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  1. Dear All, I hope that you can help me to solve my printing problem. I want to print multiple slider in one "go" and in the past this worked with an acceptable result. Now, the print gradually gets more and more holes. How can this be happen? Do you have an idea? I am using: Ultimaker 3 extended Ultimaker TPU95, white Cura 4.7.1 (although the file might be one version earlier) The Cura file as well as a photo are both attached. I performed already multiple prints prior, using or not using the "support" function/ same material as wel
  2. Hi, ich drucke mit einem Ultimaker 3 Extended und mache seit kurzem ein paar Testdrucke mit einem TPU85A Filament. Es lässt sich gut drucken nur kommt irgendwann kein (oder sehr wenig) Filament mehr aus der Düse (siehe Bild im mittleren Bereich), sodass eine offene Struktur entsteht. Ich habe den Druck dann gestoppt und beim Extruder hinten den Druck erhöht. Dieses hat zunächst für diesen Druck geholfen (siehe Bild im oberen Bereich). Beim nächsten Druck ist das Problem wieder aufgetreten. Ich hoffe ihr habt eine Idee, was ich noch ändern könnte, damit dieses ni
  3. Hi, Is there a means to change filament type mid-way through a print? I want to print one part in PLA, and another in TPU. These require different temperature settings, it isn't as simple as inserting a new reel. The second print head of the Ultimaker 3E is occupied with PVA support filament. Thanks!
  4. I'm printing with TPU95 on a UM3 using the default settings in Cura. The material oozes from the print head faster than it's being fed. The part has some small upward facing features and the oozing causes material to pile up in blobs when small the features are printed. Has anyone else had this problem? Would lowering the print head temperature help? By how much?
  5. I was looking into a way to occasionally print Ninjaflex or other real flexible materials (85A) There's no way you'll be doing that reliable with a bowden setup (ok, I've seen people using oil in the bowden but nahhh), so I compared a quick and dirty direct drive conversion on an Ultimaker2 head (tested on my DIY GO) and on the ultimaker S5 **** first a warning, Ultimaker does NOT want you to open the S5, it contains an open style high voltage power supply, so it's DANGEROUS!!!, also the electronics can be damaged and I'm pretty sure you loose your warranty.
  6. Hi, I tried for the first time today to print TPU, but i got an issue. The filament extrusion isn't constant. It print sometimes just few drops then continue normally, and then some other drops, etc. Most of the time, it just print tiny drops instead of a continuous line. My filament is new, I opened it this morning and it was sealed. I already print ABS, PETG and ABS, and everything was fine. I changed my nozzle and changed several time my temperature (from 200°C to 250°C by increment of 10°C), but doesn't solve my issue. I also print at 20mm/s and i use Cura I use an Anycubi
  7. Hi, I am trying to print a double ring as per the attached photo with TPU95 white. However, I have tried several support options from CURA with no success. Any advice?
  8. Hi, I am currently experimentally trying to find optimal settings to print TPU with PVA for the model shown below. What my main problem is that whenever I remove the PVA from the structure after it is done printing, the TPU has very poor quality (i.e rough and uneven surface). I tried increasing the distance between the support and the main material with marginal improvement. I would be glad for any advice on how to fix this issue. Thanks
  9. Hi, I am curious on if there are any non stick surface materials that I can apply to my structure. Basically, I want the structure to "pop-up" to resemble something like this: The issue is that I want to print this structure in one step, so I was looking into ways that I can 3D print this without support materials. A solution I was thinking was to separate the structure into two layers as shown below: After printing L1, I wanted to know if it was possible to apply some sort of material that would allow me to print L2 on top of it and give me the "pop-up structure." I
  10. Hi, I've been printing for a while now using two Ultimaker S5. The only problem I encountered so far is that when I am printing with TPU, the printer repeatedly stops the print and prompts the message 'one or more materials seems to be empty'. I'm printing with regular Cura settings and does not have altered the tension on the feeder gear. What can I do to prevent this error message? Lowering the print speed or feed rate? It is a real bummer to come back after a weekend and only see some layers being printed and this message on display. Regards, Michiel
  11. My goal was to print a part in nylon with a TPU overmolding. It seems like there's no way to set this up in Cura. When I open a STL file that has two bodies, they are not recognized as such and there's no way to assign an extruder to a body independently of the other. If I open two STL files, their position in space relative to one another is not respected. I can move one body to try to get it near where I want (after I discovered the option to disable "Automatically drop models to the build plate") but it's not precise, especially with Cura's display and perspective view.
