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Questions tagged [pla]

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

2
votes
0answers
29 views

Spraying aluminium hydroxide nanoparticles onto PLA as fire retardant? [on hold]

Several scientific papers study FR-PLA (fire resistant PLA) in which Aluminium Hydroxide nanoparticles are melt blended into the PLA (example source: Advances in Flame Retardant Poly(Lactic Acid). ...
1
vote
1answer
34 views

Sealing PLA & oil-based art supplies?

I will be printing an item that's usually made out of resin, but my version will be made out of PLA. Here are some questions I have: Usually, people seal the resin with brands such as Testor's, ...
3
votes
1answer
56 views

3D printed part sticking to the support layer

I am using a Flash Forge Creator, and when I print big parts (only in this case) I have about 25% of the bottom of the printed object sticking very hard to its support layer. And I spend a lot of time ...
2
votes
1answer
72 views

PETG Sticking to Nozzle

For a while now, my AmazonBasics PETG filament has been working like a charm. Now, it is balling up on my nozzle. I've tried slowing it down, re-leveling the bed, etc. I don't want to go through the ...
2
votes
0answers
37 views

E3D V6 PLA prints leaning / not square

When printing a 1cm test cube after upgrading to the V6 the cubes are tilted ever so slightly. This does not happen with the stock MK8 hotend, or when printing with the V6 with Polycarbonate+...
3
votes
3answers
449 views

Filament extrusion always stops at some point during print

I own a Creality CR-10 (using Ultimaker Cura for slicing) and I am experiencing terrible printing problems. My problem: I am not able to print anything that takes several hours to print. For parts ...
2
votes
1answer
282 views

Extruder get loose

Printer: Anet A6 I'm gaving some trouble with a loose hot end. I was trying to peel of some PLA when I noticed the whole thing was kinda loose. I could pull it out very easy. So I tried to put it ...
3
votes
4answers
95 views

What causes burnt corners?

Today I was printing some parts and I got these burn marks at the corners: This is the first time I see this on this printer (Anycubic I3 Mega). I was using more or less the same settings (in Cura) ...
3
votes
4answers
172 views

Heatercartridge bolt stuck

After a brownout a print failed and it got the whole hotend covered in PLA. I am now in the process of replacing some parts on the hotend (one of the thermistor legs broke of) and also wanted to take ...
1
vote
1answer
68 views

Designing lenses

Recently, I did discover that it might be possible to print fully solid, air free and thus optical homogenous, even with PLA. How can I design a proper focusing lens (or rather: single sided lens ...
4
votes
4answers
296 views

Printing rectangular grid

I am trying to print an item with a rectangular grid (using PLA on Ultimaker 2+): Holes are 4x4 mm, distance between holes (wall thickness): 1mm. I am printing with 0.4 mm nozzle. Unfortunately, ...
5
votes
1answer
118 views

Sandable primer suitable for PLA?

What kind of primer should I be using for my PLA prints? I want to be able to sand the object after applying the primer for a smooth finish before painting. Would something like this work? https://...
2
votes
1answer
85 views

How to remove exess filament from bed after removing model

Recently got an Anycubic I3 Mega Printer and I've been playing with what it can do, but after a model is done it leaves residue on the build plate behind that is bugging me. Do I NEED to remove it? If ...
2
votes
2answers
123 views

Makerbot Replicator (5th generation) poor print quality

Current main problem is that at various points during a print, one layer doesn’t attach well to the layer below it. That is what appears to be causing the artifacts in the second picture below, but ...
1
vote
1answer
40 views

Trying to control temperature of hotend using PWM signal and MOSFET

I have a 40 W, 12 V resistance heater in the hotend. It also has a 100 kΩ thermistor built in. I am using an Arduino to read the temperature on the LCD. This is working fine. I want to use this ...
4
votes
3answers
90 views

Considerations when pausing a print job

Some prints take a long time and, as I'm not in a workshop, I need to pause the print sometimes. Are there any special considerations I should take when pausing, or can I literally just click pause, ...
1
vote
2answers
83 views

Silicone spray as a release agent?

I've just printed my very first part and it did not want to come loose from the build plate, it fact, it just broke instead. I can heat the bed up again and work it off, but I wondered if a release ...
1
vote
3answers
602 views

Flashforge Adventurer 3 Filament feeder loud thumping noise, not enough filament extruded

My Flashforge Adventurer 3 is not printing properly. Filament feeder makes repetitive loud thumping noise and not enough filament is extruded. Resulting print (if completed) is not solid. Results ...
3
votes
0answers
50 views

Does color changing PLA require a hardened nozzle?

