick
-
@fcwilt Ah ok, now i got it
-
so, now to a new start... nozzle free again, probe working (was a light loose crimp pin on the black wire)
-
ok ,looks good so far. i startet my first 20mm xyz test cube
fingers crossed , i hope it will run through without clogging -
This is my very first successful Print:
It should be 20x20x20
And the actual dimensions areX 20.10 MM WITH STEPS 160
Y 20.10 MM EITH STEPS 160
Z 20.40 MM WITH STEPS 400 -
you have not calibrated you e steps yet
-
@Veti i forgot E 830
-
@Frederik said in First Layer and Extrusion Problems:
i forgot E 830
i dont know what you mean by that
here is a guide on how to calibration it
https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+4:+Calibration/40#s165 -
@Veti My extruder steps are correct. 100mm are 100mm
-
the bottom looks a bit strange, did you enable raft?
-
@Veti brim was activated. but i´m struggling with the z offset a little bit. sometimes its really good , on the next try its scrubbing over the bed.
The cube was also printed on the backside of my buildplate. not the pei side to avoid any additional damage to my surface.
i adjusted the bed to the subframe assembly with my digital calipers to ~ 0.05mm equal distances.
then i checked my bltouch mountig if it is perpenticular to the bed. that is also good.
then i homed z.
after that a true bed level with G32
another G32Then mesh compensation with G29 and another G32 to Load the new Heightmap.
Now im testing with ABS Filament. because the pla before was constantly clogging in the heatbreak.
i adjustet my retraction to 1mm with 25mm/s speed and will see if it will be better. i have zero stringing with these settings.
-
@Frederik said in First Layer and Extrusion Problems:
after that a true bed level with G32
another G32
Then mesh compensation with G29 and another G32 to Load the new Heightmap.that is not a good idea. the G32 after the G29 will mess up the mesh. also after running G32 you need to establish a new Z
-
@Veti oh, I didn't know that. Then I won´t do a G32 after the G28 anymore
is the software handling everything after the G32 automatically from the heightmap every time I start a new print?
