Questions tagged [pla]

Polylactic Acid, also known as PLA, is a common biodegradable thermoplastic polymer.

Filter by
Sorted by
Tagged with
55
votes
9answers
90k 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 ...
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?
33
votes
2answers
2k views

How to recycle filament material from printed parts?

Is it possible to re-use ABS or PLA filament material from printed parts? If so, what is the techniques to reform it?
25
votes
6answers
62k 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 (...
23
votes
5answers
4k 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 ...
21
votes
4answers
56k views

What glues for PLA?

I will be creating a small tube styled piece to use as a junction between two pieces of plastic. The idea is to reattach the two pieces and provide strength so they don't break apart again. I plan on ...
20
votes
4answers
13k 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 ...
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 ...
19
votes
2answers
3k views

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 ...
19
votes
6answers
3k views

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 ...
17
votes
3answers
39k views

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 ...
17
votes
6answers
10k views

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 ...
15
votes
3answers
20k views

Uses for PLA scraps

I recently got a 3D printer and have been experimenting with it a lot, resulting in a lot of failed prints (as well as successes, fortunately). I'd like to, if possible, find a way to reuse the ...
14
votes
5answers
16k views

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 ...
14
votes
5answers
12k views

Using dollar-store picture glass for print bed on top of original heated aluminum bed?

I'm having a really hard time printing on my aluminum heated bed... Cleaning it just results in it being scratched (trying to scrape dried hairspray/glue/etc off) and I don't think it is particularly ...
13
votes
3answers
34k views

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 ...
12
votes
4answers
12k views

Is PLA filament conductive?

I am planing on printing something that will make contact with PCB boards. The print will be most likely to be in PLA. I don't want to fry the PCB board so I want to know if 3D printed PLA objects are ...
12
votes
1answer
8k views

Does the layer thickness have any effect of the strength of the 3D printed object?

Is a 100 micron layer thickness object stronger than 300 micron layer thickness 3D printed object? Are there any rules to follow? Filament type - PLA
12
votes
3answers
782 views

Troubleshooting poor adhesion at the edge of the bed

I've been printing for a week now on my new printer and have been getting great results, including great adhesion. However, most of my prints have had a fairly small footprint. Now, I'm stepping up ...
11
votes
5answers
50k views

Serious safety concerns with living in same room as PLA 3D Printer?

I have an Ender 3 which I primarily use for printing with PLA. I haven't branched out to other materials yet. :) I've done some research into PLA fumes and airborne particulates which seemed to ...
11
votes
2answers
15k views

PLA use outdoors?

I have been using PLA filament for two years now and have had good prints. ABS on the other hand has not been so good, so my choice of filament is PLA. I am getting ready to do a sign for the ...
11
votes
5answers
7k views

Prints are now sticking too well to the bed. What to do?

I'm a beginner. I've a Printrbot Play with a heated bed add-on. I'm using it exclusively with PLA. It worked great initially, but then I took the nozzle out and put it back in, and the Z calibration ...
11
votes
3answers
11k views

Grease for PLA sprocket

I am attempting to construct model tank tracks with accompanying wheels and sprockets. All parts will be printed in PLA. The tracks will be driven by electric motors. What would be a suitable grease ...
11
votes
5answers
8k views

Lines of PLA not sticking to the bed

When I am printing objects that have a lot of surface area on the first layer parts of that layer will rise up causing there to be gaps in the first layer. Here are two pictures. The first one was ...
10
votes
11answers
55k views

PLA and bed heating?

I've read different things about PLA and heat-bed. Some say it is not needed, others recommend 60-70°C, but not for the first layers. For larger objects I often have the problem that the object does ...
10
votes
3answers
7k views

Why doesn't PLA stick to heated bed?

I have a basic Creality Ender-3 with a black rough bed cover. I'm printing with PLA. After assembly, I printed 3 or 4 small toys sliced by Cura with basic settings. All were printed very well! ...
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. ...
9
votes
4answers
13k views

ABS or PLA for structural printed parts?

TL;DR Is ABS a better material to use for structural parts of a 3D printer, as opposed to PLA? I have been looking at various suppliers of printed parts for a Wilson II, on eBay. One supplier ...
9
votes
2answers
22k 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 ...
9
votes
2answers
5k views

Using the end of a spool

I've seen several Q&As on recycling and reusing plastic from failed prints, but what have you done with the last few meters of filament? I've been keeping the ends of PLA (or sections I needed to ...
9
votes
2answers
17k views

How do I know when filament is getting old, and what things can I do to correct for it?

I've heard I should store filament in sealed container, preferably with a desiccant. But let's say I let a spool get a little old on the printer, or I purchased a filament spool that was old or ...
9
votes
3answers
1k views

Can I really throw failed PLA prints on compost?

