Looking at the H2D for printing Nylon 12 with dissolvable supports. Has anyone printed PA12 and/or PA12-GF/CF with the H2D? How are the results? Thanks!
I will have my H2D in a few days and will post results, I print a lot of PA12/PAHT.
A side note, try ASA supports with nylon, they works great as they dont stick to each other. The soluble support (PVA) I tried were not pleasant to deal with and did not dissolve fully.
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@maximit random material question: curious how you landed on using a lot of PA/PAHT over alternatives like PET or PPA? i often have trouble deciding across the array of engineering filaments!
Mostly its my customers specifying “carbon fiber reinforced nylon” so PET is out. PPA is somewhat price prohibitive, so unless i need the better strength or higher temp resistance I wont be using it. Also my main draw to Bambu PAHT, it can be used in AMS, so I can use breakaway ASA supports. Also PAHT is mostly PA12 so it will be stronger than plain PA after moisture saturation, as it will be exposed to moist environment air after all.
I do have some PPA and PET laying around when a project requires it.
Also when my H2D arrives I will be doing more PPA prints as with the dual nozzles I will be able to use ASA supports with it. H2D was pretty much custom made for my workflow.
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It’s only been exactly a few days but thought I would check in as I am eagerly anticipating your thoughts 
It shipped today but unfortunately they shipped it on a 4500km journey… by ground! So its going to be trucked to Toronto from BC all the way across Canada! Probably will be unloaded-loaded 5 times minimum at FedEx hubs. I give it a 50/50 chance of arriving safely. 
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North America has a good freight rail network, so this surprises me.
Printed with PPS-CF, PPA-CF, and PC-ABS last night on the H2D. Each one came out perfect with zero warp and incredible layer adhesion.
All filaments that struggled on the X1C with layer adhesion(300c hot end limited this) and mild warping.
This printer is a fantastic upgrade for these types of materials.
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Good to hear.
Were these Bambu filaments, and with their standard profiles?
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The PPS (Polymaker) and PPA (Bambu) I used the Bambu profile and the PC-ABS (3DXTech) I made a modified version of the PC profile. All turned out perfect.
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Cool, thanks.
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Did you bump the temp on PPA? Its still at 290c on Bambu PPA-CF profile. I find this strange even the wiki says “PPA materials need to be printed at higher temperatures around 300~320°C.” It could benefit from higher temp, maybe 310 for best layer adhesion.
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Any chance you can share photos of how the prints turned out?
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Have you had a chance to print any PA12 and time to form an opinion?
Ive been printing ASA, ABS-GF and PC PolyMax, so far everything is perfect. I will get to Nylon soon, just have not had a project that requires it yet.
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Im doing a 15 hour PAHT/PA12 print right now. A few observations so far: the adhesion was not good at the profiles stock 90c, I bumped it to 120c and restarted and now its perfect with no adhesive, the new PEI plate with the coating is great. Im printing with ASA supports from the second nozzle and there is quite a bit of ooze from the nylon nozzle before the ooze guard snaps on. I have a few tiny loose strands on the plate but the prime tower is doing its job so the print itself is clean. Will post a photo once im done printing.
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15 hour Nylon print with no glue, that’s confident. Personally, I’ll take the insurance every time.
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I also have no patience for glue =P
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I usually use Nano Polymer with any engineering materials, but the adhesion on the new textured PEI has been so good (due to the coating) that I skipped it. Ive printed ABS-GF, ASA, PC PolyMax with no problems and amazing adhesion. I have a plain uncoated 3rd party PEI sheet on the way to use with nano polymer as I dont want to rip up the coating on the OEM sheet, nano polymer is like superglue. Also its a 15 hour print but its two pretty small complex items with 0.1/0.1 fuzzy skin.
Print came out super clean looking.
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That looks great! How do you remove the raft from your Nylon prints?