One issue after swapping from smoothieboard

mdbergholm

@OwenD Yes - no issue with same hardware/print profiles using smoothieboard. I am currently printing a vase mode print to see if i notice a difference there. After that I will try the other part again using 0 fan. With the prints you saw I am using only 15% fan speed.

mdbergholm

@OwenD So on the left is 15% fan, on the right is 0% fan. The appear the same to me besides the lack of cooling causing some curling on the right side corners...and my bed offset....

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and as for vase mode... Its hard to say I could have picked a better model to do this... but i think i see it there too.

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mdbergholm

@mdbergholm and for anyone looking at this here is just a point of reference. My machine is basically the "Prusa Bear" upgrade frame with moons motors, and duet 3 electronics. Nothing out of the ordinary here. No crazy cooling or heating. All 12v.

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gloomyandy

@mdbergholm Are you using mesh bed levelling? Do you have a fade height set?

mendenmh

Do you have adaptive layer heights turned on in your slicer? If there is a transition 25 layers up in the design, the printing characteristics may change there, due to speed and layer height changes.

sebkritikel

I'd be curious to see a sample GCODE file - I'd be looking for settings dealing with different print speeds for the first 'x' layers, as well as the layer in which the part cooling fan (If used) is fully on (or a permutation - fan speed could slowly lamp up, with full speed being reached at that texture transition, or it might not turn on until that layer).

Phaedrux

@mdbergholm said in One issue after swapping from smoothieboard:

Duet Web Control 3.4.5
RRF 3.4.0
Duet Wifi Server 1.26

Probably won't help your issue, but update your firmware. You're a bit all over the place. Upload this zip file to the system tab.

https://github.com/Duet3D/RepRapFirmware/releases/download/3.4.5/Duet2and3Firmware-3.4.5.zip

mdbergholm

@gloomyandy I am using mesh leveling with the inductive probe. I have not however set a fade height. Didn't know that was a thing. Will read up on it.

I do not have adaptive layers turned on. I am printing at 200um the whole time. The issue will happen on any part not just that one I've been printing could be a plain block. I have also printed this part on other machines without the issue showing up.

I can post up a sample of the gcode if it would be helpful. And I can def update all my firmware this is just how it arrived. I probably should get it all updated anyways.

;FLAVOR:RepRap
;TIME:10119
;Filament used: 7.59597m
;Layer height: 0.2
;MINX:97.941
;MINY:83.064
;MINZ:0.24
;MAXX:152.06
;MAXY:132.639
;MAXZ:49.64
;Exported with Cura-DuetRRF v1.2.9 plugin by Thomas Kriechbaumer
;Generated with Cura_SteamEngine 5.2.2
T0
M190 S70
M104 S250
M109 S250
M82 ;absolute extrusion mode
G28 ; home all
G29 S1 ; load mesh offset map
G92 Z0.3 ; z-offset
G1 X1 Y1 Z0.45 F10000 ; move to prime position
G92 E0 ; zero extruder
G1 X125 Y1 E20 F1000 ; prime nozzle
M83 ;relative extrusion mode
G1 F2400 E-0.55
;LAYER_COUNT:249
;LAYER:0
M107
G1 F720 Z0.44
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G1 X138.87 Y117.077 E0.0179
G1 X138.656 Y117.311 E0.01262

I had to keep cutting this shorter to get it to fit within a post... hopefully its enough to be useful. Note this is gcode with zero fan that still showed the issue. But even when running a fan I had it set to turn on at layer 2 to 15% and I watched it physically start on layer 2 as expected.

I am about to be travelling for two weeks so I appreciate all your suggestions and I will work on them when I return.

mdbergholm

Just as an update in case anyone else comes across a similar issue - I haven't gotten it totally fixed but it seems to be related to my thermistor settings for my hotend. I was using a config that I found from CNC Kitchen (he swapped a Prusa to Duet) and I am using the same heater/thermistor so I assumed it would work fine. Once I found the datasheet for the thermistor and entered the values from there it seems to be a lot better. I am going through tweaking and PID tuning now but I am relatively confident that with some tuning I can make this defect disappear. Something to look for if you run into the same problem.

mdbergholm

@mdbergholm and just to correct myself - the issue was NOT temperature related. My layer lines are super clean now that I have my hotend dialed in, but that was not what was causing my defect. I had M376 H5 set in the probe section of my config. I copied my config from CNC kitchen since I was using all the same hardware I was trying to make it easier for myself. In the end I went through line by line and culled anything I didn't deem necessary and verified on the duet wiki any line I didn't understand. Setting M376 H0 keeps mesh compensation on for the whole print and no more issue right at 5mm height...

Again...just in case anyone else runs into it. Check fade height. Thanks @gloomyandy for suggesting it.