Adam Davis
  • Member for 6 years
  • Last seen more than 1 year ago
Is 3D printing safe for your health?
17 votes

Almost all 3D printers have issues that could cause health problems. FDM/FFF printers heat plastic to a temperature that may cause it to off-gas, and these byproducts may not be healthy. SLA ...

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Resolution Drawbacks
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15 votes

The biggest effect I've see on resolution is due to plastic stress due to thermal gradients. The higher resolution prints build up more layers of material, and each layer has a cumulative effect on ...

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How many times printed printer can print it-self?
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15 votes

The files used to print these objects are digital, and do not degrade in any way after each printing. There are no side effects or degradation that occurs over time due simply to printing them ...

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Can 1.75 mm filament be used in a printer that takes 3 mm filament?
Accepted answer
14 votes

Typically an extruder and hot end are designed for one or the other, and cannot support the other without mechanical changes. The extruder may not be able to grip a smaller diameter filament with ...

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Would 3d-printed objects outgas in vacuum?
11 votes

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 - ...

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

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 (...

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Conversion of 3 mm ABS filament to 1.75 mm
Accepted answer
7 votes

In theory, making filament is easy. You take a 3 mm hotend with a 1.75 mm hole, and extrude the 3 mm (sometimes actually 2.85 mm) filament, let it cool, and then reel it up. In ...

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Printing multiple materials with different properties on the same device
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7 votes

Yes and no. for instance simultanious printing of plas plastic and lets say metal. Is such a printer available or in development ? Practically speaking, no. Metal printing requires significantly ...

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How to minimize damage when removing an ABS print from a heated glass print bed?
Accepted answer
6 votes

I moved to a plain glass heated bed with a brush applied acetone and ABS mixture. Using an old emptied nail polish bottle with brush, I added some acetone and then threw in ABS pieces until it reached ...

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Are there any methods of limiting exposure of hazardous fumes and odors emitted by heating the plastics?
Accepted answer
6 votes

Using negative pressure ventilation and a suitable organic filter will limit your exposure to toxic compounds, but won't completely remove them from your environment. Enclose your printer in as air-...

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Marlin menu navigation slow while printing
Accepted answer
5 votes

A Delta printer requires constant complex calculations to produce straight lines while printing. The firmware, therefore, spends most of its time figuring out the step and timing sequence, and only ...

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When should I use a raft, when should I use a brim?
5 votes

A raft helps when the part has few points of contact with the print bed, and doesn't therefore adhere well at points within and without the part. A brim helps when the part doesn't adhere well around ...

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Issue with weird heated bed temperature fluctuations
4 votes

It really looks like either a bad thermistor or bad electrical joints. Are the connections to the thermistor itself crimped, or soldered? Are there connectors near the thermistor that can get heated ...

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What can cause a sudden and dramatic loss in the inter-layer registration of my prints?
4 votes

There are many factors, here are a few things to check: I'd first suspect filament feeding. This type of ridging can be caused by a filament coil that is binding occasionally, or a filament that ...

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Are there biocompatible materials available to the general public?
4 votes

There are printers designed for medical use, and the manufacturers supply them with varying levels of certification and testing, however I've not seen a filament manufacturer certify their material as ...

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How to print metal-like parts?
4 votes

parts ... I don't want to ... feel like a plastic This is harder than looking like metal. Plastic doesn't have nearly the density of metal, nor the thermal conductivity of metal. So by touch people ...

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My print is warping: how can I ensure that it cools evenly?
Accepted answer
4 votes

Without more information we cannot address what is causing your edges to turn up. This can depend on the model being printed, the process, the material, the bed, and the method used to bond it to the ...

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Is it necessary to have both hot ends on a dual extruder printer at the same height?
3 votes

If your printer has no way to move the heads up and down, or otherwise out of the way, and your slicer isn't able to detect collisions and account for head height differences in the produced G code, ...

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Can you use PLA material with food and drinks?
2 votes

Having performed a quick search through all the resources at the FDA Food Contact Substance resource, I cannot find PLA in any list except an occasional notification that a specific manufacturer has ...

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Printing copyrighted objects as a print shop for a customer
2 votes

There are two aspects to this question that probably should be addressed separately. This is not legal advice and I'm not a lawyer, so consult with an experienced IP attorney. Copyright law may ...

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Optimal ratio of fresh to used nylon powder
Accepted answer
1 votes

You'll find generally that mixing 40% new polyamide with 60% recycled polyamide will result in a reasonable finish and part. You will obviously want to use all new for parts requiring the best ...

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