Didnt slow down. Stopped for fast food, apparently.
Theres something Im missing besides that though. Its getting way hotter than the readout says. Gotta search for my temp gun this weekend. I should have also applied new boron paste when I got it. I usually do this but was so excited to see some results.
As a matter of fact, I do! First of all, I’m going to credit these observations to a youtuber named “Lost in Tech” who has done the most thorough youtube investigation of printing tpu on different printers that I know of.
Although I think #1 is widely known, I never heard him voice any direct criticism toward reverse bowden. However, like you, my thinking is getting rid of the ptfe tube entirely should make for a more uniform feed, without random stiction possibly interfering. But TPU can be so droopy that it can’t self support, and that leads us to your picture.
I think the solution is position the TPU filament spool well above the printer so that the TPU is pulled in nearly a straight line into the printhead. In the case of the X1C, this will mean removing the lid. In my case, I chose to buy an inexpensive refurbished double-pinch extruder printer (in this instance, a Creality CR10 XE) and dedicate that to printing TPU, and so here’s a link to a couple of pictures showing how that looks:
I think in retrospect I didn’t really need to buy this extra printer, but at the time I was inexperienced and was afraid TPU would jam up my X1C, which I wanted to keep “at the ready” for printing more regular filaments. Anyway, it was so inexpensive that I considered it cheap insurance.
Worthy of note: I didn’t want any drag at all (or, failing that, the least amount possible) as the TPU emerged from the drybox, so the filament comes off the spool and goes through a somewhat large hole that I drilled into the drybox for this purpose. To keep the filament dry, I pump desiccated air into it to maintain a positive pressure using an aquarium pump. I run that 24/7, and because so little positive pressure is required, it can go for weeks before I need to change out the desiccant.
Thats so funny because I kept my cr10s pro for a long time, just for tpu. They do great tpu prints.
Thanks for the other tips too.
It’s a sex symbol…by itself…
It’s a Plus-sized printer
Hi. This is likely a stupid question, but give me a discount for not having an XL: is it possible to lay out the tube?
Not sure, honestly. Laying the tube out may cause even more bend at the entry point to the toolhead. I just went straight to this because its what others were doing. Ive added it to the list of things to work on this weekend lol. Probably going to try and just hang the roll above the printer somehow like @NeverDie suggested.
Im rerunning the k2 benchy at 190c and its looking really good so far. In normal Jessie fashion, I forgot to adjust the min layer time/speed, so ill have to try and slow it down manually at that point.
Having some back issues, so I took tonight off work to heal a bit. Maybe ill do some reading in the creality dungeons. If that is a thing anymore. I think most people are here now lol
In all honesty, after ive figured it out, ill probably just go back to running straight tpu on the bambus.
even at 190c, still looks like plenty of heat. Very glossy. After this, im going to run one at 220c but twice the speed.
here we go. This was at 190c on the k2. I like that theyve caught up, it did take a few years lol. And now the new bambu, if affordable, will probably leap frog everything again. Hope they can keep up and get the train back on the tracks.
I think I figured out why they added these.
Edit: TPU conclusion is that I shouldnt have copied over max flow rate from the generic TPU profile on bambu slicer. Its 3.2. Creality slicer had it set at 9, which I changed because I assumed they were smoking something. They were right. Ran a benchy at 6mm3/s @200c and it was good. Now running one at 9mm3/s @200c and it looks even better so far. Ill keep speeding it up until it needs more heat. See where I end up when Im at 220c.
Im running one on the XL at 1.5x speed also, just to see.
Final addition
I was running the xl and k2 way too slow for this specific TPU. Probably the plus 4 also. They all have longer melt zones. Lesson learned. Thanks for coming along for the ride with me. I’ll update the old post with the rest of the calilantern results in the next few days. Ill stop bogarting the thread now. Oh and to save a post, theres some missing parts from the ratrig box lol. fml
k2 at 3x max flow rate. Really only dropped it from a 80ish minute benchy to 49 minutes at 200c
XL at double max flow
Short clip of the k2 speed of this benchy.
I give up. Is this about some Creality printer?
How old are you? Just curious.
This is a topic about “new printer announcements” and not “bambu printer announcements”.
Enjoy the work that is being laid down for others that like to be informed. Don’t be that guy… just “enjoy the ride” 
Ohhhhhhhhhhhhh thank you for clearing that up for me! So this is about any 3d printer in general.
Is there a Creality version of Makerworld? My friend has one of their printers and it needs some specific files.
Exactly. It’s a way for people to share their findings with their “new shiny toy” and help others evaluating if it’s worth it or not and at the same time, giving others to know about new releases.
There is. They have their own platform, just as Makerworld.
Creality Cloud
Then you’re definitely in the wrong place, and by that I mean although you can find some infos about Creality printers here, this is not a Creality forum, and Makerworld ain’t a Creality owned/operated platform. Tell your friend to Google it. Though he might very likely be disappointed on what he’s gonna find there.
…or, in not so many words, he’s definitely gonna be disappointed of what he gonna find there.
That is until their cloud suffers a nervous breakdown, like Bambu does (now and then), and one either can’t access it anymore, or worse, loses whatever one stored there… my point being that one should never trust the “safety” of another one’s computer, more than one trusts his own. Either set up a NAS, or an offline storage bank, and one is way safer that way.
I have my own cloud. No problem there 
Actually, i have been thinking of expanding from a minilab to a full sized lab just to expand on that idea.
Time to let go of my synology products for the same reason as to what bambu is doing nad that is ocking people in with less and less functions over time.
Depends on one’s needs, I guess. I’m quite content with my storage solution for the time being. I might get to the point where I’ll need to expand and diversify my storage, but for the time being I deem 400Tb as sufficient. For now anyway
