10PC Premium LM8 UU Metal Shielded Linear Bush Ball Bearing 8 x 15 x 24mm

Designed to use for markets bearing, transmissions, gearboxes, belts, chains and related products, and offers a spectrum of powertrain rebuild and repair services

Product Features

  • This is a high quality ball bearing
  • Linear Slide Bush LM8 UU(8 x 15 x 24mm) Qty 10

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[Sintron] 1.75mm 3D Printer Drucker Kossel Mini All Metal MK8 Extruder hotend 0.4mm Nozzle for Bowden RepRap Rostock Delta Kossel Mini Prusa i3 (Kossel-Extruder)


This MK8 extruder is an open source universal suitable for most RepRap and DIY long distance feeding filament 3D Printers.

We have made the NEMA 17 Stepper motor with 4 wires which is specially designed for 3D Printer Controller RAMPS 1.4, so you just need to plug it in, and there you go! no need to buy from others and waste a lot of time trying to figure out how to connect them.

The extruder is almost the most important part for 3D printer, also the most difficult part to calibrate. we have made all metal design to replace plastic parts bowden extruder.


(1) Compatible with ABS and PLA 1.75mm.
(2) NEMA 17 Stepper motor is included in this transaction.


While using with PLA filament, please always remember to keep the fan on, otherwise it might get jammed and ruin the hotend. PLA is more easier to get jammed, so it might require some patience to practice.
For ABS, we would also suggest to keep the fan on, as this is also better. also remember to purchase filament from good reputation seller, as the filament is very important!

(1) Nozzle : 0.4mm
(2) Voltage : 12V/24V
(3) Motor Model : SL42STH40-1204A
(4) Nozzle Flow Rate : 24cc / h
(5) Thermistor Tpye : NTC 100K 3950
(6) Sports Shaft Speed : 10-100mm

Motor Parameters

(1) Model:SL42STH40-1204A
(2) Step Angle : 1.8°
(3) Rated Voltage : 2.55 V
(4) Rated Current : 1.7 A
(5) Phase Resistance : 1.5Ω
(6) Phase Resistance : 2.3 mH
(7) Number of Lead Wire : 10-100mm

Product Features

  • (1) Compatible with ABS and PLA 1.75mm.
  • (2) NEMA 17 Stepper motor is included in this transaction.
  • (3) We don’t just sell them, we also provide good after-sales service, so welcome to discuss with us, we will try to do technical support as much as we can, please feel free to send us an email, we will also help you to complete the project !

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LDRD Seminar Series: 'X-ray Vision of Metal 3D Printing'

Tao Sun

Physicist Tao Sun (XSD) will discuss his Laboratory-Directed Research and Development (LDRD) sponsored work at the LDRD Seminar Series presentation Tuesday, Dec. 12, 2017. “X-ray Vision of Metal 3D Printing” begins at 12:30 p.m. in the Building 203 Auditorium. All are welcome to attend.

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Additive manufacturing (AM), or three-dimensional (3D) printing, refers to a suite of different processes that build up parts by adding materials one layer at a time based on 3D computer models. Compared with traditional manufacturing techniques that build by removing materials from a bulky chunk, AM creates customized complex products by adding materials together with satisfactory geometric accuracy, and thereby exhibits unique advantages, including more efficient use of raw materials, less generation of hazard waste, less consumption of energy, shorter supply chain and reduced time to market. AM largely breaks the tooling constraints by allowing optimized design and fabrication of products with extreme complexities without the need to sacrifice the part functionality for the ease of production.

During the past three decades, AM of metallic materials has advanced tremendously, particularly in the fields of medical, aerospace, automobile and defense applications. Laser powder bed fusion (LPBF) is one of the most extensively used metal AM techniques. In a typical LPBF process, a laser beam scans across a thin layer of metallic powders and locally melts the powders through to the layer below. Although the process is conceptually simple, many highly dynamic and transient physical phenomena are involved because of the extremely high heating and cooling rates (e.g., melting and partial vaporization of metallic powders, flow of the melt pool, powder ejection, rapid solidification, nonequilibrium phase transition). Oftentimes, the complex interactions among these processes result in a product with a rough surface, significant porosity, large residual stress, and/or unfavorable phase and grain structures.

