please help me blv setting
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How low of a temp can you set and still reliably extrude?
What kind of thermistor do you have and what parameters have you set for it in your config? If those values are very wrong for the thermistor your temps could be wildly off.
If you can extruder PLA much below 180 I think that may be part of the problem.
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@phaedrux it is true that I have not tried 180 or even 175.
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation M92 X201.00 Y201.00 Z800 E693.55 ; Set steps per mm for orbiter M566 X500 Y500 Z800 E600 ; Set maximum instantaneous speed changes (Jerk) (mm/min) M203 X20000 Y20000 Z600 E3600 ; Set maximum speeds (mm/min) M201 X1000 Y1000 Z100 E600 ; Set accelerations (mm/s^2) M906 X1500 Y1500 Z1000 E500 I10 ; Set motor currents (mA) and motor idle factor in per cent ;M84 S30 ; Set idle timeout ;M350 E16 I1 ;micro stepping set to 16 with interpolation ;M92 E690 ;steps/mm - you may need to finetune it ;M203 E3600 or E7200 ;max speed mm/min ;M566 E600 ;instantaneous speed change mm/min ;M201 E600 or E800 ;acceleration mm/s^2 ;M906 E500 or E1200 I10 ;motor current mA idle current 10% ; ===================== Axis Limits ======================== M208 X-23 Y0 Z0 S1 ; Set axis minima M208 X320 Y320 Z350 S0 ; Set axis maxima ; ======================== Z-Probe ========================= M558 P1 C"^zprobe.in" H5 F200 T9000 I0 R0.5 ; Set Z probe type mini ir sensor G31 P500 X-2.24 Y-20.81 Z1.300 ; Set Z probe trigger value, offset and trigger height M557 X20:270 Y20:270 S240 ; Define mesh grid ; ======================== Heaters ========================= M308 S0 P"bed_temp" Y"thermistor" T100000 B3950 ; define bed temperature sensor M950 H0 C"bed_heat" T0 ; heater 0 uses the bed_heat pin, sensor 0 M307 H0 R0.272 C388.6 D16.77 S1.00 V23.6 ; Heatbed PID 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 B4725 C7.06e-8 ; define E0 temperature sensor M950 H1 C"e0heat" T1 ; heater 1 uses the e0heat pin and sensor 1 M307 H1 B1 R2.466 C168.0:167.2 D4.81 S1.00 V23.5 ; Hotend PID .4mm M143 H1 S260 ; set temperature limit for heater 0 to 260C M308 S2 P"mcu-temp" Y"mcu-temp" A"Duet Board" ; Configure MCU sensor -
@sgk ; ======================== Tools ===========================
M563 P0 S"T1" D0 H1 F1 ; 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; ========================= Fans =========================== hotend fan/ hotendM950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 C"hotend" T45 ; set fan 1 value. Thermostatic control is turned on 100% at 45degTool Fan/ Layer FanM950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0.5 H-1 C"Layer fan" ; set fan 0 value. Thermostatic control is turned offM950 F2 C"fan2" Q250 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S0.15 H-1 F250 C"AC alimentation" ; set fan 2 value. Thermostatic control is turned off; ===================== Custom settings ====================M572 D0 S0.015 ;pressure advance Set bowden extruder elasticity compensation for E0
M207 S1.5 F3600 Z0.01 ; Set firmware retraction parameters
M564 H0 ; Let the Jog buttons work blv: added to allow jog buttons -
@sgk
I also put in bangbang b1 born the same.but why I have the walls that are not straight as if the extruder the filament does not come out permanently. -
@sgk said in please help me blv setting:
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8
This looks like the values for the E3D semitek thermistor. Is that what you have? From your previous post it seems so.
@sgk said in please help me blv setting:
are normal when I do the pid my fan does not cut hotend?
What command did you use to PID tune the hotend?
M303 T0 S220?
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@phaedrux i have hotend dragon + thermistor semitec 104
M303 T0 S220 Where 205 -
@phaedrux said in please help me blv setting:
You may also find this calibration guide helpful.
https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+4:+Calibration/40I would suggest that going through this guide first would be helpful to help use know if your extruder is properly calibrated first.
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@phaedrux
I tried a lot of things but I can find the problem even changing a lot of things it's depressing -
@sgk
I calibrated several times the extruder made tests -
@sgk
thank you very much I will look for I will redo the extruder test thank you -
can you show us a video of the printer in action?
Maybe share a sliced gcode file so we can see the slicer settings?
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@phaedrux yes OK thanks
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@sgk that z wobble design is notoriously bad for allowing planar shift of the bed as it rises. It’s not appropriate for a kinematic connection on two z axis system. That is likely a significant source of the banding, as you’re exacerbating screw matching variance and rod straightness. You’re better off with a pinned connection on at least one end.
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interesting observation, @Nuramori!
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thank you very much for your help.
Can you explain to me because I do not understand very well what you explained. -
@sgk the magnetic coupler (similar to an oldham coupler) if installed on both leadscrews allows for a loosely coupled mounting of the leadscrew to the nut. If both z axes are loosely coupled, the plate can wander around because both sides can move. to avoid this, one side needs to be fixed.
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@oliof said in please help me blv setting:
The magnetic coupler (similar to an oldham coupler) if installed on both leadscrews allows for a loosely coupled mounting of the leadscrew to the nut. If both z axes are loosely coupled, the plate can wander around because both sides can move. to avoid this, one side needs to be fixed.
Looking at the earlier posts & photos, the Z axis is on linear rails and only the leadscrew nuts are decoupled?
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@rjenkinsgb I trust Nuramori who knows the design of this machine if he says this can cause planar shift.
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@oliof , yeah, that part of the machine I'm pretty intimate with :p.
I didn't like anything that was out there (initially when I started building it, there wasn't even a three z-axis design), so I designed mine from scratch, and utilized a Kelvin based kinematic system. Later, I upgraded it with a "z-wobble" interface to take care of that last bit of possible influence from less than perfect rods that weren't concentric about it's axis. It can move vertically, but the connection is decoupled from the rod movement in the x and y direction, as the vertical movement is defined by the MGN rails.
I chose the Kelvin approach over a maxwell design because ONE of the points is completely fixed in all axis, and maintains a predictable direction of thermal shift for the bed, and in general, pins the bed to prevent possible random movement when moving along the Z axis.
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@nuramori Hello and thank you for your answer, it's possible to explain to me how you did it because if I understood correctly you have 3 axes, is that right?
And you have to talk about kelvin find you where this information please it is possible if you could help me to do the same as you to see if I get a good quality I am ready to do anything to find a solution to my problem.
Thank you to all of you for your help.
