Z Homing position different by zero
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@fcwilt said in Z Homing position different by zero:
That is not good.
With the old electronics the print quality was much better, even if the speed did not exceed 33 mm / s.
Do you have a part cooling fan or fans?
Yes, I have a layers fan but I fear that the flow from the duct does not come out perfectly. I'll have to improve it. But I need suggestions.
And what material are you printing?
PLA, 180/185°C
The first thing I would work with is your extrusion settings.
I started from a print speed of 60mm / sec and am adjusting the speed of the outer walls, decreasing it by 5mm / sec each print.
I would like to avoid printing at too low a speed. But if I can't solve it, I'll start with the 30mm / sec of the old electronics.
Bernardo
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Can you post your whole config? Have you set the correct thermistor?
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; Communication and general M111 S0 ; Debug off M550 P"Quadra 600" ; Machine name and Netbios name (can be anything you like) ;*** Networking M552 S1 ; Turn network on M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet M555 P2 ; Set output to look like Marlin G21 ; Work in millimetres G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves ; Drives M569 P0 S0 ; X Axis - physical drive 0 goes forwards M569 P1 S0 ; Y Axis - physical drive 1 goes forwards M569 P3 S0 ; Extrusor - physical drive 3 goes forwards M569 P5 S0 ; Z1 Axis - physical drive 5 goes forwards M569 P6 S0 ; Z2 Axis - physical drive 6 goes forwards M569 P7 S0 ; Z3 Axis - physical drive 7 goes forwards M569 P8 S0 ; Z4 Axis - physical drive 8 goes forwards M584 X0 Y1 Z5:6:7:8 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80 Y128.00 Z800.00 E102.16 ; set steps per mm ;Default M566 X900 Y900 Z12 E120 P0 ;M566 X1800.00 Y1800.00 Z24.00 E240.00 ; set maximum instantaneous speed changes (mm/min) ;Default M203 X6000 Y6000 Z300 E1200 I30 ;M203 X12000 Y12000 Z600 E2400 ; set maximum speeds (mm/min) ;Default M201 X500 Y500 Z20 E250 ;M201 X1000 Y1000 Z40 E500 ; set accelerations (mm/s^2) M906 X1275 Y1875 Z1875 E1275 I30 ; set motor currents (mA) and motor idle factor in per cent (60-90% of nominal current) M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X602 Y602 Z602 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop M574 Z1 S1 P"duex.e2stop+duex.e3stop+duex.e4stop+duex.e5stop" ; configure active-high endstop for low end on Z via pin duex.e2stop+duex.e3stop+duex.e4stop+duex.e5stop ;M574 Z1 S1 P"duex.e5stop" M669 K0 ; select Kinematics Y to react with X and Z ; Z-Levelling ;M558 P0; H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed ;M557 X15:587 Y15:587 S20 ; define mesh grid ;M671 X-115:-115:715:715 Y130:470:470:130 ; Z leadscrews are at Z2 (-115.130) Z2 (-115.470), Z3 (715.470), Z4 (715.130) ; Thermistors ;M140 H-1 ; disable heated bed (overrides default heater mapping) ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e0temp" Y"thermistor" T100000 B4092 ; A"MK8" ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S280 ; set temperature limit for heater 1 to 280C ; Fans M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1 H T45 ; set fan 1 value. Thermostatic control is turned on ; Tools M563 P0 D0 H1 F0 S"Estrusore MK8" ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ; Miscellaneous M575 P1 S1 B57600 ; enable support for PanelDue M18 Z E0 M208 S1 Z-0.2 T0@jay_s_uk said in Z Homing position different by zero:
Have you set the correct thermistor?
Honestly, I have no idea. I used the values of the old electronics.
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@bernardomattiucci
are you using stock thermistors? if so, what printer is it? -
@jay_s_uk said in Z Homing position different by zero:
@bernardomattiucci
are you using stock thermistors? if so, what printer is it?Thermistor 100 KΩ...
but i have no idea what it is (make / model). They gave me 3 supplied with the MK8 extruder.
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Consider that, at the moment, I have no way to control the temperature of the hob. I have an electric "stove" lit under it which keeps the aluminum surface (and the glass surface) hot enough to be able to print (ambient temperature below 20 ° C).
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Zero layer of a test cube of 50x50x50 mm.
There are essentially 2 problems ....- Brim is not accurate. Perhaps it is due to poor adherence to the plan.
- the filling is not precise and does not overlap the wall.
Maybe I need to change something in the settings. But what?
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In addition to modifying the speed of the walls again, with this larger test, the result looks better (apart from Layer 0). Perhaps, and this is my suspicion, the airflow of the layers fan is not suitable for small objects. If this is the case, I will have to redo the duct providing a vertical flow all around the hotend. So a more distributed flow than this, which remains concentrated in one corner.
At Layer 24 I paused the print to take a photo from above. In resuming the print you notice the slight error, especially on the left corner of the previous photo.
Layer 136:
You see various errors / problems along the edges. They are almost certainly due to a non-optimal Jerk setting. Tomorrow I will try to improve!
Anyway ... congratulations to everyone because this electronics are phenomenal!
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And with these 5 photos I close the discussion.
Thank you all
