Hey guys. Running into a thing with my Fuse 1+ 30w on the newest beta print profile for Nylon 11.
I don’t think it’s necessarilly specific to nylon11, but basically the armour coating on my parts is TOO sintered. The parts where I can remove it the finish is perfect, but theres a number of areas where it has caked on and blasting just isn’t sufficient to remove it. The parts are also way off tolerance, like mm’s worth over the size of the whole object.
I’m aware these are beta profiles and I can just switch back to the original verified profile if needs be buuuuuuut… I like the finish better on the new speed and combined surface quality beta.
All that said I compared settings on the v1 vs v2 profiles and the newer one seems to have the laser power set to well over 12000mw on armor regions whereas v1 has it set to 2100mw.
I’m toying witrh the idea of simply reducing the laser power for armour till I get a good balance between surface finish and easy cleanup/appropriate dimensional accuracy. Anyone see any big issues with trying this or is there another way to achieve what I’m after?
If you have any leeway on your bed temperature, that might be a less invasive way to account for over sintering but that is a big jump in laser power. Did the other power settings jump that much too?
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As far as I can tell, the laser powers for the main sections didn’t change a bit.
Sounds like we know why it’s still a beta profile lol.
Absolutely. Just did a full bed print using the newer profile with modified laser power on the armor… It went, in a word, Badly. lol
Every part is warped through the entire piece… although I’m not sure warped is the correct term. it’s almost like a gradual reduction of X/Y value from low to high z values.
Think I’m just going to give up on this profile for now and go back to the old one… It’s a shame really, the newer profile has better surface finish on longer z-axis parts. But the parts are all completely useless lol.
Hey @CJay9209
Thank you for testing the new Beta settings and posting about your experience here on the forum.
I just wanted to jump in and click the “yes to all” checkboxes on the messages you and @CARobertM sent.
The new beta was specifically made for better surface finish and for a bit of speed improvements (We’re glad you like the new surfaces so much), but as Robert correctly put it: “Sounds like we know why it’s still a beta profile lol.”
I have taken your feedback and forwarded it to to our team which is working on the new parameters and will send a follow up in case they want some data from your prints.
Kind regards
Jakob
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That’s an interesting effect. What did you lower the power setting to?
Its awesome to see this kind of engagement from FL. Any insight into the physics to why the adjustment caused the described effect?
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Thanks for the response Jakob. I’d be happy to provide any and all data you need on the issues. I actually wonder if the warping/morphing of the parts was less to do with the armor setting and more to do with Thermal load of the parts I’m doing. E.g. going from a dense thick solid part to the upper sections which consist of thinner walls more or less. I’ll grab some pics in a bit here and post them up.
@Robert - I dropped the laser power for armor to 2100mW and the build up of over-sintered powder was better for the most part but there are still some small areas where it stuck so hard i had to use a razorblade to remove it. I’m starting to think it’s a more general issue with the heat profiles/bed temps that’s just exacerbated by the higher laser power for the armor shell.
Edit…
Actually now that I think about it, when I tried to remove the parts, they were at least 2mm apart but the powder between them held them together enough I had to “break them apart” but it did separate from the surface of the parts without toooo much effort… defo starting to look sideways at bed temps lol.
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I’m with you on bed temp adjustment.
Are you using a blast for post process?
yup - although it’s the polishing media so I’m not sure it’s as abrasive as the regular blasting media.
It’s worth noting that if I print on the regular profile it’s all totally fine but I get a little rough on vertical walls, which given that I’m printing at 50% refresh in air atmo with PA11 isn’t bad at all. With that setup it’s been zero bother to clean off parts. No issues at all really, so it’s defo a profile issue.
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