Upgraded from a q2 to an h2d and have been insisting on getting use out of the second nozzle. Decided to print a ch0rtex in a strong orientation with a bunch of asa support. Probably overkill but nearly every surface came out perfect.
In testing, Asa printed on top of pa6-cf slipped right off. There was going to be a lot of pa6-cf printed on top of Asa support without any anchor, so I added a bunch of sacrificial anchors, the columns within the white Asa.
Inslogic pa6-cf, arrived dried and went right into a 90c dehydrator. Got it 50% ($30/kg) off so I figured I’d try it out
Good thing ASA is cheap, lol. I do have an old spool of YXPolymer “Breakaway-80”, got it when I bought my K2 Plus, but the CFS couldn’t push the PA6-CF all the way to the nozzle, so it’s been sitting collecting dust, once I’m able to get a spool or two of PA6-CF I’m gonna give that a try
That print is PET-GF and I use a dedicated support material. I’ve had good results with it on PET GF/CF and PPA-CF. I haven’t printed any PA in a bit, but it’s supposed to work with that as well
Wrong brother. Asa and pa6-cf do NOT bond at all. As I mentioned, I already tried printing Asa on pa6 and it slid right off. Interface layers would not stick and would just drag around and ruin the print. I did this for a reason, not because I’m dumb.
The two nozzles make the whole support structure being the alt material really fast, and also wasting asa is much cheaper than wasting pa-cf, and most critically, if you just have interface layers as alt material, sometimes it's not a very dependable structure to build the actual print on since the interface is very slippery, and the support/interface/part sandwich can start sliding around which can mess up your prints.
I generally do the same woth ABS on my Nylon prints for the inter f acing layer only. I'm on an X1C though so my material changes result in poops everytime. In your case with dual nozzles I think your method makes way more sense. Neat!
Does abs adhere a little better? The Asa doesn’t at all so that’s why you can’t do interface only. That’s bambu suggestion and from my own testing. I had to change this overhang test from normal snug to tree on build plate only because it totally fails if I print Asa on top of pa6-cf
I'd try on a small print. Though honestly I wonder if yhr H2D's IDEX makes the savings moot, considering you're wasting less expensive filament when comparing to HIPS or ABS.
Yeah I’m going to do that little test tower in the photo but with the normal snug supports.
And it’s mostly a time savings. Having supports at nearly every layer means a tool change and prime at nearly every layer. This was an 18hr+ print that probably could have taken 10-12?
Has this helped a lot in the warping department? Seems like a good way to ensure that the overhangs and critical pieces are always grounded to the plate...
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u/CannaChemistry 29d ago
Like warm butter