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Hello everyone,

i’ve been trying to print with HIPS filament, not as structural support material,but as the base material for a part. The problem is, that the adhesion between the layers isn’t enough to hold them together during the print… and sometimes when the filament comes out of the nozzle, it makes little noises (pops) and then breaks when it reaches the layer. I’ve been trying with different temperatures for extruder and bed, the big problem is the adhesion between te layers, the ‘pop’ sounds is pretty much fixed now.

I’ve been working with extruder temperatures from 230-260°C, and for the bed between 110-140°C.

(layer thickness 0,1mm)

greetz

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@Ara @makersaffair @Mathieu_Venot any advice on 3d printing with HIPS?

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Hello, I haven’t try yet with this filament, is still unpacked sorry.

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@kedam @gabriela3d Hmm…have you tried keeping the chamber warm? Sometimes if the chamber is not warm enough, the model will warp and cause the in between layers to crack apart from the base layers. If your printer comes with an enclosure, it will be good to put them on. Otherwise, you can also make one with acrylic sheets. :slight_smile:

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Hi, we have successfully printed with HIPS, in fact we have printed (and still do) with rHIPS (recycled PS). We actually create and sell 100% recycled HIPS filament (1.75mm ±0.05) at fila-cycle.com.

If you need help with it please do get in touch with me.

Note: Always print in a well ventilated room, no matter if you are printing with HIPS, ABS, PLA or any types of plastic.

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would an enclosed chamber make that of a big difference? I don’t have one, but it is very easy to make, also I forgot to mention that I use a ventilator… Should I turn this off, so it doen’t cool off that quickly? although HIPS is very simular to ABS, they recommend using a ventilator with it (ABS), so i did the same with the HIPS filament.

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I was the one who published the initial info on using HIPS as a support material (» Soluble Support Material 3D Printing Providence) and I’ve printed a lot with HIPS as a support and also as primary support material. I haven’t had any problems with printing it using the same profile I would for ABS. My concern is typically when you hear the popping sound like you are, it means there is moisture in your filament that is being flash boiled as it comes out of your extruder (the popping is steam being released). This moisture could be leading to your print problems. Try placing a chunk of your filament in a dehydrator for 24 hours and see if you still have the same results.

Thanks,
Matt

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Matt,

thanks for the advice, and do you use any adhesive tape with it? I’ve been reading bed temperatures around 90-100°C for HIPS, but also rond 140 degrees… what bed temperature do you use?

kind regards

Kevin

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I think using a ventilator when printing a small object would be fine because the warping tendency is small. However, when printing larger objects, it’s better to switch the ventilator off and keep the chamber closed. It made a difference for me the last time, no harm trying. Maybe you can start with switching off the ventilator first and it may solve the cracking problem. I use 110 degree Celsius for the platform and 235 degree Celsius for the nozzle tip.

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Thanks for the advice! I will try it out and see if it makes any difference.

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MattStultz, I’m amazed at how well HIPS can do 90° overhangs when the blower is on full speed. But the layer adhesion sucks with the fan at full. If I turn it off, the layer adhesion becomes super strong, but the print gets saggy. It also appears to be over extruded.

What are your settings specifically for HIPS? Are you turning the flow rate down? What percentage are you running the blower at, and are you getting good layer adhesion?

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I have an stl file I would like you to 3DPrint in HIPS. The 3DHUBS website impossible for me to use. Please contact me: Tom.Warm@att.net

Thanx,

Tom

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on hips you are supposed to use a base plate tempratur og 80celsius . Hope it helps.