Help - printing tall vertical items keeps failing :(

newbie here (previous experience was an ender 3 v2) - just got my p1p, been delighted at the speed and fantastic quality of the prints. Wanted to make a shell for the P1P, looked at the miminal enclosure and started to print some of the parts. Initial test print with the top left front worked beautifully, but since that print, every attempt to print the top left bottom or any bottom piece for that matter fails spectacularly. This morning i woke up to the mess of both right top and bottom pieces failing mid way.


Question, and help - since i’m new to P1P, i’m looking for advice on what i can do to fix this. Initially i thought there was a need for more adhesion, so i did a brim, also added tree supports. This worked well for the single piece test print. The printer seems to have caught on something midway - i’m wondering if the vibration, and the speed nearer to the top is just too much - is there a way to slow down the printer midway though?

Thanks in advance for any help! this is a wonderful printer!

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I cannot provide a solution but noticed the ARC P1P files, when there are two printing similar to how you have two shown on your build plate, whomever created the files for the ARC enclosure added a few ā€œfeaturesā€ if you will that connect both vertical uprights to each other thus providing support for printing tall files. If you can figure out a way to connect the two parts together with temporary structures that are cut away after printing that might just work for you.

I also noticed the same thing if attempting to print a single tall upright print like that, it’s bound to fail towards the top due to not being stable. I discovered that trying to print the ARC files. That process reminded me of my 4 Creality printers and the fun I had with those over the years. BL printers are the next level and I am more than ready to change my ways and go with the new tech, like you said these are wonderful printers!

HTH

do you have an aux fan? turn it off or lower it to ~20%.
wash the build plate with soap and water.
use a larger brim

On your picture I can see a layer shift nearly 10 mm, before the print fails. I had this too while printing the P1P ā€œVisionā€ enclosure and I think it’s related to the tree supports. And to get the parts stick on the plate, I had to shrink the ā€œbrim-object gapā€ to 0.05 mm increase the brim to 10 mm.

@print.in.3d did using regular supports make the layer shift go away? I just wasted another hour with this :frowning:

The P1P ā€œVisionā€ enclosure can be printed without support. For the P1P ā€œMinimalā€ enclosure read the printing section on the details page. The creator has noted ā€œmaybe add supportsā€ and described how to add the supports. You don’t need to support the overhangs (done by auto support). Only add some tree support on the lower part, which help to stabilize the parts on the plate.

The P1P ā€œVisionā€ enclosure can be printed all parts at once, but this has failed for me 2 times. It costs me nearly 1 kg filament. So at the end I decided to print each part at once, which took me nearly 2 hours a part. But it was worth it. :slight_smile:

just read through the minimal shell support instructions like @print.in.3d called out. did what was recommended… still spaghetti city


i’m about to give up on this. i just can’t seem to get this right, support or not… i really wonder if this is a layer shift issue.

No, this not a layer shift issue. It could be something:

  1. bed adhesion: clean the plate

  2. to fast: reduce the speed

  3. warping: check the temperatures and settings for the used filament

  4. hardware: check the nozzle if itā€˜s bent or clogged

@print.in.3d sage advice… i went back and did a more elaborate prainting of the support, i also upped the printing temp by 5 degrees and the bed temp by 5 degrees, mainly to figure out why adhesion fails midway… lo and behold those combination helped… i managed to print 3 pieces so far… fingers crossed that the rest continue to work… thanks for all the help and advice here!

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Exactly the same result as I tried to print the enclosure columns; every attempts went up half way and then the print faltered, collapsing to one side and pulling the object off its supports and base. I have tried slowing down the travel speed to 8000 with same negative results. I will try laying the imported column on its side and add supports to see if that would work. Fingers crossed.

Reviving a bit of a dead thread here - but I can see from your photo the back right part of the build plate is caught on the guides and is slightly raised. I’ve had this a few times if you’re not careful enough with the build plate. It will throw off the auto levelling and the first layer will not go down right, which makes tall prints fail eventually no matter what you do

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Filament used: Brand new roll just opening before the print of Bambu lab PLA matte on default setting
First layer bed temp: 75
Other layer bed temp: 50
Bed is cleaned with warm soapy water and 91% isopropyl alcohol is applied before the print, (I’ve never had bed adhesion issues with any prints in my p1p)

printing a tall print and then suddenly it fails on the top.
Print: åÆč°ƒčŠ‚ęÆ›å·¾ę† Adjustable towel hanger by fmyzyz - MakerWorld

This is not the first time this happened, so far ALL tall prints I have printed with my p1p are failing on the same location almost… It prints so good as soon as it reaches that top point everything goes downhill.

(I have video of what happened too)

Your parts came off the plate, simple as :wink:

The bottom of your parts is not fully vertical, which can introduce a bit of shrinkage.
The brim is not sufficient for the task at hand.

Try this:
Set a brim of at least the same width as your tubes.
Set the object distance to 0.0 to actually fuse the brim onto to object.
If you won’t mind a bit of extra cleaning work use two layers for the brim.
Do NOT use a different bed temp for other layers! Stick with one as otherwise risk that shrinkage will reduce the bed adhesion.
If you ant to be extra safe:
Add some manual tree support between the tubes in the upper half and way before those prints kept failing.
Have not tried if Studio actually supports creating tree supports at an angle between models parts and not just from the plate or a more horizontal area of the model.
If in doubt add a wall between those tubes in your modelling software.
Two lines wide and with a gap of 0.2m to the tubes.
This should give them enough support for those fast moves running over them.
Additionally you could try to place them differently, assuming there is nothing printed on top joining them…
Like in a circular pattern as this would avoid the head running over the surface of all parts so often.
Last option: Add/increase a Z-hop so the nozzle won’t make contact when travelling and tick the box to avoid crossing perimeters.
And if that’s not enough: reduce the print speed for those upper regions :wink:

Thanks for the advice I will watch out for the bed temps, the print already had brim support, they look like this:
image

What actually fixed the issue is reducing the speed, but now I have another issue, how can you control the speed for only the top regions, because now its printing to slow and I know it can move slightly faster for the lower part,
Currently what worked for me is setting the speed to 50, and currently Im printing 1 by 1 incase anything happens I don’t lose more filament
image

Before it was taking 3 hours for all 4 rods now its taking 3 hours for each rod .

Assuming the shapes are all one model or an one assembly of models, then…

  1. Right-click the object
  2. Select Layer height modifier
  3. Look on the left, you have a new option with a from and to set of boxes.
  4. If you enter a range in mm, you can alter values between that range.
  5. Press the plus to get additional ranges if you need.

Each range you create lets you modify most settings in the same way as you can per object.

Using this, you can make changes only at the very top for your specific needs.