Questions tagged [filament]

For questions related to different filaments used as the print material.

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18
votes
1answer
8k views

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 ...
4
votes
2answers
1k views

3D printer filament will not load after running the printer out of filament

We wanted to test the post process properties of PVA but did not want to print anything. We unloaded the ABS that was in the printer and then started loading some PVA. After the PVA was loaded we ...
8
votes
1answer
4k views

POM filament not sticking to the build plate?

In the creation of the process of printing my own bearings to reduce noise, minimize play/tolerances and size the bearings to the actual size of the application, I obtained a spool of Polyoxymethylene ...
7
votes
3answers
4k views

Avoiding stringing with flexible filament

I have some flexible PLA filament (https://www.amazon.com/dp/B00VKSSA4E/, presumably a mix of PLA with some platicizer) that's supposed to be easy to print with settings similar to regular PLA. I've ...
3
votes
3answers
1k views

How to get Sunlu PLA to adhere to the printing bed?

I have a Creality Ender 3 that printed a spool of Sunlu PLA with no issues, so I bought a second to replace it, just in a different color. The problem is I can’t get it to stick. The bed is level, I’...
9
votes
2answers
23k views

Any fix for PLA prints getting more brittle over time?

I've been printing small quantities from a PLA filament spool on a Craftbot printer for about two months now. Recently the printed objects have been coming out very brittle. Some structures that ...
3
votes
5answers
8k views

Filament lifts from the hot bed while printing

I have a Tevo Tarantula 3D printer. I'm trying to print a calibration cube. The slicer is Cura and is set for a 1.75 mm filament extruded by a nozzle of 0.4 mm, with a heat bed ...
23
votes
5answers
5k views

Does filament have to be stored in an airtight environment?

For standard ABS and PLA filament, most distributors recommend storing the filament in an airtight bag. Does not doing this actually make print quality worse? I have left mine in the open for a year ...
55
votes
9answers
91k views

How do I give 3D-printed parts in PLA a shiny smooth finish?

The surfaces of my printed parts using PLA plastic look rough and uneven. Would changing filament to a better one make any difference? If not, what kind of methods can I use to achieve a smoother ...
25
votes
6answers
63k views

What is PLA+? How is it different from PLA?

Question What is PLA+? How is it different than PLA? I'm looking for science, composition, formula, safety concerns (or lack thereof), etc. Background I picked up a roll of PLA+ at Microcenter (...
39
votes
7answers
51k views

When to use 1.75 mm vs 3 mm filament?

Why do we have two standard filament sizes, 1.75 mm and 3 mm? Does it really make a difference when printing? Or is the 1.75 mm just for smaller printers? In what situations should I ...
15
votes
6answers
10k views

What is stopping us from mixing 3D filament colors in an Extruder?

This came up in one of my groups today. That we could not color bend, or mix 3d printing filaments. I have researched but I am not finding anything talking about Plastic mixing in an extruder. Why is ...
6
votes
2answers
1k views

What are the appropriate ranges of gear ratios for 1.75 mm and 3 mm filament extruders?

Most 3 mm (mostly are actually 2.85 mm) filament extruders have some kind of gear reduction. Many 1.75 mm extruders are direct-drive / ungeared but some do use gears. What kind of ...
19
votes
5answers
10k views

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 ...
7
votes
1answer
234 views

Are there any methods of limiting exposure of hazardous fumes and odors emitted by heating the plastics?

When using thermoplastic-filament, this can be potentially hazardous, since constant printing can emit hazardous fumes and odors that may be emitted by heating the plastics. I understand it normally ...
4
votes
3answers
3k views

Increasing hotend temperature to compensate for increased filament throughput

It seems that when filament throughput is increased (by increasing movement speed or extrusion width/height), printing temperature also has to be increased to compensate, because the filament will ...
5
votes
3answers
1k views

Can the filament tube be outside of the nozzle?

I bought a few new nozzles expecting them to come with that little tube that comes out of the nozzle. They didn't come with them after all, so I tried to reuse the tube I originally had in the printer....
1
vote
2answers
8k views

E3D V6 nozzle vs MK8 nozzle, first layer adhesion

Does anyone notice that when they upgrade from an MK8Makerbot(?) to a E3D V6 hotend that when using the same settings and bed-leveling/z-distance-setting procedures, that the filament is much more ...
38
votes
5answers
4k views

How is PLA different from ABS material?

What are the main differences when using ABS over PLA and vice versa?
9
votes
3answers
10k views

PETG Collecting on the Extruder

I have recently bought a spool of eSun PETG. So far I really like the filament. My only complaint is, I get lumps of charred filament deposited on my object. The slicer I used is Craft Ware and I have ...
10
votes
3answers
8k views

Why does my PLA filament form a spiral shape and clog my extruder?

I'm using brand new PLA filament and am getting frequent clogs in my extruder. I've had this problem with 2 different filaments from 2 different vendors. It will be print just fine, then clog up. ...
6
votes
2answers
4k views

What is the thermal conductivity of various 3D printing filaments?

Thermal conductivity is how well a plastic conducts heat. Most plastics don't conduct heat very well at all, which is what allows them to be 3D printed. That being said, there are a lot of potential ...
20
votes
4answers
14k views

What to do with failed/unwanted 3D prints?

I am planning on getting a 3D printer soon and I was just wondering, what do you do with 3D prints that either failed or were prototypes that you no longer want? I tried looking online but the closest ...
5
votes
3answers
664 views

How to unclog a clogged extruder?