To understand the mechanisms responsible for the formation of these microstructural defects, our LDRD project team built a small laser AM apparatus and carried out high-speed X-ray imaging and diffraction experiments at the 32-ID-B beamline of the Advanced Photon Source. We demonstrated that quantitative information on melt pool dynamics, powder flow velocity, solidification rate, and phase transformation can be obtained from the time-resolved X-ray images and diffraction patterns. The experimental and data analysis approaches we developed in this project enabled the first-ever observation of the LPBF process with unprecedented spatial and temporal resolutions. The results from the high-speed X-ray experiments are helping researchers not only understand the physics underpinning the formation of different structural defects, but also build high-fidelity computer models to guide the process optimization for manufacturing parts with different geometries and dimensions.


Tao Sun has worked at Argonne’s Advanced Photon Source (APS) since 2005, and is now a physicist in the X-ray Science Division (XSD). He received his bachelor and master degrees in materials science and engineering from Tsinghua University in 2002 and 2004, respectively. Sun received his Ph.D. in materials science and engineering from Northwestern University. His thesis research on nanostructured oxides was supported by Argonne’s Graduate Program under the supervision of Vinayak Dravid and Jin Wang. After graduation in 2009, he joined the Time-Resolved Research Group of XSD as a postdoc researcher, working with Murray Gibson and Wang on developing coherence electron and X-ray scattering techniques. In 2012, he became a staff scientist of the Imaging Group of XSD, and started to co-manage the 32-ID beamline of the APS. Sun’s research covers a broad range of topics in materials science and X-ray physics. His current projects focus on developing and applying cutting-edge synchrotron X-ray imaging and scattering techniques to understand highly dynamic processes in hard and soft condensed matters, e.g. laser-metal interaction in the additive manufacturing processes. Sun has been serving as committee members of Broader Impact Program Development and Meeting Assessment subcommittees of the Materials Research Society. He is a fellow of the Northwestern-Argonne Institute for Science and Engineering.

Anycubic Upgraded Full Metal i3 Mega 3D Printer with Ultrabase Heatbed and 3.5 Inch Touch Screen

Anycubic Upgraded Full Metal i3 Mega 3D Printer –UltraBase Version

Quality Warranty:
Anycubic takes care of all parts of unartificial quality-related issues with a replacement for 3 months after the purchase date,and provide lifetime technical support.
Technical Support Email Address:

Printing Technology: FDM (Fused Deposition Modeling)
Layer Resolution: 0.05-0.3 mm
Positioning Accuracy: X/Y 0.01mm Z 0.002mm
Print Speed: 20~100mm/s (Recommended Speed 60% )
Travel Speed: 100mm/s
Nozzle Diameter: 0.4 mm
Support Print Materials: PLA, ABS, HIPS, WOOD
Build Dimensions : 210 x 210 x 205mm
Operational Print Bed Temperature: 110oC
Operational Extruder Temperature: max 260oC
Ambient Operating Temperature: 8oC – 40oC
Leveling Type: Manual Leveling
Input Formats: .STL, OBJ, .DAE, .AMF
Slicer Software: Cura
Cura Output Formats: G-Code
Connectivity: SD Card & USB support
Input Rating: 100-240V AC, 50/60Hz, 1.5A
Printer Dimensions: 405 x 410 x 453mm
Package Weight: 15kg

Youtube Video:


Package List:
1x I3 Mega
1x 8G SD Card
1x User Manual
1x PLA filament ( 1Kg )
1x Tool Set

Product Features

  • Large Build Volume :210 x 210 x 205mm.
  • Plug and Play with User Friendly Screen :Complete the assembling with 8 screws ,then start to play through a 3.5-inch TFT touch screen.
  • ANYCUBIC UltraBase: ANYCUBIC patented heatbed,super adhesion,smoothy lattice bottom surface. Easier to take off model by hands, so you won’t need masking tape and glue stickers any more.
  • Filament Detection: Automatic printing pause when filament runs out, resume after filament re-load with just one click.
  • Anycubic Advantage:We take care of all parts of unartificial quality-related issues with a replacement for 3 months after the purchase date,and provide lifetime technical support.

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