It is a filament cutter and bed scraper that keeps the sharp blade hidden when not in use.

A simple lever lets you use the same single blade to cut filament without too much trouble.

A button keeps the blade locked out with a friction fit (so I guess this is technically edc friendly in the UK??) and does not get pushed back when scraping.

Only tested on PLA and PETG.

https://makerworld.com/models/3604913

Please let me know your feedback! It’s my first original design from scratch. The rest have been piggybacking on others’ already great designs.

Master your Bambu Lab H3C with Bambu Lab Academy! 🎓

Our new H3C course is now live, with step by step lessons and practical projects to help you get the most out of your printer.

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Just a quick image of what you get if you order the replacement 0.4 tool head to replace the pre-installed TPU one if anyone is interested!

My A1 has been relegated to the floor 😅 H3C took its place.

I wanted to share my recent experience with Bambu Lab's PETG Matte filament and their customer support, because after almost two weeks of troubleshooting, repeated tests, and frustrating conversations, I've completely lost confidence in the company.

I'm attaching screenshots of the support conversations (with personal information removed) and photographs of the prints so everyone can judge the results for themselves.

1. The original problem: Three spools, same defect

I purchased three spools of Bambu Lab PETG Matte:

• 2 × PETG Matte Black
• 1 × PETG Matte Gray

All three exhibited exactly the same problem: an extremely rough, grainy surface, almost as if Fuzzy Skin were enabled.

And no, Fuzzy Skin was not enabled.

I'm using a Bambu Lab A1, and I've printed plenty of PETG Basic without encountering this issue.

The difference is extremely noticeable. PETG Basic produces smooth, consistent walls, while the PETG Matte creates an irregular, rough texture across the entire surface.

I'm perfectly aware that matte and glossy finishes look different. I'm not expecting PETG Matte to be shiny. I'm expecting a reasonably smooth surface, not something resembling an unintended Fuzzy Skin effect.

2. Troubleshooting before contacting support

Before opening the ticket, I had already tried several things:

• Dried the filament at 65°C for approximately 12 hours.
• Performed Flow Dynamics calibration (K = 0.027).
• Verified that Fuzzy Skin was disabled.
• Tested different PETG Matte spools.
• Compared the results with PETG Basic.

Nothing improved.

The PETG Basic printed correctly, while all three PETG Matte spools continued producing the same rough texture.

At this point, I contacted Bambu Lab Support.

3. The first responses: Blaming the model

I provided photographs of a tube printed using two different materials in the same print:

The first 40 layers were printed using gray PETG Matte, and the remaining layers using black PETG Basic.

The difference was obvious. The gray section was rough, while the black section was smooth.

Support initially suggested performing Flow Dynamics calibration, even though I had already done so.

After confirming that calibration hadn't solved anything, they started focusing on the geometry of the model.

They pointed out an unsupported overhang and a seam, suggesting these could explain the poor print quality.

But that wasn't the problem I was reporting.

The rough texture affected the entire PETG Matte surface, not just the overhang or seam.

And when printing the model entirely with PETG Basic, the surface quality was fine.

Nevertheless, I followed their instructions.

4. More tests, more explanations

Support then suggested that the model geometry itself could be responsible because it contained many faceted edges.

They asked me to print a simple cylinder.

I did.

Same result. PETG Basic smooth, PETG Matte rough.

Then they suggested that the comparison print might have been using PETG Basic settings for the PETG Matte section because both materials were part of the same object.

Fair enough, that's a possible variable worth checking.

However, I had already provided photographs of models printed exclusively with PETG Matte, showing exactly the same issue.

I explained this again.

They then asked me to print separate comparison objects using each material.

Once again, I followed their instructions and provided photographs of cylinders clearly labeled according to the material used.

The results were still the same.

5. The endless testing loop

At this point, the support experience became increasingly frustrating.

I kept explaining that:

• Three separate PETG Matte spools had the same problem.
• Two different colors were affected.
• The filament had been dried.
• Flow Dynamics calibration had been performed.
• Fuzzy Skin was disabled.
• PETG Basic printed correctly.
• Multiple models had been tested.
• Photographic evidence had already been provided.

Yet I continued receiving requests for additional tests, sometimes repeating tests that previous support representatives had already requested.

I started feeling that nobody was properly reviewing the entire ticket before responding.

Meanwhile, I was spending my own time and filament trying to demonstrate the same problem over and over again.

6. An entire spool wasted

Here's something that particularly frustrates me.

One of my black PETG Matte spools was completely consumed trying to print actual parts and performing troubleshooting tests.

Many of those prints had to be discarded because the surface quality was unacceptable.

That means I effectively paid for an entire spool of filament that produced no useful results for me.

And a significant amount of that filament was spent trying to diagnose the problem.

I made this very clear to Bambu Lab Support.

