Most Popular
1500 questions
22
votes
3 answers
What causes ripples on part of first layer?
I'm having issues with ripples on the first layer of big flat prints. The initial corner of a big flat print is fine, but then ripples begin to form as shown in the screenshot.
I'm just a newbie, so I was thinking they might have something to do…

Kevin
- 573
- 1
- 4
- 12
22
votes
5 answers
How to identify nozzle wear?
E3D-Online and Make Magazine have written about the potential damage printing carbon fiber and glow-in-the-dark filaments can do to your printer's nozzle.
What I can't seem to find is what clues or warning signs to be on the lookout for if your…

TheNewHobbyist
- 1,348
- 1
- 11
- 12
21
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
- 343
- 1
- 3
- 8
21
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
- 1,403
- 1
- 13
- 28
21
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
- 1,990
- 4
- 18
- 31
21
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
- 862
- 8
- 21
21
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
- 986
- 1
- 10
- 21
21
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
- 991
- 2
- 12
- 22
21
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
- 2,765
- 2
- 23
- 40
21
votes
6 answers
Why keep the bed heated after initial layer(s) with PLA (or PETG)?
I'm printing on an Ender 5 with the default flex/magnetic build surface.
I read that PLA and PETG may sometimes be printed without any bed heating at all and also that bed heating is the main contributor to the power consumption of a printer.
As I…

Oliver Giesen
- 375
- 1
- 4
- 8
20
votes
1 answer
How to set Z-probe boundary limits in firmware when using automatic bed leveling?
In setting up a probe for automatic bed leveling, the limits of the probing area must be entered in the firmware of a 3D printer.
When using a sensor, how do you define the bed limits for the sensor in Marlin firmware?
E.g. the Marlin (1.1.x)…

0scar
- 35,554
- 12
- 65
- 151
20
votes
5 answers
Can you put PLA parts in your car (in the sun)?
I'm in the process of building my own head unit / stereo prototype for a car, which will have a 3D-printed enclosure.
My concern is that cars can get quite hot in the sun, and even more so if you live in hot climates. Some estimations put the…
user10974
20
votes
2 answers
Mushy small top layers?
I just added a fan to my printer because very small layers seem to come out very badly. For example, the 5mm PLA cube that's the top level of the test shape shown below. Watching closely, I can see that the newly-extruded fiber is pushing the…

TextGeek
- 3,207
- 2
- 15
- 32
20
votes
2 answers
How may I identify the firmware in use on my 3D printer?
I have a generic printer with no support documentation.
How do I determine what firmware is in use so that I can research how to make the print run?

Gord
- 219
- 1
- 2
- 3
20
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
- 2,511
- 8
- 20
- 32