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# Tag Info

Accepted

### Which is more durable to sunlight/weather - PLA, ABS or PETG

Ok, I tried all 3 materials. PLA failed after less then one day, I believe it deformed from the constant pressure and fell out (I didn't find the part but I didn't really search for it, there's some ...
• 2,351
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### Which are the food-safe materials and how do I recognize them?

Food safety is a property of both the process and the material. You can't stick food-safe material in a printer that has previously been used to print something food-dangerous and expect the result to ...
• 14.5k
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### Is PLA filament conductive?

Normal PLA is non-conductive. You can take an $\Omega$-meter to a test part if you're really concerned somehow you have some PLA that is conductive. There is a caveat that your color may include metal ...
• 196

### Would 3d-printed objects outgas in vacuum?

I found much the same question at Does PLA outgas? An answer there pointed to a NASA outgassing database, Outgassing Data for Selecting Spacecraft Materials, and says that: ABS (unknown supplier), ...
• 3,161

I have never used ABS, because I have a young child at home and no ventilation system (just to be safe). I have however used PETG, a crystal clear brand competitively priced on AMA-ssive online ...
• 421

### Is PLA filament conductive?

PLA itself falls in the category of non-conductors, with a resistivity ($\rho=R\frac A l=\frac 1 \sigma$) in the order of $10^{16}\ \Omega \text m$ (see here), similar to other plastics. Following ...

### Which is more durable to sunlight/weather - PLA, ABS or PETG

PLA would be a non-starter for outdoor use as it's biodegradable and can breakdown in sunlight. Albeit slowly, but won't be useful for long term project. ABS would be a good choice for longevity, as ...
• 1,845
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PETG is great stuff to work with. It is stronger than ABS also. It prints slower than ABS and PLA. The formulas vary quite a bit from vendor to vendor. I have used 3 brands, and each of their ...
• 201

### Would 3d-printed objects outgas in vacuum?

Almost all of the FDM materials outgas even at normal atmospheric pressure, and, in fact, most plastics outgas. Further, FDM and many other printing processes do not guarantee no internal voids - ...
• 1,803
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### Reducing amount of material

Updated to match the improved question format. There are a few ways to reduce material usage. First is what you have touched on. Which is to reduce the design by punching out holes, and removing all ...
• 3,003

### Which are the food-safe materials and how do I recognize them?

Food Contact Substances There are regulatory agencies in most developed countries that regulate food containers. In the USA, the Food and Drug Administration (FDA) regulates Food Contact Substances (...
• 1,803

### Which are the food-safe materials and how do I recognize them?

There are 3 things that might affect food safety of 3D printed objects: The filament - it's food safe only if it says so on the package (even if the plastic is not toxic you don't know about the ...
• 2,351

### 3D printing for outdoor use: "What types of filament are most weather resistant?"

PET(G) is a strong contender. It is very strong and water-resistant, and as such is often used to make pop bottles. PLA has a reputation for being "biodegradable" and therefore it is often ...
• 14.5k

### Which is more durable to sunlight/weather - PLA, ABS or PETG

I might be late to the party, but I have a suggestion. Why not use ASA filament, it's the kind of plastic used in car cup holders, lawn rakes and sprinkler heads, it is both heat and cold resistant, ...
• 171

In addition to what @AsaDeDeBuck said, PETG is also more flexible than PLA, and less stinky than ABS. Furthermore, some PETG variants like to accumulate on the nozzle (particulate build up) and then ...
• 234

PETG is great, but definitely not as easy to print as PLA. However the advantages of higher impact resistance, temperature resistance and longevity make it superior to PLA for parts that require those ...
• 111

### Is PLA filament conductive?

PLA is non-conductive at room temperature, but when you heat it up over 70 C it is no longer as great an electrical insulator as the part will begin to fail. These temperatures could occur in ...
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### Are there any metals that exhibit a large glass state?

A few things are required for effective extrusion-style 3d printing materials: It must stay where placed by the nozzle long enough to harden (or, alternately for pastes and such, have a shear-...
• 6,446

### 3D printing a boat hull

You will really need to specify your constraints better because the short answer is yes, what you describe is entirely possible, but without knowing whether you are limited to a particular budget, ...
• 183

### 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, ...
• 51

### Are there any metals that exhibit a large glass state?

I think the closest you're going to get is with a composite material. Over the last 2 years or so, there have been more and more composite filaments emerging on the market for consumer 3D printers. I ...
• 6,214

### Are there any metals that exhibit a large glass state?

I"m no expert on this, but the article at https://en.wikipedia.org/wiki/Amorphous_metal may be relevant for you. There are some special alloys, such as gold/silicon and various titanium-based ones, ...
• 3,161
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### 3D printing a cardboard box

The closest thing you will find is Woodfill plastic. As time goes on we are seeing more and more PLA that is infused with other materials. Woodfill will look and feel like waxy wood. We are pretty ...
• 3,003

### How to print TPU material with 3D printer

Elastomers do much better on direct-drive heads (pulled to the head by the motor) than on Bowden designs (where the material is pushed to the head by a motor). This is because the flexible TPU or TPE ...
• 2,282
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### What filaments allow air to pass but not water vapor?

It is difficult enough to make 3D-printed objects water-tight (unless you paint them). Making them permeable to air but not water vapour is too big an ask, I think.
• 2,972

### Are there any metals that exhibit a large glass state?

I spent some time looking at making an FDM machine that would print bronze filament. An alloy commonly made into wire had a difference between the solidus and liquidus temperature of only 50 degrees ...
• 4,398

### Bonding PETG to glass

The solvents that can dissolve PET are pretty nasty -- I wouldn't personally handle any of them outside a lab fume hood. If you have that, a 50/50 mix of MEK and methylene chloride should work. (...
• 6,446

### How to reuse modelling bases for the Stratasys uPrint SE Plus?

What I tried and worked is to apply water based normal Glue-stick on the tray and with few drops of water distribute it evenly across the tray surface, let it dry and then you are good to go!