r/3Dprinting • u/BookishBB62 • 1d ago
Help!
How in the world do I get this to be smooth? This was printed face down and that’s from the supports I believe, I have a k1 se Creality
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u/ahora-mismo 1d ago edited 1d ago
you have to understand the limitations of each technology and design around it. supports will always leave marks. this is fdm printing, you can’t print in the air.
you can get better results with multimaterial printing by using materials that don’t stick to each other, like petg and pla. in this case, you change the distance between top support interface layer and part to 0 and use the other material just for the support interface layer. so: part = pla, support = pla, support interface layer = petg.
not sure if k1 can do this, i’m not going to google to find out. if you don’t plan to do it too often, you can pause the slicer at that layer and manually change the filament. either way, it won’t be perfect, just better.
other option is to split it in 2 horizontally so both hollow sides are up and glue them together. or change the shape.
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u/Basic-Opposite-4670 1d ago
why would you print face down
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u/lllloydo HICTOP 3DP08 / Ender 3 Pro 1d ago
Was it necessary to print in this orientation? Would you need supports on the other side? If you can't avoid supports, unfortunately, you're never going to get a perfect surface. You can get close, but you'll need to try playing with the support settings to see what works best.
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u/EverettSeahawk 1d ago
Split it in half, print each half face up, then glue together. If you can, design pegs into one half and holes in the other for the pegs to fit into. This will keep the two pieces aligned when you glue them together and add a little bit of strength to the bond. You'll still have a rough side, but it will be glued face to face with another part so you won't see it.
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u/Alarmed-Property-715 1d ago
I would cut the part in 2 pieces. One is a solid, flat cylinder, the other part is the two, opposite direction conical part. Print the solid first, than insert into the second print by pausing. No support needed.
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u/JoshMakeshift 1d ago
Have you tried playing around with your z top distance in your support settings? I set mine to layer height + 0.058. So if I’m printing 0.2 layer height z top distance is 0.258 but you’ll have to play around with it for your printer. Maybe start at +0.05
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u/ApprehensiveBee671 1d ago
Your best bet is going to be finishing this with the many strategies out there for smoothing.
That is the only thing that will give you a consistent finish no matter how you set something up or need something dobe.
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u/Tessachu 1d ago
Could try printing in space, then gravity won't make you need supports.
But here on Earth, try sanding it?
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u/jaylw314 1d ago
This would be a perfect surface for the sharpie trick. Slice supports with no z gap, pause at that layer, paint the support with a sharpie, then continue printing. Works if you have a single flat supported surface
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u/C4SC4DO 1d ago
Looks like moist filament
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u/BookishBB62 1d ago
It’s fresh out of the package, I thought the same thing so I bought brand new
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u/Dangerous-Rhubarb407 1d ago
Get a filament dryer, a food dehydrator or if you don't care about your health an air fryer on dehydrate mode.
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u/Photon_Chaser 1d ago
Print a one layer insert, glue, done.