Questions tagged [safety]
For questions about precautions with regard to immediate safety and security, when operating a machine, or handling printing materials.
51
questions
3
votes
1answer
81 views
Should I cure my 3D printed resin model before or after sanding down imperfections?
When printing a 3D model on a resin printer should I sand down imperfections and marks left by supports before or after curing?
What are the benefits and drawbacks of doing it either way?
2
votes
2answers
102 views
Running SLA printer in the bedroom
How safe do you think it is to run an SLA 3D printer in the bedroom? I am planning to run Mi Air Purifier 3H/C while the printer is running, I am also thinking about adding this inside the actual ...
1
vote
2answers
89 views
What is the best way to collect sanding dust?
I am pretty sure that sanding makes a lot of microplastics, so it would be nice to collect the dust, and melt it to got a blob of plastic again instead of millions of tiny particles. What is the best ...
2
votes
1answer
36 views
How should I finish a food safe print?
I'd like to print a mouse shell from food safe PLA.
I need it to be food safe, because sweat can dissolve any harmful chemical from it just like foods. I am not sure about how to finish it after ...
2
votes
5answers
205 views
What are some good safety tips for a 3D printing beginner?
I have just bought my own 3D printer. However, I am now reading that there may be some safety risks to 3D printing. I will be taking some precautions, such as buying an enclosed 3D printer (the ...
1
vote
1answer
168 views
How do I add an emergency stop button over Micro USB?
I have an Ender 3. I want to add an emergency stop button. Ideally it’ll plug in to the printer’s micro USB port and run the M112. I use default firmware and don’t ...
1
vote
2answers
140 views
How to replace the nozzle in my hotend assembly?
What should I take care of to replace the nozzle of the hotend assembly the right way?
What kind of data, precautions, tools, steps, and verification are important for replacing the nozzle?
The ...
1
vote
1answer
184 views
Order of a HEPA filter and Carbon filter in a filter-stack
I am going to make a filter for the enclosure of a 3D printer and want to remove both VOC's (with activated carbon) and Ultra Fine Particles (with a HEPA filter). But in what order should the filters ...
0
votes
3answers
151 views
What can cause a 3D printer to catch on fire?
From what I've seen, you can take a typical extruder heater, apply the designated supply voltage without temperature control, and as long as the heater isn't contacting something with a flashpoint ...
0
votes
1answer
47 views
Setup for a firefighting solution inside a heated chamber that doesn't destroy the printer?
Heated chambers, especially homebrew ones, might pose a fire risk if the printer inside has a really bad day and its TRP is defective or - oh horror - deactivated. We are dealing with a class A fire ...
4
votes
3answers
129 views
Aggressive resin solvent
For the purpose of cleaning, I need an aggressive solvent for cured or partially cured resin that will degrade resin down to its liquid state. I'm looking for one that would eat out specifically resin ...
0
votes
2answers
47 views
Long Print with Lotmaxx SC-10
I am trying to print something that might take 15 hours. I don't want to risk my printer so if I print for 15 hours, what is the worst that can happen? So far, I haven't printed anything for more than ...
3
votes
1answer
4k views
SLA printers: food-safe resin parts
I've actually read that resin printed parts are not food-safe in Reddit and Formlabs guide. However, it also says that food-safe can be achieved applying some kind of food-safe coat to the printed ...
1
vote
1answer
200 views
SLA printers: safety with resin contaminated disposals
I've purchased an Elegoo Mars Pro recently, and I've been watching hundreds of video of all kind of processes, and everyone tells the same: resin is toxic, so you should cure it before throwing it to ...
0
votes
1answer
60 views
Extruder increase temperature
I bought a month ago the Artillery Genius. Everything was pretty good until today, I was printing a test cube and it stopped pulling out filament, when I looked the temperature it was -15 °C, a few ...
1
vote
1answer
76 views
Paper as build surface - how will that work?
I have a Creality Ender 3 that needs a build surface (both the build-tak sticker and the removable stiff backer). My dad has been pestering me to try using paper as a disposable surface. I am hesitant ...
0
votes
2answers
304 views
Advice on power supply wiring for the UK
I've been looking at the Ender series and decided to take the plunge. But I'm unsure on electrical matters. The 110 or 220 volt switch, I assume goes to 220 V as I live in the UK but my main ...
3
votes
1answer
2k 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 ...
1
vote
2answers
655 views
All-metal hotend, cooling fan failures, and cold-side PTFE
I'm getting a pet bird soon, and I know that off-gassing from heating PTFE above 300 °C creates noxious fumes, which are bird-killer1. To try to prevent even the chance of that I'm replacing my ...
8
votes
2answers
7k views
Are silicone socks safe?
It's fairly common for E3D to sell silicone socks for their hot ends. There are also other companies that sell these silicone socks for their hot end cartridges.
According to a brief internet search, ...
4
votes
1answer
196 views
Would PC be considered food-safe in this setup?
I have one 3D printer with Makerbot mk10 extruder and I would like to print my custom cup for tea or coffee from PC.
Other than that, I came across idea that FDM printer will always leave small holes ...
3
votes
0answers
72 views
Good food-safe print filament or method? [duplicate]
I want to create a drinking cup that is entirely safe to consume liquids from. I’ve done some research, but I can not seem to find a cheap or easily accessibly food-safe filament. I have also had no ...
0
votes
2answers
850 views
Which 3D filament is 100% (or close to being so) food safe and non toxic? [duplicate]
I've recently bought myself a preassembled Prusa i3 MK3S printed and made my first projects. One of them was making a cup with my name on it. I want to use it to drink tea, water etc. I know, however, ...
0
votes
1answer
247 views
3D Printers imported from China - avoiding asbestos exposure [closed]
Many 3D printers are made in China, and as asbestos is still legal in China (with large ongoing production it seems).
