Big problem with hose around the filament

[fritz99 0]

Hello !

I have very big problems with the hose.

It always is driven out of the printing head.

This seems to be a general big problem with the machine.

Is there a real solution for this problem ?

Fritz

[fuchs 0]

Yes, there is a real solution. The usually used but wrong solution is to tighten / fix the hose somehow, but the reason for it to be driven out of the head is, that plastic forms a bubble or plug under it, directly in the head and that force pushes the hose out.

At what temperature do you print? Too low and the material won't melt enough leading to that effect.

The canonical solution is a different hot end, the modell V2, available since a few weeks.

Please see http://daid.eu/blag/2012/08/31/ultimaker-a-look-at-the-v2-hotend/ for a comprehensive take on that topic.

[fritz99 0]

Yes, there is a real solution. The usually used but wrong solution is to tighten / fix the hose somehow, but the reason for it to be driven out of the head is, that plastic forms a bubble or plug under it, directly in the head and that force pushes the hose out.

At what temperature do you print? Too low and the material won't melt enough leading to that effect.

The canonical solution is a different hot end, the modell V2, available since a few weeks.

Please see http://daid.eu/blag/2012/08/31/ultimaker-a-look-at-the-v2-hotend/ for a comprehensive take on that topic.

Hello !

I print with 205 degrees.

I have Hotend V2 but the hose is still coming out !!!!!!

Fritz

[fuchs 0]

I print with 205 degrees.

I have Hotend V2 but the hose is still coming out !!!!!!

Fritz

Ok, from my experience, that's a bit low. It depends on the filament of course and on the object (and if you use retraction, how fast you print etc.).

But - if possible - for some testing, you can ramp up the temperature. For troubleshooting purposes I would recommend 225 to 230 degrees. If that solves the problem, you should lower the temperature in 5 degrees steps until problem reoccurs.

Btw: some ppl. report, that their thermocouple seems to read low all the times, meaning that the print head is colder than that what the machine thinks it is. In that case, they also increase the temperature.

Iterate, Iterate! ;-)