Koz Ross
So, one unexpected Saturday delivery later, we have _another_ tuning thread! This time, it's HIPS filament from Gizmo Dorks.
I feel that HIPS is a criminally underrated filament for printing with, as it has all the properties of ABS (high impact resistance despite low density, slight flex, temperature resistance, easy post-processing, etc), but _un_like ABS, it also:
- Dissolves in limonene; and
- Absorbs virtually _no_ moisture.
Koz Ross
@3dprinting I don't even have words. 40VF, with _no_ issues. What is this material, seriously.
Gonna have to re-run from 10 to 60 just to see where it fails! Nothing I have ever printed with has _ever_ flowed this well before.
Plus, _damn_ that extrusion is _smooth_.
Koz Ross
@3dprinting The smell this stuff has while printing is... interesting. Even through a filter, there's a base aroma, which, while hardly _pleasant_, is nothing like the awful smell some ABSes can have. I'd say in this regard, it's definitely middle-of-the-road, but if I had to pick between leftover smell from most ABSes and this - yeah, I'm taking this!
Koz Ross
@3dprinting OK, Z-offset has been re-tuned, time for the first step: a voluflow racetrack. This time, since we're back on the CHT, it's 10 to 40, in steps of 1. Let's see how close we get!
Koz Ross
@3dprinting Fun discovery I just made - apparently, you don't even need limonene to smooth or weld HIPS: turpentine will do.
Koz Ross
@3dprinting Just to put this filament's lack of use into perspective, there's no 'generic' profile for the XPlus-3 in Orca Slicer for HIPS. This might not _sound_ like much, but there's a generic for _PVA_ in there, of all things!
For fun, Gizmo Dorks advise 230-250C on the nozzle and 110C on the bed. That's basically typical for ABSes, and the main reason I shoot higher is because the layer adhesion bump really does matter. Plus, VzBot folks do it, so it's not just me saying that.
Koz Ross
@3dprinting So, packaging. Plastic spool (boo!), but resealable bag (yay!)... except in this case it's mostly pointless.
First extrusion, smell test! It has a _very_ tarmac-y base note, but it's not nearly as pungent as most ABSes in my experience. Not nearly as low-odour as, say, Fusion or Paramount3D, but better than Polymaker for sure.
Koz Ross
@3dprinting PIOMAs here are going to be identical to how I'd normally run ABS:
- 260C on the nozzle, 110C on the bed, 55C chamber
- 45% fan
- EM of 0.925
I'll also have to test shrinkage in addition to everything else.
Koz Ross
@3dprinting I've been trying to find a good source for the stuff, and Gizmo Dorks showed up on my radar at around the same time as Tinmorry.
So now, I have to swap _back_ to my CHT nozzle, find my Z-offset _again_, but at least I don't have to dry anything! Let's see how well this HIPS filament performs.
Koz Ross
@3dprinting These two advantages mean that firstly, you can smooth (and weld) HIPS without having to use acetone (limonene is _much_ nicer to work with), but also that you don't have to worry about dry storage _at all_.
HIPS sees relatively low use in FDM printing - it's mainly used as a soluble support for ABS - but in other places, it is _very_ widely used. For example, if you bought a plastic miniature recently, it was _almost certainly_ made of HIPS.
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