I’ve recently purchased PLA Silk Dual Color filament from BambuLab, but I’m encountering consistent failures with this filament. In the past, I’ve had flawless prints using BambuLab’s regular PLA and PETG filaments, but this one keeps failing. I use an A1 printer with an AMS and have tried both 0.4mm and 0.6mm nozzles, yet the issue persists.
Every 10 minutes or so, I receive the error code [1200-2100-0002-0006] [160815] stating: “Failed to extrude AMS1 Slot1 filament; the extruder may be clogged.” However, I’ve never had a clog in the extruder. I’ve noticed that just before the failure, if I manually push the filament slightly in the AMS, it resumes working, but the problem reoccurs.
I’m unsure what I might be doing wrong. Could you please provide guidance on how to successfully use this filament?
You’re not doing anything wrong per se. Silk filament, especially Bambu Silk is persnickety. It prefers higher temps than the default profile calls for. Try increasing the temp in the filament profile by 5 or 10 degrees.
There are a few threads on the forum concerning Bambu Duel Filament.
The consensus is that it is not round, so it get chewed up in the extruder gears…causing a clog.
Interesting–I have a different setting for filament temperature on the X1C. The one you point to is not the temperature setting for the hot end. It’s only a suggested range of temps for the filament. It doesn’t change the temp of the hot end. Nozzle under Print Temperature is the one I change to heat filament. Is this something with printers other than the X1?
For some reason, I can’t upload a modified .png or .jpg file. I drew an arrow pointing to the Nozzle line, but that version doesn’t show up on the Upload.
Unfortunately, it keeps failing
Tried 135, 140, 145 — the same result. I will try 0.6 nozzle and 140; if that doesn’t work, I will discard this filament.
Well, it sucks that you’re still experiencing this issue.
I understand your disappointment with the poor performance of that spool—it’s frustrating when filament doesn’t meet expectations. However, I suggest holding onto the spool. As you gain more experience and learn new techniques, you might want to revisit it to see if those tricks can solve the problem.
For example, I had a similar issue with a spool of Bambu Silk that was giving me a lot of trouble. I kept it around, and later, when I learned that Bambu Silk needs to be dried like PETG, I tried it again. Surprisingly, drying the filament fixed the issue.
So, while this spool might not be working for you now, it could still be valuable for future experimentation. Learning what doesn’t work can be just as important as finding what does. Keep at it—you’ll get better with each challenge you overcome.
Here is an example of what I mean. This is a year-old spool of Bambu Gold Silk. Take a guess which model was wet and which one went through the dryer? And Bambu states that drying for silk is optional… go figure.
The point is, had I tossed the filament after being frustrated, I wouldn’t have had something to test out a new process I discovered. Think of it like they do in the crime movies where evidence gathered at a crime twenty years earlier yields nothing until a new method comes up and solves the crime. I think 3D printing shares a lot in common with that analogy.
The more I use this filament, the more I think your statement is spot on. Do you have any solutions to this problem, or should I just forget about it and get a dual silk filament from another brand?
Update:
I reached out to Bambulab support and after thorough validations and discussions, they provided me with the same filament from a different batch. The new filament works great, made two 9-hours prints, and both were perfect.
You have a few whisps on the top. If you have a safe hot tool, a kitchen blow torch (the one for desserts) as an example, you can easily melt those off.
Use at a distance, you are not aiming to burn the model, and a light amount of heat will shrink them away.
I had a similar problem with the dual-color. I wasn’t jamming, but my prints would crumble in my hand with very bad layer adhesion. Come to find out that the filament was measuring 1.8mm in one direction and 1.55mm in the other direction. There was about a ±0.05 in my measurement across several different areas. Opened a ticket with Bambu and they confirmed they had a bad batch of the Dual-color and are sending me two new spools. I did do a little math for the area of an oval at 1.8 x 1.55 vs a circle at 1.75 and found the oval was about 10% less. I changed the flow ratio from 0.98 to 1.1 and just did a test print and it turned out ok. So I was definately getting under extrusion from the filament, but I found a few posts on reddit where the diameter was either too small in some areas where the feed gear was slipping or too great and causing jams. So I don’t trust this filament for any large prints and have given it to my wife to use in her 3d Pen instead.