I have a Wanhao Duplicator i3 v2 (A.K.A. Maker Select, Cocoon Create). My extruder got clogged: I noticed that it wasn't extruding, so I stopped my print, removed the fan, heatsink and the extruder ...
19
votes
4answers
7k views

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 ...
11
votes
5answers
603 views

Multi-color printing with desktop 3D printer?

My MakerBot printer supports only two filaments at the same time. What are techniques to print objects with more than two colors for one object?
10
votes
4answers
3k views

Identifying the plastic type of an unknown spool of filament or recyclable waste

Is there any way to test what kind your filament is? There are no labels on the spools and I don't know whether they are ABS or PLA. I got the plastic with the printer, which is no longer sold (...
6
votes
2answers
14k views

What are the costs per meter of filament for PLA, ABS and PET?

My Craftbot Plus Craftware slicer estimates cost per job based on filament prices I add as parameters. What costs per meter would you use? I created spreadsheets to calculate this for 1.75mm ...
6
votes
3answers
935 views

3D printing filament resistant to steam

I need to replace the lid of my water kettle and am searching for a filament, that is suitable for this purpose. The requirements are: Stable at 100°C (212°F) Resistant to steam/moisture Food-safe ...
1
vote
2answers
299 views

Filament sticks to nozzle

Normally, I'm all fine with my printer and filament. But today I changed the filament for another brand and no matter what, it sticks to the nozzle so nothing comes to the bed and soon my nozzle is ...
16
votes
2answers
4k views

Can 1.75 mm filament be used in a printer that takes 3 mm filament?

As an extension from this question, is there any reason that you would not be able to use 1.75 mm filament in a printer that takes 3mm filament? I know you would have to change the filament size ...
11
votes
3answers
4k views

How can I stop my print bed tape from sticking to the filament?

I made a test print for a small gear (~ 1.5 inches in diameter) a few months ago, with a hole through the center. On the first try, the filament (ABS) fused to the print bed, meaning that I had to ...
10
votes
7answers
9k views

Which filaments actually do need to be stored in a drybox?

As I started to learn about 3D printing, the gist I learned was "it's better to store the filaments in a drybox." As I rechecked these notes, they were to a good degree from an era when PLA ...
10
votes
3answers
4k views

Conversion of 3 mm ABS filament to 1.75 mm

I have a few kg of 3 mm filament when I only have use for 1.75 mm. How can I make 1.75 mm from 3 mm filament?
9
votes
2answers
3k views

Increased issues with filament grinding

I have a FlashForge CreatorX (MakerBot clone) that's been working fine for about 15 months. Int he past month, I started noticing "thin" layers in some of my ABS prints. I finally tracked the issue ...
8
votes
3answers
601 views

Filament Guides Drag

Backstory I've had issues in the past with my drive gear "eating" my filament. It seemed that the filament quit extruding for one reason or another and the drive gear would slowly eat away at the ...
8
votes
5answers
11k views

How to connect filament end-to-end?

Is it possible to connect two pieces of 1.75 mm filament end to end, with no change in width? I am asking the question because I am interested in creating a multi-filament feeder to a single extruder, ...
8
votes
1answer
987 views

Is there any reason *not* to use a steel nozzle for printing all materials?

I know that for printing some materials like the carbon-fiber filled PLA it's recommenced to use a steel nozzle since it'll wear-out a standard brass nozzle quickly. Is there any reason to prefer ...
7
votes
1answer
2k views

Issues with Proto-pasta filament extruding on prusa mk3

Has anyone run into problems printing with Proto-pasta's HTPLA on a Prusa MK3 (or any printer really)? I picked up some samples from PP, specifically their glitter filament and a couple of the premium ...
6
votes
1answer
147 views

Why is my filament pressed together at the nozzle

When I wanted to take out the filament from the extruder, it didn't wanna come out, it was stuck (even when I heated up the nozzle). So I unscrewed the nozzle and it looks like the filament is all ...
6
votes
1answer
1k views

Calculating extruder motor steps for 1 mm

I would like to calculate the amount of steps to turn the motor to have 1 mm of the filament. I did the following (using approximate values): The gear on the outside of the teeth as a diameter of ...
6
votes
2answers
501 views

What are the safest temperatures to heat different filaments to?

I recently backed a 3D printer on Kickstarter, and I would like to 3D print parts for high-temperature applications. So I have two questions; What's the highest temperature polycarbonate can be ...
4
votes
2answers
1k views

Needing a simple fix for loading TPU

My question is... Is there a SIMPLE/easy way to load TPU without tearing my printer apart to insert a hose that probably wont work anyways. It keeps curling up by the cog. I have read a few topics in ...
3
votes
4answers
833 views

FDM: Clear=transparent part

I intend and would like to print a transparent hemisphere. I have a Taulman T-Glase clear 1.75 mm filament and I have XTC-3D. You can read this interesting page, Hacking t-glase to look more like ...
2
votes
1answer
217 views

Filament storage? [duplicate]

What's the best way (outside of silica beads) to store filament sensitive to moisture? I feel like filament buried under a couple pounds of rice will stay pretty dry. I understand that frequently ...
0
votes
1answer
65 views

Has anyone had success printing PMMA filament using Lulzbot products?

The title of this post more or less says it all. I am having a heck of a time getting PMMA (polymethyl methacrylate) to print on my Lulzbot Mini 2 (which uses all of the standard/default attachments). ...
0
votes
2answers
136 views

How to find pure PLA filament?

Prompted by discussion in comments of a recent question whether PLA is suitable for parts that need to be in contact with acetone, I did some casual experiments and found that my clear/"natural&...