I've seen comments about glow-in-the-dark filament being abrasive and would damage a bronze nozzle so a hardened nozzle is recommended. Is the same true for filament that changes colour when warm (...
2
votes
1answer
170 views

Cantilever snap-fits print axis

I'm new to 3d printing and need to design and print a case on an Ultimaker S5 using PLA. The case is box like and consist of a top and a bottom part. I was thinking about cantilever snap-fits to join ...
3
votes
1answer
476 views

Monoprice maker select v2 doesn't extrude but is not clogged [closed]

So I have been printing lately, and got a new spool of filament. It will extrude when I pre-heat the nozzle and manually extrude it, however when I start to print, it doesn't extrude any filament. ...
7
votes
3answers
1k 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 ...
2
votes
2answers
225 views

Inconsistent filament flow on anet a8

My Anet A8 was working and printing great until my hotbed connector snapped and shorted out my motherboard. After replacing the connections to my hotbed and my motherboard I can't print anything ...
2
votes
2answers
266 views

How to remove unwanted filament trails from sharp corners

I'm a 2-week newbie at 3D printing, working on a new Qidi Xpro machine (that is solid and one that I like). So, I do not want to believe that this issue is caused by my printer itself. I'm hoping that ...
3
votes
2answers
237 views

Bowden tube clog

There's PLA filament clogged in my bowden tube, is there a best practice for cleaning it out or do I need to replace the whole tube? Also the couplings are totally stuck :S - so I guess those would ...
3
votes
1answer
289 views

Print speed and settings for printing below 0.1mm resolution on PLA

I recently purchased an Anycubic Kossel Linear Plus delta printer, and I'm interested in trying to print slightly below the 0.1 mm stated lower limit of layer height. I'm not interested in trying to ...
5
votes
2answers
707 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
1k 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 ...
5
votes
6answers
1k 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-...
9
votes
2answers
5k 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 ...
7
votes
3answers
4k 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 ...
5
votes
1answer
576 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 ...
3
votes
1answer
228 views

Baking old PLA spool

Context A while ago I bought a kit for a 3D printer, along with filament etc. however, after some weeks I ran into some mechanical problems and because I had a lot of other things to do at the time I ...
4
votes
1answer
805 views

Enclosure Ventilation

I am building an enclosure for my 3D printer (Anycubic i3 Mega) and I'm wondering about heat and ventilation for my machine. My enclosure is is build from five 50x50x50 cm Plexiglass frames glued ...
4
votes
2answers
278 views

Extrusion stops during print

I changed the filament (PLA) in my Wanhao Duplicator I3+. I ended the first try to print when I saw that the 'lines' were too thin. I re-sliced with a higher temperature (195°C instead of 190°C). Now ...
12
votes
3answers
5k 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 ...
4
votes
2answers
309 views

Uneven wall thickness with test cube

I noticed that one edge (which is also the starting point of the print) is always bigger than the other three. Additionally, the walls do not have the same thickness as well. The wall thickness (...
5
votes
2answers
766 views

Getting bumps/warts on surface, Cura doesn't want to comb?

I have not been able to print smooth and round shapes using Cura 3.3.1 (or earlier) without bumps. I think they are seams? The filament is PLA. Combing is enabled, which I thought makes it so that ...
3
votes
1answer
61 views

Dual PSU with one switch fuse

My home built printer has been having issues running properly. The x/y/z motors will run freely with standard non build position commands but when they are suppose to start a raft layer and they ...
5
votes
2answers
268 views

PLA coating for water irrigation 3D printed parts

I was considering printing some pieces for my irrigation system, like tube connectors and such. I am aware that PLA is hydrophilic so I was wondering with what kind of product I could coat the pieces, ...
3
votes
1answer
431 views

How can I stop the flare out of the bottom layers?

On nearly all of my prints, my first few layers are flared out slightly. I'm using painter's tape for the bed, and the bed temperature is at 60 °C while the extruder is at 205 °C. ...
6
votes
5answers
1k views

Prusa i3 PLA fails to stick to first layer on curves

I have been searching around on google and not found any answers to this dilemma. I am using a Prusa I3 printer with PLA, trying to print horseshoes for the company I work for. They are for model ...
6
votes
2answers
379 views

Filament clogging just above feeding tube - Duplicator 6

I have this clogging problem on my 3D printer that I am having a really hard time to solve. I am a hobbiest so in no way am I a professional with regards to 3D printers. I also know that this is a ...
4
votes
2answers
502 views

Weird underextrusion in vase mode?

It's my first time printing in vase mode, and I noticed my printer underextruding badly. The settings have not been changed from default vase mode settings in slicer, and earlier I was printing non-...
5
votes
1answer
990 views

Temperature offset on Wanhao Duplicator i3 Mini

I'm trying to print with PLA on a new Wanhao Duplicator i3 Mini. In regular temperature settings (200-210°C) the printer underextrudes and the extruder motor skips, which led me to suspect low nozzle ...
3
votes
1answer
594 views

Prusa I3 - Burn marks on print

This is an issue that's started happening recently. This is a Prusa I3 using a 1.75mm pla filament The settings for this print are as follows ...
2
votes
1answer
136 views

3D850 stuck in the nozzle

I am trying to use a 3D850 PLA filament which is supposed to work without any issues with any PLA printer. As a printer, I use Dagoma NEVA which is supposed to work with any PLA filament. I can print ...
6
votes
1answer
140 views

3d printer drip problem

I have a problem with my 3d printer. When I am printing, the printer seems to drip. I am very confused because I never saw this before and I do not know what to do. I attach a picture of it. Why ...
5
votes
1answer
1k 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 ...
3
votes
1answer
324 views

Is it advisable to use additional external fan(s) for printing PLA?

I was wondering if adding (an) extra fan(s) (not connected to the printer, but blowing on the print area) could improve the quality of PLA based prints(printing at 210 C). The printer already has a ...