Questions tagged [pla]

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

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What can cause Z height loss in the first few layers?

All my prints come out about 1 mm too short in the Z dimension. So for example a 20 mm cube comes out 19 mm high. A 10 mm cube comes out 9 mm high. The X and Y dimensions are fine. There's a little ...
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2answers
60 views

Expansion in bottom skin after first layer

I'm having an issue where prints with narrow tolerance come out fused. This makes it pretty much impossible to print anything with narrow parts. It seems to be mostly (maybe only) an issue in the ...
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Can PETG be used as support material for PLA?

Printing supports, either complete, or partially from PVA have not always resulted in successful prints according to my experience with the filament (used in a dual extruder Ultimaker 3 extended). PVA ...
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2answers
50 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&...
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66 views

Bumps in outer wall

First of all, I'm quite new to 3D printing. After printing some temperature towers, stringing and bridging tests, I wanted to print the Bechys to see everything working together. I'm getting some ...
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41 views

PLA Warps despite every effort to prevent it

I am using a Creality Ender 5 with a tempered glass bed. I could say that I am a seasoned 3D printing hobbyist but I am really out of ideas in this case. Currently I am using a grey colored PLA that ...
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36 views

Why does printing outer walls last cause corner curling?

In an old question I just self-answered, I had ongoing problems with corner curling that went away due to my switching to using Cura's Outer Before Inner Walls (...
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2answers
89 views

Bad quality at horizontal faces

I'm newbie at this stackexchange and I have a "FlashForge Finder"; lately there are many problems with the horizontal surfaces quality (Bottom and Top at the same time). As some issue guides suggests,...
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19 views

Prints are Squished

My printer prints stuff okay but its all squished and much shorter than the model, My z Axis Esteps is fine I checked for loose wires and overheating but I can't figure it out. My Temp is 195, .15 ...
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1answer
46 views

Material “clumping” when printing

I recently started swapping out my nozzle for different sizes. After a few times using a 0.4 mm, then 0.8 mm, then back to 0.4 mm, I now have this "clumping" going on when printing. The ...
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1answer
66 views

Print gets worse with every layer - Ender 3

First of all, I'm still new to this 3D printing and I've bought myself a second hand Ender 3 with some mods done to it. I've successfully printed with PLA in different colors but after a good first ...
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2answers
87 views

The filament is almost impossible to remove

Most people complain about the filament not sticking on build plate but mine is vice versa. At first it used to be very good. When I removed the magnetic bed the project would come off easily but for ...
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1answer
17 views

CTC i3 Y-axis thin / no filament deposition

I have this CTC i3 printer; when I print square test prints, as it moves along the Y-axis back to zero (front). It extrudes lines but very thin or none at all. But opposite direction along the Y axis ...
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1answer
72 views

Inconsistent printing results using same settings but different calibration models

I've got a second-hand Renkforce RF1000 which I've gone into more detail about in this question. The extruder works however, I get some inconsistent results. First I printed a calibration cube and ...
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1answer
134 views

Prusa MK3S 0.8 mm nozzle layers separating

I am currently printing a simple cup out of PLA (I will later anneal it). My nozzle is 0.8 mm and I'm using a 0.4 mm layer height. Unfortunately, the layers keep separating. They don't ...
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1answer
131 views

Why does PETG require slower speed?

PLA has a heat capacity of 1.8-2.1 J/g-K, while PETG 1.1-1.3 J/g-K. This means that each gram of PLA needs more energy to heat up. I assume no "melting latent energy", since we talk about plastics. ...
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1answer
1k views

Is PLA safe for masks?

So in light of the in going pandemic, I have begun printing masks for my family and a few friends. As I was printing them the thought occurred to me, "Is PLA safe to be breathing off of?" So that is ...
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1answer
73 views

Prusa MK3S weird 'Blobs' on PLA print surface

This is the first time I've run into this problem and it seems very confusing. I wanted to print a simple functional part out of PLA and although the first few layers were fine, the 6th/7th layer ...
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1answer
100 views

Problem printing circles/holes on Anycubic I3 mega

For some time I've been struggling to print models with holes going all the way through from top to bottom. Models without those holes print out just fine. I've spend quite some time on levelling the ...
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2answers
73 views

3D Print something as flexible as a cloth with PLA?

Would it be posible to design something that is as flexible and that can be printed with PLA that would work as a cloth? I did some research and found that there was a company named Electroloom but ...
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1answer
48 views

How can I solve the problem of line distortions on my prints?

Hello guys I have a little problem with printing. Whenever I print something there are always these lines my printer does, it's not a very big deal, but it looks rather ugly and I'd really appreciate ...
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1answer
86 views

My first layer becomes solid when sections are supposed to have small separations

I've only been 3D printing for a few weeks and most of my prints seem to come out fine, but when I try to print models which require a small clearance between sections of the model, e.g. various ...
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1answer
327 views

How to smooth PLA Prints without using sandpaper, solvents or paint

I need to smooth some prints with silk PLA filament. The silk PLA has a nice translucent effect but unfortunately if sanded results in an horrible matte finish regardless the sandpaper grade (I have ...
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2answers
146 views

Does moisture cause warping?

I'm printing flat objects (like rectangular) with PLA on a glass bed and 70 celcius degrees (also tried 75 celcius too, 65 celcius and lower ends with adhesion problem in general). Also I use brims ...
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1answer
55 views

Why can't I use PLA with ABS in a dual extruding 3D printer?