It is thus quite possible to end up with a 3D Printer that has asbestos parts in ...
8
votes
2answers
11k views
Best way to deal with Resin Printers in your living space
I know I did something stupid. I just had to have a SLA 3d printer. The issue being I live in a one bedroom apartment. In the months of owning it I have made lots of amazing pieces, I also for the ...
-2
votes
2answers
168 views
Is there proof that 3D printer made nanoparticles are dangerous? [closed]
Facts:
Breaking down (or melting) plastic creates nanoparticles.1
3D printers melt plastic.2
Therefore, 3D printers make nanoparticles.3
Nanoparticles are evil.[citation needed]
Wait, What?
1. ...
4
votes
1answer
1k views
Are there printers that don't have thermal runaway protection?
This question asks about the reasoning behind thermal runaway protection and how to turn it on. However, how do I know if my printer does not have protection in the first place? Either because it is ...
16
votes
2answers
26k views
What is Thermal Runaway Protection?
What is Thermal Runaway Protection (TRP) and why should I enable it?
How does one do so in Marlin?
0
votes
2answers
338 views
Is it safe to use a 3D printed icing smoother?
I want to 3d print my own icing smoothers, but I'm not sure if its safe to have plastic from a 3D printer in contact with cake icing. Is there any harm in this?
4
votes
2answers
16k views
Is PETG filament food safe?
I've been trying to find a 3D printer filament which would not release any chemicals if in contact with heated water for a substantial amount of time. So far, I've easily ruled out both PLA and ABS, ...
5
votes
4answers
2k views
How fast can printer head move without damaging steppers?
Is there any risk of damaging stepper motors if I set too big travel speed?
What is maximum safe travel speed?
My printer is a German RepRap Neo.
I currently use 120 mm/s. Is it safe to ...
3
votes
1answer
748 views
Heatbed PID vs Bang-Bang - which one is more stressing on components?
I recently switched from Bang-Bang to PID controlled bed heating. The stock firmware pulsed On/Off with about 5 seconds each cycle. Now with PID, my bed keeps its temperature much more stable, the ...
6
votes
1answer
652 views
Upgrading to silicone heat bed, will it burn my house down?
I'm looking into upgrading my heated bed and replacing it with a silicone bed. I know nearly nothing about electronics, so I would like someone more knowledgeable to confirm if what I have theorized ...
4
votes
3answers
4k views
Ender 3 is capable of food safe printing?
I've been looking into the viability of manufacturing a replacement part for a kitchen blender that has a broken part. I found this page that talks about what makes a print food safe. One of the items ...
6
votes
7answers
4k views
Electric shock from ender 3 printer PSU
I had recently purchased an ender 3 and after setting it up and plugging it in, I received an electrical shock from the power supply. I live in the UK and so I was provided an EU to UK adapter which I ...
11
votes
5answers
51k 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
2answers
254 views
Out-gassing of printed material when heated
We know from this answer, 3d printed materials continue to outgas after printing and being cured. My question relates to this:
How much does heating the printed object after printing (or being cured) ...
7
votes
2answers
2k views
Mains powered heatbed safety
I'm building a 40x40x40cm corexy and I am quite impatient so I want the heated to reach the target temperature as fast as possible, so I ordered a Keenovo silicone heater
It is a 220VAC 1200Watt bed, ...
4
votes
1answer
769 views
MOSFET as a safety feature
When going through printer reviews, I often see the presence of a MOSFET listed as an important safety feature.
I understand the MOSFET to be a transistor, but I haven't understood how it is used in ...
6
votes
6answers
8k views
Commercially available 3D printer fume and UFP extractor
Is there a commercially available fume and nano particle extractor for a 3D printer, like the Ultimaker3 extended? I'm looking for a safe solution, to use at home, for around $800.
3
votes
3answers
335 views
Is it safe to print a rotor insert for a centrifuge using a makerbot?
Laboratory centrifuges have buckets that hold the sample tubes in inserts.
The buckets are the black things on the rotor in the upper left corner holding the bottles. Examples of inserts are shown ...
6
votes
2answers
3k views
Is Tetrahydrofuran viable for dissolving PLA and sticking PLA objects together?
According to Wikipedia, Tetrahydrofuran dissolves PLA. It also apparently dissolves PET.
THF is considered a relatively nontoxic solvent, with the median lethal dose (LD50) comparable to that for ...
5
votes
3answers
5k views
How to transport a 3D printer? Dismount needed?
I need to transport my FDM 3D Printer because I am moving.
What are the precautions that one should take? Should I dismount the motors and axes? I would definitively unplug the electronics as far as ...
3
votes
2answers
644 views
Creating positives for a food-safe silicone mold: safe?
First, a little background. A couple of years ago, I was researching making my own candy, and I came across this page: Lego brick shaped gummy candies, describing how to use real Lego bricks as a ...
2
votes
0answers
79 views
Do you provide ventillation for your 3D printer? [closed]
The university of Austin published a study saying that 3D printers emit toxic chemical vapors into the air when printing. They specifically point out that PLA vapors are shown as possible links to ...
3
votes
3answers
2k views
Can you use PLA material with food and drinks?
I would like to print fancy plastic cutlery sets or plastic glasses.
Is it safe to do it? Or bad for your health, if so, why?
22
votes
4answers
2k views
Which are the food-safe materials and how do I recognize them?
What materials which are commonly used in 3D printing, are food-safe?
Are there any certifications/grading process for such materials, which can help me with my cross-checking and selection?
I have ...
20
votes
4answers
9k views
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) ...
14
votes
6answers
12k views
Safety precautions when using acetone
Acetone can be used to smooth ABS prints. What safety precautions should be taken during its use?
7
votes
1answer
231 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 ...