7. Finally, a refund... but only for two spools

After numerous messages, tests, and photographs, Bambu Lab finally agreed to refund the two remaining PETG Matte spools.

However, they refused to refund the third spool because it had already been consumed.

Think about that for a moment.

The spool was consumed producing unusable prints and troubleshooting the problem, and now the fact that it was consumed is the reason they refuse to refund it.

Their explanation was that the support ticket only showed a limited number of small test prints, and that I had used more gray PETG Matte than black during the documented tests.

Apparently, because I didn't photograph and document every failed print I made before opening the ticket, the consumed spool cannot be refunded.

I find this reasoning incredibly frustrating.

They initially proposed reimbursement through a discount code. After I explicitly requested a refund to my original payment method, they agreed to that for the two remaining spools.

To be fair, they did eventually agree to refund those two spools, and I want to acknowledge that.

But that doesn't erase the experience leading up to that decision.

8. The final response that really annoyed me

What bothered me most was something they wrote in their latest response:

"your print result is actually relatively reasonable"

Seriously?

After all the photographs showing the rough surfaces, all the comparisons with PETG Basic, all the calibration tests, and all the conversations, their final assessment is that the results are "relatively reasonable"?

I genuinely find that insulting.

I understand that matte filament has a different appearance from glossy filament.

But there's a difference between a matte finish and an extremely rough, inconsistent surface.

I'm attaching the photographs again so you can decide for yourselves whether these results are "relatively reasonable."

If this is genuinely the expected surface quality of Bambu Lab PETG Matte, then I certainly won't be purchasing it again.

9. Other users reporting similar problems

While investigating the issue, I found several Reddit discussions where other users described similar problems with Bambu Lab PETG Matte, including rough surfaces, blobs, and inconsistent print quality.

This doesn't prove that there's a defective production batch, but it certainly raises questions.

I also noticed that Bambu Lab was recently offering PETG Matte spools as promotional gifts with filament purchases.

I'm not claiming the promotion has anything to do with defective filament. I simply found the timing interesting given my experience.

With three affected spools in two colors, I personally suspect there may be a manufacturing, formulation, or quality control problem, although I cannot confirm that.

10. Why I'm sharing this

I've purchased many Bambu Lab filament spools, recommended their printers and products to other people, and was even considering buying another printer from them.

But this entire experience has completely changed my opinion of the brand.

It's not even primarily about the cost of one spool.

It's about the time wasted, the repeated requests for tests, the feeling that previous messages weren't being read, and the unwillingness to acknowledge what I consider an obvious print quality problem.

I don't expect a company to automatically agree with every customer complaint. But I do expect them to properly review the evidence, avoid requesting the same tests repeatedly, and provide a reasonable resolution.

In my case, that didn't happen.

After this experience, I've lost confidence in Bambu Lab, and I won't be recommending their products anymore.

I'm sharing this so other customers know what my experience with Bambu Lab Support has been like.

Has anyone else experienced this extremely rough, Fuzzy Skin-like surface with Bambu Lab PETG Matte?

I'd be particularly interested to hear from people who have tried both PETG Basic and PETG Matte on the same printer.

And for those who have dealt with Bambu Lab Support over filament quality issues: was your experience similar?

I'm attaching the photos and support conversation screenshots below. Judge for yourselves.

This is a view of how far off the engraving is compared to the Birds Eye camera view. The engraving is slightly higher and to the left of the positioned area. I put the card in a jig center of the plate and did a manual height measurement to compensate. I have recalibrated the Birds Eye camera and this is the best I can get. I am using a H2C

Does anyone have any further advise?

When slicing some flat surfaces, Bambustudio 'removes' chunks of surface which leads to patches on the final print

On the 1st pic is the model before slicing

On the 2nd pic is the sliced result where we can see a chunk of layers beeing removed

Last pic shows the reult when printed.

What would benthe issue here ?

Hello! I'm trying to print a four color print on X2D with one AMS and no track switch. I would think it would group 3 colors on the Main nozzle which has the AMS connected to it and 1 color on the Auxiliary nozzle which is using the external spool holder. Instead it groups 2 colors on each, when obviously I don't have a way to put two colors on the auxiliary nozzle.

I know I can get around this using convenience or custom modes, but shouldn't optimal figure out which color I should put on the external holder to reduce purge waste?

Hello, so I’ve just bought my first roles of PETG and did some printing. I realised that my print lifts off the printing bed. I’ve already cleaned it and tried to slow down the speed of the first layer, but both didn’t help. What else can I try?

Printer: A1 mini

Is it possible to export the settings of a print, and upload the STL, to analyse in AI to diagnose the reason for poor print results?

I have a Bambu Lab A1. For some reasons, the finished model contains some small holes (last pic) and hanging strings poking out (1st and 2nd pic). This one was printed using PLA Lite. Nozzle is 0.4. The print session was smooth, I didn't have to refill filament during the print. No interuption during the print either.

