Category: Learning Center

Nylon

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Among all of the materials that you can use for 3D printing, nylon 3D filament arguably has the most versatile of features. When it comes to printing with filament nylon, it is as easy as when you print with ABS filaments.

Nylon printing produces really nice prints. Its finish is silky smooth. But you have to make sure that it is dry and has not absorbed moisture. Another thing to keep in mind is to select the best nylon 3D printer material. Doing so will give you excellent layer adhesion so that your prints are perfect. The details will be produced well, especially for those with intricate design.

The strength of nylon 3D printing material is excellent. You won’t experience it snapping or being brittle. When you will be printing thicker parts and with wider wall thickness and higher density infill, you will see that nylon 3D printer plastic produces tough parts that can tolerate shock. It also has superb impact resistance.

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Properties:

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All kinds of nylon filament thread are hygroscopic. This means that they will easily absorb water.

You’ll be surprised to know that nylon filaments are able to absorb 10% of its water density in a mere twenty-four hours. To avoid this, keep the filaments in a bag or container that is airtight and make sure you put a desiccant.

Nylon 12 absorbs only half of what the nylon 6 does so with that, we can say that you’ll have a better printing experience with nylon 12 as you won’t have any problems with too much moisture in the filaments.

Nylon prints that have absorbed water prior to printing will have finishes that are not desirable. You may even experience them popping in your extruder. If your nylon filament is sure to be dry, it will have a smooth and nice sheen. To ensure that you will have only the best quality prints, dry your filaments first before printing with them.

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Nozzle Temperature	220°C to 270°C
Bed Temperature	75°C to 90°C
Print Speed	Around 40 mm/s (may vary)
Soluble	No
Hygroscopic	Yes
Fatigue Resistant	Yes
Heat Resistant	Yes
Impact Resistant	Yes
Flexible	Yes (with thin walls)
Warping	Mild

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Tags Nylon, Nylon properties

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PVA (Polyvinyl Alcohol)

PVA, or Polyvinyl Alcohol, is a soft and biodegradable polymer that is highly sensitive to moisture. When exposed to water, PVA will actually dissolve, which makes it a very useful support structure material for 3D printing. When printing extremely complex shapes or ones with partially enclosed cavities, PVA supports can be used and easily removed by dissolving in warm water. Standard supports may have been difficult to print or remove in these situations. PVA can also be used as a model material if there is a need to make quick prototypes.

Some 3D printers such as the Ultimaker 3 have two extruders which means the machine can print with two different materials. “Classic” FDM 3D printers have only one extruder which means that the part itself and the support material are printed from the same material. After the print is finished, the supports need to be removed which can be a difficult job, especially if the part has complex geometries.

When the supports are made out of the same material as the part itself, it is a common issue that after you remove the supports marks are left on the surface of the print. With PVA that issue is avoided since it is a material that dissolves in water. Because PVA filament dissolves in water, it is a great choice for a support material when printing complex geometries, large overhangs and detailed features on models.

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EOS Nickel Alloy IN718

EOS Nickel Alloy IN718 is a nickel based heat resistant alloy.

Its composition corresponds to UNS N07718, AMS 5662, AMS 5664, W.Nr 2.4668, DIN NiCr19Fe19NbMo3.

Ni (50 – 55 wt-%) &nbsp&nbsp&nbsp Co (<= 1.0 wt-%)
Cr (17.0 – 21.0 wt-%) &nbsp&nbsp&nbsp Cu (<= 0.3 wt-%)
Nb (4.75 – 5.5 wt-%) &nbsp&nbsp&nbsp C (<= 0.08 wt-%)
Mo (2.8 – 3.3 wt-%) &nbsp&nbsp&nbsp Si, Mn (each <= 0.35 wt-%)
Ti (0.65 – 1.15 wt-%) &nbsp&nbsp&nbsp P, S (each <= 0.015 wt-%)
Al (0.20 – 0.80 wt-%) &nbsp&nbsp&nbsp B (<= 0.006 wt-%)
Fe (balance)

[TABS_R id=12944]

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EOS Cobalt Chrome MP1

EOS Cobalt Chrome MP1 is a cobalt-chrome-molybdenum-based super-alloy. It.It consists of cobalt,chromium and molybdenum mainly and other elements in smaller quantities.

Co (60 – 65 wt-%)
Cr (26 – 30 wt-%)

Mo (5 – 7 wt-% )

Si (<=1.0 wt-%)
Mn (<=1.0 wt-%)

Fe (<=0.75 wt-%)
C (<=0.16 wt-%)

Ni (<=0.10 wt-%)

[TABS_R id=13015]

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EOS Stainless Steel 316L

EOS Stainless Steel 316L is a corrosion resistant iron based alloy.