  12. Hi Everyone, I tried using ninjaflex cheetah and filaflex 80 filament with the US5 for the past week. I am having trouble with it. I set the heat from 210-230 degrees; the filament extrudes when it’s not printing and prints when it’s switching to the core BB. I need some help. I worked with U2E+ with the same TPU with the TPU95 settings, it works! I have no idea why I having this problem with the US5? Any help to solve this problem will be great!
  13. Hi everybody, I'm trying to print a piece with TPU but when I try to slice it CURA don't show me how it has worked. In the first picture can be show the piece without any slice, and in the second one the layer view can be seen with shadows. If anyone can help me I would be so proud.
  14. Hi,everyone...I used TPU filament to print out the product but the surface is very poor. The temperature set as standard which is 250 degree..Any methods can smooth the surface of product? Please help me solve the problem and give suggestion... The picture below show my product. Thanks
  15. I've recently started printing a set of stoppers out of Ultimaker's TPU95 material. This material is great and extremely shock absorbent, but it tends to string more than other filaments due to its flexibility. This becomes a slight issue when printing two of these stoppers in the same build tray, since when it goes from one tower to another it will string and leave a small blob of material on the surface of the part. In other materials these blots can be easily taken off, but with TPU it becomes harder since the material tends to elastically stick together. Has anyone found any particularly g
  16. For some filaments (PVA & nylon in particular) one of the best ways to dehydrate the filaments if they become too humid is by putting them in the oven at 170 degrees F for approx. 6 hrs. But is this safe? I put the nylon filament in the same oven that I cook pizza in, so is my pizza in any way contaminated with nylon? Thx for the feedback, Baird Bankovic
  17. I would like to print a part in TPU95A on my UM2E+ but the part need to have support because of flat surface so i was wondering if the support can be in TPU95A?
  18. Hey everyone. I tried to start printing some TPU 95A today and I had issues with stringing and the interlayer adhesion. The piece I made has already cracked in 3 different places. I am using the advanced printing kit cover with a polybox to keep the filament from getting too much moisture. The RH is about 56% because I live in New Orleans. Please see some photos below.
  19. Hi everybody I would like to know if there is any support material for TPU. I have tried with PVA but the results were unsuccesful. Thank you for your help.
  20. Hi everybody I´m extruding with red TPU95 and PVA testing the compatibility. The problem is as soon TPU95 stop extruding for building, and the PVA start printing, the TPU95 keeps melting a short flow of material instead of stopping. As a result, There exist an undesireable overlap between of both materials. I've tryed changing the "retraction extra prime amount" to 0 but It doesn't work. If anyone can help me I would be so pleased. Thank for your attention
  21. Hi, Earlier one of our printers just stopped printing, with no error message. I have just run a different print on it and it has done the same thing. With a few minutes left it has stopped moving, but the timer has continued to count down to 0. Where it just stops at 0 time remaining. The print head lights are on yellow, but the controls are unresponsive on the front. The display says the heads are still at working temperature, but even the frame light brightness does not change when you vary the %. Any ideas?? I cant afford to have an unreliable printer,
  22. I want to print TPU without many string as possible with my UMO+. Can I put the Travelspeed up to 300mm/s or is that not good for the printer because it is to fast? May I use retraction? I use TPU A95 which is quit hard for a TPU. Thanks for any answer
  23. Hallo guys, my UMO+ has problems printing TPU. When I am printing TPU after few layers the printer turn off and an very quickly, like using the switch very fast. After that the print is stopped, like it would be when you turn off and on the UMO+. I dont know why this is happening? When I print PLA there is no issue. I also tried to print the same G-Code of the TPU with PLA and I have no problems. I also printed the G-Code for a PLA part with TPU and it doesn't work. TPU settings: Nozzle 220 Bed 20 Please help! Thanks for any hel
  24. I got some flexible filament recently (https://blueprinted.co/collections/tpu-filament/products/tpu-black-filament?variant=20289791110) but I'm having endless troubles printing with it. I'm using a UM2 with the Tinkergnome firmware. I've upgraded the feeder to https://www.youmagine.com/designs/alternative-um2-feeder-version-two and also applied this mod (https://www.youmagine.com/designs/feeder-bearing-mod-for-flexible-filament) as the flexible filament was slipping off the bearing. It appears to be feeding through the extruder well. The problem is that the material is
  25. Hi, a few weeks ago i printed some parts in TPU or flex and today i saw the parts like this: As you can see on the surface some bubbles started to appear. I stored the parts in a cardboard box for a week or so and i dont know if that could cause this inconvenient. Although, is there any cleaning substance that can cause this? Thanks
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