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Share Your Experience: Take the 2024 Developer Survey
19 votes
Accepted

Are silicone socks safe?

Neither your thermistor nor your heater cartridge should ever be capable of becoming loose from your hotend, let alone the fact it's capable of reaching 800 °C before your printer even ...
craftxbox's user avatar
  • 854
19 votes

Are silicone socks safe?

Silicone socks are safe to use, provided your printer is safely operating and you are using the silicone socks in their operating temperature range. Your current setup is NOT SAFE! When the heater ...
0scar's user avatar
  • 36.1k
17 votes

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

You are probably pretty safe printing PLA Regarding emissions, the following recent report, Emissions of Ultrafine Particles and Volatile Organic Compounds from Commercially Available Desktop Three-...
markshancock's user avatar
  • 2,490
17 votes
Accepted

What is Thermal Runaway Protection?

What is TRP and how does it work? Thermal runaway protection is basically self-explaining; it is protection against the temperature getting out of control. Essentially, the firmware checks whether ...
0scar's user avatar
  • 36.1k
13 votes
Accepted

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

Fire is the most obvious risk - firmware can now detect some of the more obvious failure modes such as a detached thermistor, but loose or failing connections can still overheat. A smoke alarm is a ...
Sean Houlihane's user avatar
9 votes
Accepted

Ender 3 is capable of food safe printing?

Food packaging needs to comply with regulations. One certification agency informing about these (and their service to certify for them) is TÜV Süd, another is SAI global. A summary of the GFSI can be ...
Trish's user avatar
  • 22.1k
9 votes
Accepted

How fast can printer head move without damaging steppers?

Short answer no We use stepper drivers to limit the current, the travel speed is at capped by the amount of current supplied by the stepper drivers. This prevents the stepper motors from damaging ...
E Doe's user avatar
  • 532
9 votes

Best way to deal with Resin Printers in your living space

One of the options you have would be to create a negative pressure in your working area. This would be accomplished by installing a fan with the flow direction to the outside. The inside portion of ...
fred_dot_u's user avatar
  • 11.7k
9 votes

3D Printing with malicious intent

Ethics and justification: If you have physical access to the device you could just... physically damage the device. Running arbitrary G-code is just more complicated Most printer farms have a strict ...
OneWasNotEnough's user avatar
9 votes
Accepted

What are the risks of leaving to print overnight?

Presuming that you're talking about an 8 hour period, your printer should be designed to run for 8 hours continuous anyway, so nothing will happen regarding the bed or screen that wouldn't happen with ...
Aaargh Zombies's user avatar
8 votes
Accepted

MOSFET as a safety feature

In the world of (cheap) printers, "MOSFET" has taken on a meaning of its own. For a long time, 3D printers have had MOSFETs on board of their motherboards to switch the heated bed. In the past two ...
Tom van der Zanden's user avatar
8 votes

Electric shock from ender 3 printer PSU

The "shock" is likely from noise filtering circuitry at the power supply's input. For filtering, every power supply has a small capacitor that connects the live input wire to ground (a so-called "...
Tom van der Zanden's user avatar
8 votes
Accepted

How to transport a 3D printer? Dismount needed?

Yes, fix the motors and any other loose/movable parts. Remove the bowden tube if it's there, and any other parts that are sticking out. Put the whole thing in a a bag to protect from dust, and put the ...
Dampmaskin's user avatar
8 votes
Accepted

Is PETG filament food safe?

Many manufactures list their filaments as being food safe, but I would not treat this as "gospel truth". Apparently, the FDA considers PETG to be safe for food contact, but they are probably thinking ...
Mick's user avatar
  • 3,180
8 votes
Accepted

Are 3D prints safe to touch right after printing?

FFF/FDM: Yes FDM/FFF runs by melting a filament and letting it cool again. As soon as the printed parts are cooled down to below 50°C (which is rather quick) handling them is safe. There's no chemical ...
Trish's user avatar
  • 22.1k
7 votes
Accepted

Commercially available 3D printer fume and UFP extractor

Following on from Harvey Lim's answer, to give a concrete example of a DIY filter, which uses active carbon, see ABS 3d Printer Nanoparticle and Chemical Exhaust Air Filter: Description Enclose your ...
Greenonline's user avatar
  • 6,528
7 votes

How fast can printer head move without damaging steppers?

