[TPU and bubbles in the printing]

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

[CURA Infill overlap and skin overlap percentage is not present in the printing]

Hi,

I am trying to print with CURA 3.0.4 and this happened:

In one of them you will see the same piece printed with CURA version 15.04.2 and the other with 3.0.4. When i tried to print FLEX, using the 3.0.4, the skin, inner wall and infill are separated from each other as you can see. The printed piece has numerous flaws compared to the one printed with the older software. what can i do to correct this? i have tried increasing the infill and skin overlap percentage up to 20% and the result is the same.

Thank you.

[phantom object in the upper right corner (Ultimaker 3 PLA+PVA print)]

Hey guys,

I am having the same problem with this option. Although, i uncheck the "Enable prime tower" box, the path of the print keeps being the same as if i was printing with it checked. The print heads just go to the pint you will see below and stay there for 2 or 3 seconds, and then they continue printing. How can we fix that?

[Cura 2.3 Beta Awesomeness and Some Issues]

Hey guys,

I am bringing this matter back to life with the CURA 2.5 BETA. I modified the Ultimaker dual original fine to make my own and when i try to add the machine, this message pops up

Version: 2.5.0-BETA

Platform: Windows-10-10.0.14393

Qt: 5.7.1

PyQt: 5.7.1

Exception:

Traceback (most recent call last):

File "D:/2.5/build/inst/lib/python3.5/site-packages/cura\BuildVolume.py", line 435, in _onStackChanged

File "D:/2.5/build/inst/lib/python3.5/site-packages/cura\BuildVolume.py", line 499, in _updateDisallowedAreas

File "D:/2.5/build/inst/lib/python3.5/site-packages/cura\Settings\ExtruderManager.py", line 377, in getUsedExtruderStacks

KeyError: '0'

Do you know whats happening with this?

Thank you

[Nylforce Carbon Fiber- Fiber Force (Italy)]

Hi, I am going to revive this topic with an update.

Today i started to test the ePA-CF (Nylon based w/20% carbon fiber) to print a tensile streght test specimen, with the following inputs:

Nozzle temp: 250 °C

Bed temp: 80°C

Print speed: 40 mm/s

Build plate adhesion tipe: brim / 8 mm wide (i used only this, not hairspray, not nothing)

Layer height: 0.15 mm

¡Good news! it didn´t present warping at all during the printing, only when i took it off the build plate (glass) i could notice an almost inperceptible warping.

The only thing i didn´t like was that the first layer presented a little amount of material accumulation at the specien edges as you can see in the picture

i don´t know if it was because of the low print speed y chose for the outer walls (20 mm/s, CURA applies half the printing speed to the outer walls)

How can i fix this?

Thank you all

[Infill percentage and FEA simulation]

Hi,

I am now working in some devices and i need to make FEA simulations to know how they will behave, depending on the infill type and percentage. ¿Does anyone know how to obtain the .STL or .OBJ form CURA with this? ¿Can it be done?.

Thank you