I have a XYZ Da Vinci duo and I want to run water soluble PLA with ABS How can I do that?
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3answers
83 views

Model stuck on the heating bed

I've tried to apply a sharp blade (the one that came witht he printer) to scrape the model off like I usually do but this model seems overly robust. What method can I do to take this off safely? See ...
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2answers
180 views

Top layers failing/underextruding on Creality CR-10

For some reason the only the top layers keep failing or underextruding on my prints, for no clear reason. Here are my settings: Slicer: Simplify3D Filament: 1.75 mm Black PLA from Filamentive ...
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1answer
746 views

Filament spreading apart and stringy on first layer

I keep having this issue on prints where the first layer has stringy lines that don't stick together. I've tried the following things Replaced nozzle and throat Used new filament (to rule out ...
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3answers
842 views

Why does my PLA filament keep snapping?

Why does my 3 mm PLA filament always snap near the spool some time (usually a few hours) after a print has finished? I have had it snap mid print but this is quite rare. I have 3 rolls of 3&...
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1answer
836 views

Fixing Z-Hop Stringing

I'm printing a model on my Ender 3 in Mika3D Silk PLA, which (just for reference, this is not atypical) has a stated temperature of 200 °C to 235 °C. I have used this filament before ...
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0answers
55 views

Shell detaches from the rest of the part

I'm printing with a Prusa MK3, with the following settings: 3 perimeters 50 % infill infill overlap: 50 % The filament is Polyalchemy emerald green (PLA). Nozzle temperature: 210 °C. ...
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4answers
600 views

Smallest dot/dot indent for Prusa MK3S using PLA

I want to make a project involving many small dots indents and I would like to know how I can calculate the smallest dot hole the Prusa i3 MK3S can extrude around on a layer using PLA. In other words, ...
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1answer
384 views

overlaying epoxy resin on PLA

I've been experimenting with FDM 3D printers and PLA for about a year now. I'm at the point where I'd like to produce something considerably stronger than PLA, and was wondering if there is a faux-pas ...
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2answers
872 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! ...
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2answers
98 views

Technique for removing support from Ultimaker 2+?

I have made some prints with the Ultimaker 2+ and Ultimaker 2 Extended+. The prints are in PLA. For slicing, I use Cura and I check the support checkbox (haven't gone to advanced settings to adjust ...
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3answers
131 views

PLA printings always ~0.22% larger

I was trying to print parts for a small CD-ROM drive based plotter based on this thing https://www.thingiverse.com/thing:3521286 But as tolerances are very small and need to match the existing parts, ...
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1answer
186 views

PLA Filament Not Softening During Load w/ FlashForge Creator Pro

Recently, after printing fine for several weeks, I've gone to load in white PLA filament into the right extruder on my FlashForge Creator Pro and the extruder is not pulling the white PLA filament ...
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1answer
254 views

Making Polyurethane molds with PLA (or ABS) 3D printed master

I want to make Polyurethane molds for concrete using 3D printed PLA or ABS master object. like this video: (this video is not about concrete of course!) I'm not sure ...
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2answers
134 views

Understanding water soluble support structures

I've just done my first print on an Ultimaker 3 Extended and I'm slightly disappointed with the results, so I'm trying to understand how I can do better next time. My first print Preparing for ...
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2answers
1k views

Reasons for a PLA print not sticking to bed all the sudden?

Plastic: Same Matterhacker PLA (filament I use every day) Printer: Anycubic i3 Mega (the one I use every day) Slicer: Ultimaker Cura 4.2.1 I don't know what's causing it, I haven't changed any slicer ...
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2answers
4k views

Ender 3 Pro Filament extrusion problems

I run quite a few Ender 3 Pro's using the same slicer settings (Simplify3D), and just recently I have noticed a very odd extrusion problem. I find that at about the same height on several printers ...
3
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1answer
131 views

Printing with White pla, problems while printing a benchy boat

So I am having trouble with this white pla, I am currently printing with a tempature of 225 degrees and going lower worsen the printing, but what I find strange is that it is always the same area that ...
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2answers
195 views

Is this articulated Turtle print failing because of over extrusion on a Taz Workhorse?

I've been working on calibrating my Taz Workhorse, and was dealing with some under-extrusion issues, despite checking the e-steps on the extruder and relatively modest retraction settings (2.5 mm ...
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6answers
608 views

Make holes in PLA print

I have a print I need to make holes in. I have read some other threads where the answers was in short, "don't, print the holes", and "make sure to make the hole from the top or bottom". The problem ...
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2answers
113 views

Raised shell edges on ocarina print. RF1000 sliced with Cura Engine

I am trying to print a 12 hole Ocarina I found on thingiverse. When printing I have to stop it around 25-30 layers because the edge of the shell is higher then the infill. G-Code of first 30 layers ...
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1answer
3k views

How to fight lots of stringing with PLA at low temperature (185 °C)?

I just got my first 3D printer (Creality Ender 3) on Friday, 2 days ago. It works great, but for some reason I'm getting a lot of stringing on my prints, especially the ones where the extruder head ...
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1answer
2k views

Ender 5: Bowden tube shifts in/out of extruder during retractions

I have an Ender 5 with an aluminum extruder that was printing beautifully for a few days after building it. I received a Capricorn bowden tube and new couplings as a gift, and replaced those, and now ...
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4answers
6k 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 ...
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2answers
1k views

First layer prints too thin causing gaps everywhere

I'd assume insufficient z offset but some areas of the first layer look fine. I've been struggling with this problem despite lots of attempts including z offset, infill overlap, belt retensioning, etc....
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1answer
66 views

Models are printing with a scratch on the side

I just recently got an Ender 3 and have been trying to learn the do’s and don’ts. My first model looked like it had under extrusion and stringing, but my second model looks like it has frequent “...

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