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Vertex 3D Printer Vertex - Issues while printing
1

Hello,

I was printing an object with an ooze shield today, but after a few layers this shield stopped working. I was using a shield in favour of a wipe and prime tower because they always seem to fall over and leave a stringy mess on the object.

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I am using white PLA with white HIP support at temperatures of 190°C and 225°C respectively, with a layer height of 0.2mm.

The nozzle did not require unblocking for the next thing I printed so I don’t really understand why this is happening.

Thank you in advance for any help.

2

To print HIPS you need to use the ABS profile.

3

I am using a modified ABS profile with a lower temperature because the HIP keeps oxidising - causing black marks on my models - and because the heater struggles to get to that temperature. It shouldn’t matter because the [color=#0000FF]glass transition point of poly(styrene) is around 107°C.[/color] Nevertheless the same issue occurs when using the default temperature.

Is there anything else I could try?

Thanks.

4

Did you check the length of the PTFE tube inside?

Does the same thing happen when you switch the materials around (PLA in HIPS extruder and other way around.)

5

[quote=“VEL327”]Did you check the length of the PTFE tube inside?

Does the same thing happen when you switch the materials around (PLA in HIPS extruder and other way around.)[/quote]

Thank you for the response.

I was very careful to make sure the PTFE tube inside the hot end was the right length, but out of interest how might that cause the issue?
I do not currently have access to my printer but when I do I will update this post with the result of swapping the materials over.