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1500 questions
20
votes
4 answers
Would 3d-printed objects outgas in vacuum?
I want to fabricate a sample holder and shadow masks to use in vacuum chambers. The type of printing material is not important to me PLA/ABS/PC-ABS/nylon).
I'm worried that 3d printed objects (FDM) would degas under high vacuum. Is that an actual…

Sparkler
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20
votes
9 answers
What kinds of gaps/tolerances should I use when designing pieces that fit together?
Let's say I'm modeling a simple box with a lid. Just as an example, we'll say the outer edge along the top of the box is 50 mm x 50 mm. With 3D modeling software, it's easy to build a lid for this box to surround the top with an inner edge size of…

Joel Coehoorn
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20
votes
2 answers
What are the reasons for my 3D prints having large numbers of strings between parts of a layer?
I am printing a print using PLA on a Prusa i3 printer and an MK8 extruder, at 210 degrees celsius, 60 mm/sec, sliced with slic3r. The print consists of a base, with 4 tower-like projections that then join with a near-vertical overhang slope that…

nanofarad
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20
votes
2 answers
Chocolate printing
I have seen lots of printers that print chocolate using a syringe with molten chocolate. But, even cooler, would it be possible to print chocolate using some kind of feed system for continuous chocolate printing, so large objects and for a prolonged…

Dimitri Modderman
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20
votes
3 answers
Are there any ways to make a 3D print transparent?
I am aware of several "clear" filaments for a ABS or PLA printer. They, however, have a cloudy or frosted glass appearance. I do not believe this is possible to eliminate but I believe it can be reduced.
Are there effective ways to make a print…

kaine
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19
votes
1 answer
How does one use a heat tower?
I've been asking around on how to choose the right temperature for a given filament. I noticed that with two different brands of pla I have to print at different temperatures, and the manufacturer specifies a broad range of print temperatures.
I…

linuxdan
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19
votes
4 answers
When should I use a raft, when should I use a brim?
Taken from the answer provided by @EricJohnson,
When should I use a raft, and when should I use a brim? What advantages does each have over the other?
Raft
Brim

Matt Clark
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19
votes
4 answers
Does wood filament damage the printer nozzle?
I recently found out carbon fiber and glow in the dark PLA can damage the printer nozzle, now I'm suspicious of all the "exotic" filaments.
So, does wood filament cause damage to the nozzle? (under normal use, or at least what someone who only used…

Nir
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19
votes
3 answers
Filament extrudes at an angle
On one of the nozzles on my printer, the filament comes out at a 45 degree angle. It seems that this causes problems with adhesion to the bed and overall quality.
What caused this problem?
How do I fix it?
How do I prevent it from
happening in…

Eric Johnson
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19
votes
9 answers
What is the best 3D modeling software for a beginner on a 3D printed mini barrel project?
My goal is to 3D print a 5 liter miniature barrel with a side stand, similar to this wooden one on Amazon. I want it to have a removable top so that a boxed wine bladder may be put inside, and there should be a hole on the top as well so that the…

Maxim Berezin
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19
votes
6 answers
Can I mix ABS and PLA when recycling filament?
I'm thinking of recycling some filament from a couple of recently failed prints. I can reuse them in the future for basic prototypes, so I'm not concerned with whatever weird mixture of colors come out (they are of a few different colors).
The thing…

HDE 226868
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19
votes
2 answers
What are the parts that make up a hotend, and what do they do?
My first and only 3D printer is a Printrbot Simple Metal, which has a hotend that doesn't expose any of its internal parts. Easy for beginners, I suppose: "The hotend is that tube that heats up the plastic and deposits it on the print bed."
But…

mhelvens
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19
votes
5 answers
Can aged PLA be refurbished?
Inspired by another question and due to the fact that some of my filament will face the same problem when I will use them again, I wanted to know if there are proven recipies to get rid of water that has ben incorporated to PLA filament from…

kamuro
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19
votes
7 answers
How to print metal-like parts?
I would like to print parts (e.g. jewellery) for use which I don't want to look or feel like a plastic, but metal-like, so briefly people won't see much difference.
Are there any specific type of home-printers that can achieve that? Or it's rather…

kenorb
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18
votes
6 answers
How to remove white marks from PLA
When you cut or break a PLA model (for example to remove support) it often leaves an ugly while mark where the removed piece was connected.
Sanding also tend to leave dull white scratches on the sanded surface.
What can I do to restore the white…

Nir
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