Nozzle detach the part - Chiron Duet 2 wifi

genioluiz7

@droftarts said in Nozzle detach the part - Chiron Duet 2 wifi:

il gcode che causa il problema

A Former User

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droftarts

@genioluiz7 It looks from your gcode file that you are printing 0.1mm layer height, and that the line width is 0.2mm. This sounds very small, and probably doesn't suit your nozzle; I think the Chiron comes with a 0.4mm nozzle. So I think there are some issues with the settings you have chosen in Cura. Can you post a picture of the settings you are using?

Looking at your config.g, I think your maximum instantaneous speed change (aka jerk) M566 Z value is too high for a Z leadscrew system. 60mm/min = 1mm/sec, and it may be that short Z moves don't complete properly due to inertia on the Z axis. Try reducing M566 Z to 10, by changing the following line in the '; Drives' section of your config.g:

M566 X900.00 Y900.00 Z10.00 E120.00 ; set maximum instantaneous speed changes (mm/min)

Maximum speed (M203) and Acceleration (M201) look about right to me.

If that doesn't help, check that the filament diameter is set correctly for the filament you are using, in Settings > Printer > Manage printers, then select your printer from the list and click 'Machine settings', then check the filament diameter on the 'Extruder 1' tab. Nozzle Settings > Compatible material diameter should match the filament diameter you are using.

Finally, have you calibrated the extruder? See https://docs.duet3d.com/en/How_to_guides/Calibration#h-3-calibrating-extruder-e-steps-per-mm

Ian

genioluiz7

@droftarts you're completely right.
Do you want to see only the "quality" parameters? Or all the other too?

![be9e55a0-b766-49be-9fc5-a4ab2800dd4d-image.png]

This is the nozzle I'm using. It's 0.4 mm, as you presaid.

I mesured the width of the extruded filament and is more or less 0.4 mm as you can see in the picture below

Have you calibrated the extruder? Unfortunately not yet. I start now. And I'll let you know the results.

genioluiz7

@genioluiz7
I've just tried to print something easy and the resut was amazing. Really better compared to the last one. But I can see that the bottom of the part is widther compared to the rest of it. What do you think?

droftarts

@genioluiz7 Did you change the M566 line? Did that help?

With the line width, you generally don't go thinner than your nozzle diameter. Check that your nozzle diameter is set to 0.4 in in Settings > Printer > Manage printers > Machine settings > Extruder 1tab > Nozzle Settings > Nozzle size

Ian

droftarts

@genioluiz7 It looks like the nozzle may be a bit low on the initial layer height, along with some extrusion issues (possibly retraction) and over-extrusion. It looks like there's something going on at the point where it changes from solid layers to infill layers.

0.1mm layers are about as low as you can go, and causes other problems, especially with overhangs and bridging. It might be worth starting with a higher layer height (eg 0.2 or 0.3) to get things working well, before reducing the layer height.

Ian

genioluiz7

@droftarts

droftarts

@genioluiz7 That looks okay. I think it's just tuning your Cura profile, and tuning the printer for speed, acceleration, retraction, pressure advance, etc etc... . Follow the Calibration section here https://docs.duet3d.com/en/How_to_guides/Calibration, or Teaching Techs more exhaustive guide here:https://teachingtechyt.github.io/calibration.html#intro

Ian

dc42

@genioluiz7 said in Nozzle detach the part - Chiron Duet 2 wifi:

@Herve_Smith said in Nozzle detach the part - Chiron Duet 2 wifi:

era l'unica cosa che potevo trovare per risolvere il problema

based on what can I understand that the problem is caused by the motors?

Does it have 2 Z motors? Is there a model number on them? Are they connected to the two Z motor outputs of the Duet 2?

Duet 2 has the two Z motor connectors wired in series. That's generally the best arrangement if the Z motors are similar to the XY motors. However, after Duet 2 was released some printer manufacturers started using low current high inductance Z motors that they intended to be connected in parallel. If your machine has that type of motor, then the series connection will reduce the maximum Z speed that can safely be used.

genioluiz7

@dc42 this is the actual configuration:

The 2 calbes connected bottom right.

Following the pictures of the z motor

and of the x motor

They seem the same.

Let me know what you think?

dc42

@genioluiz7 if you have a multimeter then you could unplug the X and Z motors from the Duet and measure the resistances of one phase of each.

genioluiz7

@dc42 Where have I to put the positive and the negative tips? Can you describe it more precisely?

genioluiz7

@droftarts

I follow the Teaching Techs guide here:https://teachingtechyt.github.io/calibration.html#intro (This one not jet
https://docs.duet3d.com/en/How_to_guides/Calibration ) and the tests are all good.

Now I'm printing something bigger and this what is happening:

This is the g.code I'm using https://we.tl/t-33Er3mvoe0
What do you think? Is that a problem of speed, temperature, cooling, retraction or adhesion?

To be more coplete I post also the picture of the tests

Phaedrux

It still looks like over extrusion to me. Try reducing the extrusion factor to 90 or 95% and see if it helps.

genioluiz7

@Phaedrux
Z Seam Alignment: Sharpest corner
Flow: 100%
Results:

Z Seam Alignment: Random
Flow: 95%
Results:

Furthermore I saw that this component (in the following picture) is broke. Where can I buy it?