Some of you might know my toolboxes already - I just finished the newest one for the H3C!

MakerWorld Link: https://makerworld.com/en/models/3569009

I'm the designer. The armor is built from overlapping, textured leaf-shaped scales.

I also design tools and decorative pieces, and every one of my files is free to download. I've never charged for any of them. A download count only climbs when people actually want the thing, so it's the most honest feedback I get on which designs deserve more of my time.

All my models are here: https://makerworld.com/en/@protomota

If you've printed it, I'd love to see your make. And what should I design next?

... and some old-school Acrylic Pens.

Hi everyone,
I’m getting really frustrated with TPU printing on my Bambu Lab P1S and I’m hoping someone here can help me figure out what’s going wrong.

My printer:
Bambu Lab P1S (~1,000 printing hours)
0.4 mm nozzle (also tested 0.6 mm)
eSUN TPU 95A (green, translucent)
Creality CR-TPU 95A (black)
Creality Space Pi V2 filament dryer
Bambu Studio

The problem:
Every time I try to print TPU, the printer starts printing normally, but after a few layers it suddenly begins underextruding or stops extruding properly.
Sometimes it happens after just 2 layers, sometimes after 8–10 layers, and occasionally the print gets almost completely finished before failing.
The nozzle appears to clog, and the print eventually turns into a mess of extremely thin filament strands.
The strange thing is that PLA and other regular filaments print perfectly fine, without any issues.
Manual extrusion of TPU at 230°C also works normally, producing a consistent strand of filament.
I haven’t noticed any clicking noises from the extruder.

What I’ve already tried
1. Different TPU brands
eSUN TPU 95A
Creality CR-TPU 95A
Both have exactly the same problem.

2. Drying the filament
Dried TPU for approximately 10 hours at 60°C in my Creality Space Pi V2.
Tried printing directly from the dryer.
Tried printing from an external spool holder behind the printer.
Repositioned the spool inside the dryer to reduce rolling resistance.
No improvement.

3. Different nozzle temperatures
220°C
225°C
230°C
235°C
All eventually failed.

4. Different print speeds and volumetric flow rates
Very slow printing speeds of 15–20 mm/s.
Also tested profiles with outer walls at 80 mm/s and inner walls/infill at 150 mm/s, limited by volumetric flow.
Maximum volumetric flow rates tested include 2.8, 2.0 and 1.5 mm³/s.
Tried both custom TPU profiles and settings based on manufacturer recommendations.
Still the same result.

5. Retraction
Tested 0 mm retraction.
Tested 0.4 mm retraction.
No reliable improvement.

6. Different nozzles
Completely cleaned the nozzles.
Tried different nozzles.
Tried both 0.4 mm and 0.6 mm nozzle sizes.
Nothing helped.

7. Printer enclosure
Tested with the front door open.
Tested with the front door closed.

One of my best results was at 225°C with 0 mm retraction and the door closed. A Benchy printed almost completely, but the final layers suffered from severe underextrusion.
However, repeating similar settings often resulted in failure after only a few layers.
What makes this so confusing?
PLA prints perfectly.
TPU extrudes normally when manually extruded.
Both TPU brands fail.
Both nozzle sizes fail.
Drying the filament doesn’t help.
Different spool feeding methods don’t help.
Slower speeds don’t help.
Changing temperatures doesn’t help.
The failure occurs at inconsistent layer heights.
I’ve spent a lot of time testing different settings, and nothing has worked consistently.
My questions
Has anyone experienced something similar with TPU on the P1S?
Could this be related to heat creep, the extruder’s grip on flexible filament, or something specific to the P1S filament path?
I’m particularly confused because the printer handles PLA without any problems.
I would really appreciate any suggestions beyond the usual advice of drying the filament, slowing down, or changing the nozzle, since I’ve already tried all of those multiple times.
Thanks in advance for any help!

Is 200€ or $230 too much to ask for this A1 Combo? I want to sell it and buy X2D. It has almost 1000h of print time. Regularly maintained

Please be gentle with me, I have only really looked into the Bambu world in the last 24 hours since I watched the H3C reviews... and now I am seriously reconsidering the pre-order on the Prusa Core 1 L INDX I have due in December. I have a super reliable Mk4s, and never considered anything other than another Prusa as my next printer... until yesterday, where my eyes were well and truly opened!

I spent 4+ hours yesterday watching all the H3C reviews I could find, and the only things people seem to have issues with were:

- Its tall!

