Help tuning print settings.

Spectrum 275 ASA. 260 nozzle and 60 bed. Getting a lot of pinhole. Layers don't look very uniforme. Some weirdness on the bow.
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13 Replies
rare-sapphire
rare-sapphire17mo ago
I would recheck pressure advance value
NMGMarques
NMGMarques17mo ago
I ran it again. For some reason, it was different this time. Decreased and seems to have helped a bit. The bow is now ok. Gaps on the sides are gone, but the fill seems to have gotten worse.
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stormy-gold
stormy-gold17mo ago
It look like you moved seams from bow to starboard, it's all the same, just at different place.
NMGMarques
NMGMarques17mo ago
Seams are the exact same setting. But in any case the PA helped a lot. I do have Z Banding. Or wobble, however you’d like to call it. And I can’t quite figure out the gap issue. The problem in my mind might have something to do with extrusion multipliers. For example in the next photos, you can see the lines are going down well in the middle, but seem to over extrude at the ends. And if the lines are short, it all goes to crap.
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NMGMarques
NMGMarques17mo ago
The result is crappy looking layers that don’t quite recover. And if I further change the pressure advance from here, the edges don’t get any better.
rare-sapphire
rare-sapphire17mo ago
I would assume your extruder is broken somehow, it is clearly inconsistent extruding. And here's is nothing about pressure advance I would open it and check gears and bearings. Or buy a better one, this one look like a bondtech clone, those are always crap Also, disable pressure advance at all and make sure you layers are consistent in height. After that PA helps you with better looking corners
NMGMarques
NMGMarques17mo ago
Thanks.
dependent-tan
dependent-tan17mo ago
Is your hotend fan pulling air from the hotend? It should push air into it. That might be a issue
NMGMarques
NMGMarques17mo ago
The hotend fans a are on the back. Dual fans. They pull cool air into the hotend nozzle.
blacksmithforlife
no, they are talking about the fan that cools the head break. You can see the sticker on the front under the fan cover. It should be that the sticker is pointed at the heat break since that is the direction the air blows
NMGMarques
NMGMarques17mo ago
Oh crap! You’re right. I must’ve turned it around when I was reassembling after I had to change the heater cartridge.
rare-sapphire
rare-sapphire17mo ago
Jusus that was unexpected
NMGMarques
NMGMarques17mo ago
So... Flipped ir around but still pretty much the same thing.
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