HIP Oxidising

Vertex 3D Printer Vertex - Issues while printing
1

Hello,

When printing with HIP I find that it is sometimes heated for too long and turns black, likely because it is reacting with oxygen in the air due to the temperature it’s at. This results in black marks on my printed objects, as well as gunk on the printer head.

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I was told to use the ABS profile for HIP, but since [color=#0000FF]the glass transition point of poly(styrene) is around 107°C[/color], I thought that lowering it to 225°C to try and reduce this effect wouldn’t cause any issues.

I understand HIP is not commonly used, but I would very much appreciate any help anyone can give.

Thanks!

2

Does it get extruded like this? because this seems very local when its burnt when it gets extruded.

3

I’m not 100% sure but I think it must do as it doesn’t happen when using just HIP, so perhaps it occurs at the first part of each layer that is printed in HIP (since the HIP would have a been stagnant a little while in the nozzle).

4

Alright, I believe it is extruded like this. Do you have some HIP filament you can test at Vellemen to see whether this happens for you?

5

Does anyone have any experience with HIP?