This kind of stainless steel is characterized having a good corrosion resistance and evidence that there are no leachable substances in cytotoxic concentrations.

Material Composition
Fe (balance) &nbsp&nbsp&nbsp Cr (17.00 -19.00 wt %-)
Ni (13.00-15.00 wt %-) &nbsp&nbsp&nbsp Mo (2.25- 3.00 wt %-)
C (<= 0.030wt %-) &nbsp&nbsp&nbsp Mn (<= 2.00wt %-)
Cu (<= 0.50 wt %-) &nbsp&nbsp&nbsp P (<=0.025 wt %-)
S (<=0.010 wt %-) &nbsp&nbsp&nbsp Si (<=0.75 wt %-)
N (<=0.10 wt %-)

[TABS_R id=13002]

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EOS Titanium TI64

EOS Titanium Ti64 is a Ti6Al4V alloy. This light alloy has excellent mechanical properties and corrosion resistance combined with low specific weight.

Material Composition:

Ti (balance)
N (<500 ppm)

Al (5.5 – 6.75 wt. – %)

C(<800 ppm)
V (3.5 – 4.5 wt. – %)

H(<150 ppm)
O (< 2000 ppm)

Fe(<3000 ppm)

[TABS_R id=12870]

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EOS Aluminum AlSi10Mg

AlSi10Mg is a typical casting alloy with good casting properties and is typically used for cast parts with thin walls and complex geometry.

Material Composition
Al (balance) &nbsp &nbsp &nbsp Si (9.0 – 11.0 wt-%)
Fe (<= 0.55 wt-%) &nbsp &nbsp &nbsp Cu (<= 0.05 wt-%)
Mn (<= 0.45 wt-%) &nbsp &nbsp &nbsp Mg (0.2 - 0.45 wt-%)

Ni (<= 0.05 wt-%) &nbsp &nbsp &nbsp Zn (<= 0.10 wt-%)
Pb (<= 0.05 wt-%) &nbsp &nbsp &nbsp Sn (<=. 0.05 wt-%)
Ti (<= 0.15 wt-%)

[TABS_R id=13003]

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EOS Stainless Steel GP1

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EOS StainlessSteel GP1 is stainless steel. Its chemical composition corresponds to US classification 17-4, European 1.4542 and German X5CrNiCuNb16-4. Steel including alloying elements like Cr (15 – 17.5 wt-%) Ni (3 – 5 wt-%) Cu (3 – 5 wt-%) Mn (max. 1 wt-%) Si (max. 1 wt-%) Mo (max. 0.5 wt-%) Nb (0.15 – 0.45 wt-%) C (max. 0.07 wt-%)

EOS StainlessSteel GP1 is pre-alloyed stainless steel in fine powder form. Its composition corresponds to US classification 17-4 and European 1.4542. This kind of steel is characterized by having good corrosion resistance and mechanical properties, especially excellent ductility in laser processed state, and is widely used in a variety of engineering applications.This material is ideal for many part-building applications (DirectPart) such as functional metal prototypes, small series products, individualised products or spare parts.

Typical applications:
– engineering applications including functional prototypes, small series products, individualised products or spare parts.
– parts requiring high corrosion resistance, sterilisability, etc.
– parts requiring particularly high toughness and ductility

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General process and geometric data
Minimum recommended layer thickness	20 µm 0.8 mil
Typical achievable part accuracy – small parts – large parts	± 20 – 50 µm 0.8 – 2.0 mil± 0.2 %
Min. wall thickness	0.3 – 0.4 mm 0.012 – 0.016 in
Surface roughness – after shot-peening – after polishing	Ra 2.5 – 4.5 µm, Ry 15 – 40 µm Ra 0.1 – 0.2 , Ry 0.6 – 1.6 milRz up to < 0.5 µm (can be very finely polished)
Volume rate – standard parameters (20 µm layers, full density – Inner core parameters (Skin & Core style, full density)	2 mm³/s 0.44 in³/h4 mm³/s 0.88 – 1.1 in³/h
Physical and chemical properties of parts
Material composition	steel including alloying elements Cr (15 – 17.5 wt-%) Ni (3 – 5 wt-%) Cu (3 – 5 wt-%) Mn (max. 1 wt-%) Si (max. 1 wt-%) Mo (max. 0.5 wt-%) Nb (0.15 – 0.45 wt-%) C (max. 0.07 wt-%)
Relative density with standard parameters	approx. 100 %
Density with standard parameters	7.8 g/cm³ 0.28 lb/in³