[Is there a way to disable active leveling for ultimaker 3 extended?]

I know this is not a recommended action by ultimaker and i take full responsibility for it. Saw another post about disabling S3/S5 but can't find anything about 3X, does anyone know how to do it?

[wood PLA prints keep clogging]

15 minutes ago, Dustin said:

It might be wet? Generally wood filaments are VERY sensitive to moisture.

I would say you need to use a larger print core.. because wood filament usually has big chunks in it.. but 0.8 should be more than enough there..

 

Maybe double check your front cooling fan is working correctly and didnt get clogged up during these tests?

Is it possible to pause in the middle of a print to clean the inside of a printcore? after dozens of tries this looks like the only solution

[wood PLA prints keep clogging]

12 minutes ago, Dustin said:

It might be wet? Generally wood filaments are VERY sensitive to moisture.

I would say you need to use a larger print core.. because wood filament usually has big chunks in it.. but 0.8 should be more than enough there..

 

Maybe double check your front cooling fan is working correctly and didnt get clogged up during these tests?

relative humidity has been under 30% most of the time. should i bring a dehumidifier...?

 

the fan is working probably. sometimes i notice that the prints actually last longer if the fan speed is not too high... makes me wonder what happens in the printcore, there might be a sweet spot where the fan is JUST ENOUGH to produce a constant flow

[How to remove retraction that happens at walls?]

40 minutes ago, sycamore361 said:

something weird about the Preview mode is that for some reason it only shows the model in translucent grey, but not the paths of printing... it used to not be like this. paths of printing only appears if i click the "play" button at the bottom

 

found out what the issue is... the layer was not turned on lol

 

thank you both for commenting!

[How to remove retraction that happens at walls?]

13 minutes ago, gr5 said:

I was thinking of coasting but coasting doesn't retract so I didn't mention it.  It should have the dark blue line (no retraction).  It also doesn't extrude.  So instead I mentioned about the colors to see if it's really retracting (I think it wasn't retracting).

something weird about the Preview mode is that for some reason it only shows the model in translucent grey, but not the paths of printing... it used to not be like this. paths of printing only appears if i click the "play" button at the bottom

 

[wood PLA prints keep clogging]

So far it seems like clogging happens in a very arbitrary way. Image attached is showing only a few of the prints that failed because of clogging.

 

So far I've tried:

 

- printing a temperature tower to find the best temperature

- tweaking print speed, flow rate, fan speed, combing, temperature, retraction

- trying to manually unclog the printcore during printing

 

With all these methods, i've been able to make prints last longer before they clog, but it seems like manually unclogging the printcore is the only reliable way that has made successful prints.

 

I'm using a 3 extended with a 0.8mm printcore. Anything I might be missing? Will newer versions of printer, say S5, inherently better for printing wood PLA?

[How to remove retraction that happens at walls?]

On 4/2/2023 at 7:50 PM, gr5 said:

Do you have combing enabled?  Combing enabled will do fewer retractions.  Combing disabled will do more.

 

When you go to PREVIEW mode set the mode so it shows moves in blue.  Dark blue is non-retracting moves.  Light blue is retraction moves.  Are you seeing light blue moves?

i think i find the answer, by enabling coasting that tiny bit of retraction is gone

[How to remove retraction that happens at walls?]

I have a 3 extended printer. So far I've tried to disable any retraction that is possible in Cura's settings, and it turns out that all the major retraction disappears. The only part I don't understand is retraction still happens at walls:

 

1. Filament is retracted a few mm back when printing an inner wall

2. After the inner wall is finished, filament is pushed forward a little before it prints the outer wall

3. After the outer wall is finished, filament is pushed forward a little again before it starts to print the infills

 

 

Note that my model has several loops of walls on the same layer, not sure if that has anything to do with the retraction. See image attached.

 

I'd rather have the filament not retracted at all despite the side effects that might cause. Any idea how I can disable it?