So they say PLA is biodegradable. But I still don't know how much biodegradable. I live in a flat and we have composting trash can in the courtyard. However if I throw PLA in there and it does not ...
9
votes
2answers
927 views

Prusa i3 hotend not getting to the temperature that I want (180 to 230 celsius)

I recently finished building my first printer. The only problem that I'm having is that the hotend is not getting hot enough to start printing with PLA (180 to 230 degrees celsius), the hotend getting ...
9
votes
1answer
1k views

Do I need a heated bed for printing PLA in an enclosed printer?

I am planning on building a large enclosed (Cartesian XY-Head) 3d printer. I want to keep the inital build time minimal and it is very likely I would need to build the ~50x50cm heatbed from scratch, ...
9
votes
2answers
4k views

Practical concerns smoothing PLA print with chloroform vapours

One way to give PLA prints a smooth finish is treatment with chloroform vapours (or other solvents, as mentioned in this answer). This method is even featured on Ultimaker website. I would like to try ...
9
votes
2answers
2k views

First layer overlap on one side

When printing the first layer, the infill overlaps on just one side of my print. Thereupon there's a rough, and a lot higher, surface on the first few millimeters after the wall. Printer: Arduino ...
8
votes
3answers
659 views

Is there a way to save a multi part print if one fails?

I'm printing 6 separate parts in one go, after 4 hours of printing one part failed, but the other 5 are printing nicely. Is there a way to prevent the print from printing the failed part and continue ...
8
votes
7answers
16k views

Constant under extrusion and filament grinding

I sadly have a big problem since a couple of weeks and I cant fix it myself. For over 20 prints, I had the same problems: At the start, everything goes well but at some point of time, my Creality CR-...
8
votes
2answers
5k views

Getting PLA to stick to a cold bed

Right now my heated bed is down and I had no time to try and fix it and I am trying to print something for a friend. I am having the PLA lift around the edges which I have NEVER experienced. The glue ...
8
votes
2answers
521 views

Irregular 3D printed part

I tried printing from an STL file on the QIDI TECHNOLOGY 3DP-QDA16-01 Dual Extruder Desktop 3D Printer QIDI TECH I. They recommend using the MakerBot software with the Replicator(Dual) profile. The 3D ...
8
votes
6answers
14k views

3D printing problem: waved walls

The problem When I print with my mElephant 3D printer from Makeblock, the prints come out with waved walls like in the picture below. I am using PLA filament from https://makeblock.lt What I tried ...
8
votes
3answers
2k views

Nozzle always "randomly" moves to 0 during print, then resumes

I recently bought an Anet A8 (https://pevly.com/anet-a8-3d-printer-review/). I've managed to get everything up and running, leveled the board, but am now running into a problem. At the start of the ...
8
votes
1answer
406 views

What makes a good PLA filament?

The quality of the filament is frequently mentioned either as the source of an issue but also as the solution to a problem. I know that the way you use,store and protect your filament will greatly ...
8
votes
3answers
485 views

Weird bumps cylindrical hole

Not quite sure what's happening here. I printed it as a single ball and had this effect. I thought it might be a cooling issue so I printed 4 at once but the issue still occurred. If I size the ball ...
8
votes
1answer
3k views

How to eliminate stringing and regulate flow rate?

I have been having a problem with stringing on my 3D printer, so initially I increased retraction distance from 6.5 mm to 8 mm. Then I tried again, with the same issue, so I increased ...
8
votes
1answer
817 views

Getting started: shell passes not fusing in x/y, and a slanted wavy pattern on vertical walls

I'm trying to find the main reason(s) for the imperfections I'm seeing in printouts from my printer. It is an I3 clone from Folger Tech. I got this printer from a friend who used it to print a larger ...
8
votes
2answers
2k views

M3D Micro printer stops extruding but is not clogged

I have an M3D Micro 3D printer that printed fine for a couple of weeks and then was plagued with issues afterward. I've done the fixes from the forum to get proper heating and cooling of the nozzle (I'...
7
votes
2answers
5k views

Why does my part-cooling fan cause stringing?

Really strange observation with my MP Select Mini V2 printing PLA. I've printed a dual-fan shroud so I can have a dedicated part-cooling fan. I've noticed that when I turn it on, the extruder starts ...
7
votes
2answers
6k views

Infill pattern comparison

I'm relatively new to 3d printing, and wanted to get a few things understood. Firstly, I am unclear on how Hexagonal infill is stronger than, say, diamond pattern. Can anyone explain how the ...
7
votes
2answers
428 views

Poor adhesion only for first couple of inches

I have a QIDI Tech 1. It has a heated bed, and a cooling fan attachment. Whenever I print without a raft, the first inch or two of material laid down does not adhere to the bed, but the rest of the ...

1
2 3 4 5 6