What would my printer do if I set very big travel speed? If a speed is set above the limits of the stepper, the stepper will stop rotating or stutters. Basically there are 2 limits, the first is ...
0scar's user avatar
  • 36.1k
7 votes

Is there proof that 3D printer made nanoparticles are dangerous?

At the time of this writing (March 2019), I don't think theres any study on the health effects of nanoparticles emmitted by 3D Printers. The general consensus seems to be right now that those ...
Jonas Lang's user avatar
7 votes
Accepted

Best way to deal with Resin Printers in your living space

First things first: Resin is very aggressive. It can very easily make you hypersensitive, even to the fumes of it. So step 1 is easy: Limit exposure Wear gloves when working with resin. As you live ...
Trish's user avatar
  • 22.1k
7 votes

What are the risks of leaving to print overnight?

I've done 4 day prints with no issues. I just have my printer in a place where there is nothing that can catch fire in the unlikely event that it decides to start burning. For the rest it's just like ...
Kilisi's user avatar
  • 1,375
7 votes

Should I be worried about the lead in brass nozzles?

No. Leaded brass is around 2 % lead and the wear is negligible. How much has your nozzle worn? If your nozzle has worn from 0.4 mm to 0.5 mm over that year, there's maybe $$ ((.5 mm/2)^2-(0.4 mm/2)^2)...
Dave X's user avatar
  • 171
6 votes
Accepted

Upgrading to silicone heat bed, will it burn my house down?

The heated bed port on your board has a 11A fuse. It will not work for a heated bed requiring 16A of current, no matter how good the MOSFETs might be. Note that the terminal block might also not be ...
Tom van der Zanden's user avatar
6 votes

Is it safe to use a 3D printed icing smoother?

As mentioned, FDM 3D printed parts are flawed for food service and prep use regardless of the material, because of the small gaps between lines where bacteria can grow, and because your printer isn't ...
Joel Coehoorn's user avatar
6 votes

Is PLA safe for masks?

PLA itself should be safe, at least chemically, but there's no guarantee that additives in a particular filament manufacturer's material are safe. From this standpoint it would be best to use an ...
R.. GitHub STOP HELPING ICE's user avatar
6 votes

Aggressive resin solvent

Wear Gloves. Returning is impossible Resin does not just harden, it polymerizes into shape from monomers in a chemical reaction. That means to break it down, you need to destroy the whole chemistry. ...
Trish's user avatar
  • 22.1k
6 votes
Accepted

Aggressive resin solvent

Concentrated nitric acid will remove all organics, including your skin, wire insulation, etc. It will work on a glass plate, but the fumes would eventually damage the plastics on your printer unless ...
Perry Webb's user avatar
  • 2,376
6 votes

What are the risks of leaving to print overnight?

Assuming the printer is operating correctly, there are no lifetime/wear concerns from running it that long. Many-hours and even -days prints are normal usage, and print-farms run as businesses run ...
R.. GitHub STOP HELPING ICE's user avatar
5 votes
Accepted

Electric shock from ender 3 printer PSU

You need to take particular care when using plug adaptors - they are not always made to a high standard, and it is possible that the earth connection is not present. If you suspect that the earth ...
Sean Houlihane's user avatar
5 votes

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

I have been printing daily for 2 months with PLA and have noticed respiratory problems! I feel like slight pneumonia symptoms! I also have very sensitive lungs that react to things that would not ...
Jeff McCray's user avatar
5 votes

Would 3d-printed objects outgas in vacuum?

This naturally depends on the ultimate pressure you require. I have made a few tests with LEGO pieces (ABS) in vacuum and reached 10-5 mbar without problems. I did not try to go any lower. Otherwise, ...
Kyamon's user avatar
  • 51

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