ASA print fail

[user_3776709389]

Hi all
Hope this is the right place for this post.

New to printing, after 300hrs of successful PLA and PETG prints with no issues, I tried my first ASA print and ran into trouble.

Freshly opened ASA filament pack
Dried at 65° for 5hrs (highest temp my dryer goes)
Loaded into AMS on P1S, stock 0.4mm SS nozzle.
Bambu studio recognized it as ASA
Chose it for the object, chose 0.2mm standard and pressed go.
I did not alter any of the stock settings.

As you can see it failed.
Bottom few layers seemed ok, then it unraveled and somehow continued printing.
Curiously the support tree stayed put.
Not expecting problems, I did not monitor the print to see what temperature things got to.

I have no idea what to change before I try this again and would appreciate any guidance.
Thanks

[lion7718]

You should always add a Brim with ASA…6-10 lines at least…or it will warp.
Also, turning off the cooling fan helps. If BS saw it as ASA, then the fan was probably already set to off or a very low speed.

[JonRaymond]

How are you cleaning your bed?

Also here is a thread with some good ASA/ABS tips.

Printing ABS on PEI Plate Best Practices

This is what works for me. Ideally you want the chamber temp as warm as possible. This is how I “preheat” the chamber. Turn the bed on full (100-120c depending on your supply voltage) Home the machine (to bring the bed to the top) Turn on the aux fan so it will blow across the top of the hot bed. This will get you a chamber temp or 45-50ish in about 10-15 minutes. Keep the build plate as clean as possible. Oils from your hands cause adhesion issues so be very careful when you handle the pla…

No fuss ABS/ASA tips and tricks to minimize warping

I print almost exclusively with ABS. Some parts pretty much max out the size capabilities of the bed. 12.5" part corner to corner. These size of parts are the most prone to warpage. [1740589252593] What works for me: Parts with high wall counts and/or thick top layers are most prone to warping. Avoid or model in relief cuts where possible. Where possible slice problematic parts to print per object vs a plate full of parts printing a full layer at a time. This seems to keep the individual pa…

[user_3776709389]

Thank you
I will give that a try.
The Others>brim type dialogue was set to auto
I assumed it would add it if needed

It has also been suggested:

1. Clean and apply a light layer of glue stick to the plate

2. Slow first layer to 15-20 mm/s
   Is that under: Global>Speed>Initial Layer

3. Slightly squish the first layer (lower Z-offset by ~0.05-0.1 mm)
   Is that the under: Global>Quality>Layer Height>Initial Layer Height

4. Increase bed temperature from stock of 110°C by 5° to 115°C

5. Turn off chamber cooling fan

I hesitate to mess too much with stock settings since they have worked so well for me thus far.

What do you think of those suggestions?
Do I have the settings locations right for #2 and #3 and where do I find the locations for #4 and #5?

Hopefully the addition of the brim alone will suffice.

Thank you

[JonRaymond]

If you’re print with Bambu filament, the stock profile shouldn’t need tweaking if you have a clean enough bed. Dish soap and hot water. Really scrub at it with a clean brush and pat dry with a paper towel. I add a brim with zero “object-brim gap” for long parts or ones with a high wall count.

You won’t be able to heat the bed past 100c with a P1S.

[lion7718]

If the print comes off are you added a Brim, you will have to use Glue.

[lkraus]

Filaments that require an enclosure (ASA, ABS, PA, PC, etc) generally also require pre-heating the closed chamber.

Manually set the bed temperature to at least 100°C, and run the auxiliary fan to circulate the air. Wait for chamber temperature of at least 45°C and then wait at least ten minutes more before starting the print.

[Bruegge]

Try to decrease the infill,
same quantity of bottom and top layers,
try to increase the Chamber temps up to 50 deg.
A perfect first layer is necessary
If you have edges, use brim ears
ASA and ABS don’t need to dry, saves energy

[blchandl2]

No matter what I do, I have to use glue with ASA.

[user_3776709389]

Thank you
Yes i only have printed with Bambu brand filament
I had recently cleaned the plate by wiping with IPA but not immediately prior to this run.
I am always careful when reminding parts to not touch the plate or use tools to remove parts.
I will give it a good wash regardless.
Thanks

[user_3776709389]

Thank you
Where are the menu options to accomplish this? Are they in Bambu studio or on the P1S LCD?

[JonRaymond]

@user_3776709389

by wiping with IPA

Personally I had terrible adhesion when using IPA to clean with and trying to print ASA/ABS but others it seems to work okay.