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Nozzle Clogged? Detraction settings wrong? ​  

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SirHair
(@sirhair)
Active Member
Nozzle Clogged? Detraction settings wrong? ​

 

 

 

I'm printing the test print of  https://www.printables.com/model/3710-collapsing-pirate-sword-print-in-place

On the first layer, it seems to print in midair at the seam, but then eventually it connects to the bed. I've tried different Z settings. Videos have Z of 1.645 (I thought I was too close causing a backup in the nozzle) and Z of 1.7

 

I'm printing prusament galaxy black 215Cnozzle /60C bed (all layers)

I just switched back after printing with Creality Ender Black, which required quite a bit of fine tuning. For switching back, I used the default ".2mm quality" "prusament PLA" and "Original Prusa mini & mini+" settings in prusaslicer. I only changed seam location to "back"

My guess is it's a blockage, but the printing can continue after the first layer without problems (if it has a decent place to land).

Link to more images and videos:  https://photos.app.goo.gl/XtAYrs9s4B7SGBXS9

 

Posted : 04/03/2023 12:05 am
SirHair
(@sirhair)
Active Member
Topic starter answered:
RE:

I've tried cold pulling and cleaning the nozzle. And tried Vanilla white

https://photos.app.goo.gl/yUvM3pL44yxE8bcB8 (Video of issue: Post cleaning and cold pull) 

 

Could it be the updated filament profiles?

This post was modified 2 years ago by SirHair
Posted : 04/03/2023 8:28 pm
mark
 mark
(@mark)
Reputable Member
RE:

Your Z height is likely not set right, but it comes down to these steps first:

1. Dry your filament in a dryer. A box with desiccant won't do. Dry filament always, always, always prints better, before you do any other tweaking.

2. Clean your print bed. For PLA, it will not stick well if there are fingerprints or other contamination. IPA works well, but dish detergent may be needed also.

3. Then, I think your Z adjustment is too high. You have to adjust by very small amounts when you finally get to the right setting. 1.645 and 1.700 are way too different to make much sense of the results. When adjusting, the square should be all connected as one piece, not individual lines of filament.

After all that, then start tweaking if you don't like the results.

Regards,

Mark

This post was modified 2 years ago by mark
Posted : 05/03/2023 3:39 pm
SirHair liked
SirHair
(@sirhair)
Active Member
Topic starter answered:
RE: Nozzle Clogged? Detraction settings wrong? ​

Thanks Mark!

I've been using IPA, but think dish detergent is a key thing I hadn't thought about -- it seems at times it will print and look right but then curl right up. I wonder if the Ender filament had something in it that changed the plate properties making it less sticky.

Also agree that tweaking the Z height is important. I did recently replace my heatbed, but didn't think about how much that could affect the z height. It "feels" almost dangerous to have such "high" z height numbers... but the new heat bed is a new heat bed, not the old one.

Appreciate the answer!

Posted : 05/03/2023 6:21 pm
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