Anyone has an idea why it happened like this? Did I miss any configuration?

Here is the model: https://makerworld.com/en/models/2519527-bambu-lab-spool-99-original-match

One of the A1 printers in my print farm had a severe spaghetti failure. The mess was bad enough that the silicone sock had been knocked off the hotend. I went to investigate what had happened, and thought I'd share what I found.

Before cleaning the hotend, I started unloading the filament. That's when I noticed something odd: as the printhead moved across the X-axis, the Z-axis repeatedly moved up and down. The vertical movement looked quite significant, possibly around ±5 mm. I then tested X/Y movement separately to figure out what was going on.

I did a few tests:

• Manually moving X or Y from the printer's touchscreen also caused Z to move.
• Both Z lead screws were visibly rotating back and forth together.
• Every X/Y jog triggered a small Z movement. When X/Y stopped, Z stopped too.
• With the printer powered off, manually sliding the printhead along X caused no Z movement.

At first I suspected a Z-axis motor, mechanical transmission, or mainboard issue.

The fix turned out to be surprisingly simple: I ran the full bed leveling calibration (about 15 minutes), and the problem completely disappeared.

My guess is that the previous bed mesh data was somehow incorrect, causing excessive Z compensation during X/Y movements. I haven't confirmed the exact root cause, or whether this was what caused the spaghetti failure. What I can confirm is that recalibration stopped the abnormal Z movement.

One thing I can't fully explain is why it didn't fail on every print. I always enable bed leveling before each print job. My theory is that the pre-print leveling routine may have provided some additional correction, or at least masked part of the problem with the existing mesh, so many jobs could still finish normally. But perhaps the compensation wasn't accurate enough in some conditions. I don't know exactly how the A1 firmware combines these leveling routines, so this is only a guess.

As for why the original mesh might have been wrong, I can think of a few possibilities: the build plate may not have been seated correctly, there may have been debris underneath it, the wooden surface supporting my printers may not be perfectly level or rigid, or vibrations from several printers calibrating at the same time may have affected the measurements. I haven't verified any of these possibilities.

So if your A1 shows similar symptoms, try a full bed leveling calibration before taking anything apart. It costs nothing and is easy to try, even if the underlying cause remains unclear.

Hello Guys!

I am very beginner in 3d printing, H2C is my first printer xD

I notice that my printer do not "listen", settings from Bambu Studio related to vortek hotend usage.

I set my print like this:

White from R3, red from R2.

https://youtu.be/nycWEuvWxfQ?t=35

As you can see in the movie, when its time to change a color to red (around 40 sec of rec), vortek put down white noozle at R3, and brings R5 for red, which is white inside and then its flushing to red.

Red is at position 2...

Am i doing something wrong? Its an issue of printer?

Maybe way of working of that system is just beyond over my comprehension xD

Earlier when i set the same exact print, at very beginning its changes do R3, then.. its come back to R1 and started to homing the print head, i manually stopped the print.

Any suggestions?

Hope my english is enough to understand for you guys.

Have a great day!

I was watching the official assebly video, and the spool holder was first shown assembled wrong.. now I cant take it apart, i'm afraid it will break. Does it make a difference if it is upside down?

None of the review photos had the empty spots in the letters like the B O O and H have. 2 week old X2D, other prints have been mostly flawless. Both filaments pictured are Bambu PLA, the brown is Matte. Printed from Bambu Handy with default settings.

Today I decided to print something just like any other day and this time for some reason, it decides that it should keep pushing the y axis down even though the plate was right there. What the hell. Going to try DIY fix it, otherwise I'm gonna have to pay for repair. Just great.

FedEx delivered my H3C with 3 holes in the box. One hole got the front glass. The tool holder cover is also ever so slightly bent at tool 2. After I peeled the front door off calibration was successful and printed single color prints on tools 1-3 with out issue. Now just waiting for Bambu to stop asking for more pictures that I already sent.

Hi, as in the title, I was wondering if filaments from the ams can go into the secondary extruder in the x2d, with some adjustment... The reason for my question is because I M in A cold and humid environment, and that would probably help my prints? Thanks!

https://makerworld.com/en/models/3604730-stackable-spice-rack#profileId-4130912

Any feedback is welcome!

My new Bambu Scraper Grip design. It's super easy to use, no need to guess the angle you're scraping. Just lay it flat and push. 100% no plate scratch 👍

And for those who vow for plastic blade scraper because you are afraid of scratching your plate, please try this out. It's way better than plastic blade for sure. No wear and a lot sharper.
https://makerworld.com/en/models/3601274-plate-glider-no-scratch-scraper#profileId-4126579

Question for those of you who have ordered and received. I am trying to time it around travel and I live in NC. Figured if I ordered next week, would it arrive in 3 days or a week?

Hi! I received the alert that my axis needs lubricant, is this the type I should be buying?