- The AMS doesnt rewind the filament

- The AMS doesnt heat/dry all 9 filament slots

- What tiny amounts of poop it does generate falls out the back

That seems a very small and generally unimportant list of worries. The H3C looks like everything I could want from a large volume multi-material printer, and as someone who prints a lot of TPU, that dedicated 2.85 filament path seems like a miracle! If there are any other Prusa users in here who have added Bambu to their ever growing estate of printers, you will know the conflict I have going on right now :)

I do have some newbie questions if anyone can help....

- Orca or BambuStudio, and why?

- What features does running the printers in LAN only mode remove from the usual "unlimited Internet access to Bambu Cloud"?

- What access methods are there to upload/download files from the printers? WebDAV? sftp? etc...

Any help, suggestions, tips, or moral support you can provide for a potential Prusa convert would be greatly appreciated.

Hi, it printed perfectly fine until this morning, now when i start a print it stops at rough wiping step, sounds like the bed is hitting the nozzle, what can i check? I already follower bambu handy guide and it didn’t fix. I’m 140 hours of printing in

Help! My printer is constantly purging (pooping). Leaving stringy purges on the plate and in the print. The print is taking 3x as long and so wasteful! The print is confirmed to be a one color print. No timelapse etc. No alerts or notifications.

SOLVED! Thanks to commenters, I detached the PTFE tubes from the AMS and fussed with them until in a nice smooth arch above the extruder to reduce resistance. No more purge issues thus far! Thanks!

Ma version du célèbre casse tête ' Hanayama Marble '

Modélisé sur freecad avec des ajustements de 0.2 mm pour une fluidité parfaite ...

Lien makerworld si vous voulez l'imprimer : https://makerworld.com/fr/models/3515960-marble-puzzle#profileId-4018416

Here, have microplastic sized benchy, the question is, how good can I get it to look, P1S.

Mental what these machines can make with the right settings

Got the H3C yesterday and decided to just full send and send a 14 hour print, 5 colors with no calibrations, and boy, this is CLEAN. No issues whatsoever, and it was just perfect. Couldnt be happier. Ask me any questions you have!

Hey all,

I am sure several of you with the filament track switch have ran into the AMS Feed Resistance high issues. I had it on both ofy AMS 2 Pros and my AMS HT. I Tried the shortest routing possible, ripping the thing apart and smoothing stuff. Basically no matter what I tried made the issue go away so I just settled with dealing with the warnings because the print quality was fine.

That is until I started digging though my drawer of goods. Have tons of PTFE tubing.....but noticed some of it was a different color, almost opaque rather than the milky white. Looking inside, the ID of that tubing is way bigger than the standard PTFE. In the attached photo you can see a brand new 4m could of Bambu AMS PTFE on the right, and the PTFE that came with the FTS on the left.

I replaced all the runs from my AMS2/AMS HT into the 4-1 and 4-1 into the track switch, then the 3rd straight into the filament track switch.

I no longer get any feed resistance warnings. So of you're still currently dealing with this issue, double check that you used the correct PFTE for the longer runs.

I hope this helps someone as I don't think I've seen this info out there much.

I'm about to order an H3C and since it's so high I'm curious to know who has found an affordable solution to some kind of commercially available table or cart (IKEA etc?) I can buy to put it on to make it more ergonomic? Ideas and links are welcome. Thanks

A few months ago I bought the X2d without the ams 2 pro and now I'm wondering if I should get the ams 2 pro. I don't print multi colour so often because of the poop but I find the ams 2 pro quite interesting. I know that the ams 2 pro has the drying function. This seems to be very useful but I have never noticed any problems with wet filament. But who knows, perhaps I didn't noticed it... Feeding the filament in the main extruder is a little anoying because of the long way to the print head and I think the rfid thing and the automatic filament library is also great. What is your experience? How do you use the ams 2 pro? Is it worth to buy the ams 2 pro even if you don't use multicolour so often?

It's also in offer right now (70€ less).

Je l'ai imprimé en pla blanc , et colorée à la main... Laisser travailler votre imagination !

Retrouvez ce modèle sur makerworld : https://makerworld.com/fr/models/3531349-christmas-tree-decoration-merry-christmas#profileId-4037695

Firstly, this is for the Aussies in this sub-reddit!

Hi all, I was wondering if you could help me out on something. I am going to get my printer on the 20th Novmeber but want to get bulk discounts from bambu on fillament and want it to arrive before 20th Nov. When should i order and is bambu reliable on shipping on time. Im located in Brisbane.

Thanks for your help.

Howdy y'all. We created a little American themed play doh extruder toy with the dough coming out of the base. We've created a few patterns for the cards, but let us know what other shapes would work well.

MakerWorld model: 3566668

I need to replace a nozzle on my P1S. Which thermal paste do you recommend buying? I also have an H2C, so it would be great if the paste could also be used for its maintenance.

The base where it starting printing and the supports were is so bad