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SLS product news from Sinterit


Sneak peek of the new Sinterit 3D printer and an intro to SLS by Beau Jackson, 3D Printing Industry, 3rd May 2018

This week I was invited on behalf of 3D Printing Industry to the headquarters of Sinterit in Kraków, Poland.

Sinterit was founded with the goal of bringing selective laser sintering (SLS) 3D printing to the desktop, opening up access to the technology. In 2015 this goal was achieved with the launch of the LISA 3D printer and, during my visit I was given a hands-on introduction to this first generation machine. Now, in the coming weeks, Sinterit is set to launch a new 3D printer. Though full details will remain under wraps until later this month, we can share an exclusive preview of the forthcoming Sinterit SLS.

Robert Garbacz is a Support Manager for after sales troubleshooting and queries at Sinterit. The most important thing to remember with SLS, Robert tells me, is the direction and concentration of heat across the print bed. Polymer laser sintering is a delicate balance between the temperature of the powder bed, heated to just below melting point, and the contact of the laser. At the point where these two temperatures meet, the powder feedstock melts, then cools to form successive layers, building a finished, support free, 3D printed part.

Small 3D printed parts inside Sinterit HQ. Photo by Beau Jackson
Small 3D printed parts inside Sinterit HQ. Photo by Beau Jackson

Step 1, then, is to determine the positioning of a model. The balance between bed and laser. Admittedly, for me, positioning and orientation is perhaps the hardest part of the SLS 3D printing process. However, Sinterit’s proprietary Sinterit Studio software has a number of smart features to help an operator decide on model positioning. Due to the necessity of a heated print bed, a so-called “red zone” develops at the edge where temperatures are higher than recommended. Just inside the red zone, there is a “yellow zone” that can be happily breached by the edge of some models. The “green zone” however, at the center of the build plate, is the LISA 3D printer’s sweet spot, where the temperature from all sides of the chamber reaches an optimal balance. With a 3D model in the center of the bed, the operator then needs to consider orientation. Heat rises, which can cause distortion. A part containing bridges, such as a bottle, should be placed upright with the base on the bed to avoid collapse. As a guide, Robert recommends that many parts can be 3D printed on the LISA at a 45 degree orientation across each axis – X, Y, Z. This also helps with the grade of layers in a finished part. Press print.

Step 2, now the part is positioned correctly, we can begin by preparing the machine. The touchscreen menu on the Sinterit LISA guides the user through every part of this process – from cleaning the laser plate through to filling the bed with fresh powder. In total, the process took around 30 minutes on my first time. As Sinterit’s goal is to make this process as simple as possible, the company hopes that one day 3D printer will be operated at the “click of a button.” As yet though, there are many processes in the pipeline that require automation.

Preparing the printer. Photos via Beau Jackson
Preparing the printer. Photos via Beau Jackson

Post print

The estimated print time for a single spectacle frame, 3D printed as a test in my tutorial, was around 20 hours, including heat up and cool off time which is typically around 2 hours either side. However, one neat thing about SLS is that other objects can be nested into the bed without causing much increase in the print time. I started my spectacle frame print at 5pm on Tuesday, and by 10am the next morning it was ready for removal from the powder cake. Optomizing workflow and starting 3D prints at the end of the day will be commonplace for users of other AM technologies. Enter step 3.

Cleaning off the excess powder. Photos via Beau Jackson
Cleaning off the excess powder. Photos via Beau Jackson

Here we had to remove the powder cake from the bed, and clean all the excess. Like excavating a lost artifact, the process is first done by hand and with brushes.

When the majority is removed, the parts are then sandblasted by hand.

Sandblasting the spectacles in Sinterit's provided chamber Photo by Beau Jackson
Sandblasting the spectacles in Sinterit’s provided chamber Photo by Beau Jackson

After this step, excepting any further coloring or coating, and taking care to blast narrower parts of the object, the part is ready for use or, in my case, wearing.

Coming soon from Sinterit...

Extending its product line into the next stage, Sinterit is now ready to launch a new product to the market.

Like the LISA, the new system is an SLS 3D printer, but the technology has undergone a number of upgrades to fulfil customer requirements and further industrialize the capabilities of workshop SLS.

Paweł Szczurek, CEO and co-founder of Sinterit explains, “From the very beginning we saw the potential for [accessible SLS 3D printing]. This type of printer gives you a lot of freedom, strength and what you need for professionals that design mechanical parts.”

Sinterit’s latest 3D printer will be released later this month.

3DXpert lattices & textures


As seen at the Mach Show 2018, 3DXpert really does produce some amazing results for metal printing. It has a very large database of lattices and surfaces textures for a multitude of applications. Think about weight saving, reduced print time, better strength to weight ratio, defined surface roughness for improved fluid dynamics etc.

Some key points to note:-

• 3DXpert imports native CAD data, "not" STL

• 3DXpert is very fast

• 3DXpert toolkit and parameter options are vast

• 3DXpert has a database of amazing infills and lattices

• 3FXpert build simluation, predicts the geometry as affected by the heat of the process

• 3DXpert can be used with "ANY" 3D metal printer

© Image taken by Grant Cameron of CDG, the UK experts in 3DXpert.

3DXpert metal printing lattices & textures

CDG at Mach Show 2018


CDG are demonstrating Cimatron and 3DXpert at the Mach Show, courtesy of 3D Systems on Stand H7-345. The show is at the NEC, Birmingham from 9th to 13th April. Please ask for Tom or Grant. Also, look out for the new FabPro 3D printer!

3DS Mach Show

Cimatron version 14 is released


With over 200 new features and enhancements, Cimatron 14 offers major benefits and more user value to manufacturing shops across their entire range of operations. From Tool design through NC programming, this latest version helps to ensure that our customers are more productive than ever, in their competitive marketplace.

Cimatron v14

NC – New cutting strategies allow faster machining time with the use of cutters such as Barrel, Oval, Lens Tools. Overall reducing Rough machining time by an average of 20%. A new Guided Cleanup process allows controlling the milling direction of each region in Cleanup. Improved 5-axis Tilting toolpath and guiding curves for user
controlled tilting. A large number of new and improved capabilities that boost programming automation for plate machining, such as the Facing procedure, automatic Chamfer Recognition, wider Pocket Recognition capabilities and more functionality of Automated Drill as well as using templates for pocket automation.

Die – New integrated incremental analysis options enable the user to accurately simulate the design, and find design flaws before the manufacturing process. Users can see whether they have carrier or material problems, non-desirable punch results or SpringBack, as well as incorrect press force definitions.
New advanced Die design geometry tools such as Addendum faces and Fuzzy Offset were added to extend the application capabilities.

CAD for Tooling – Many long requested enhancements in Part, Assembly and Drafting were implemented for faster and easier design. New enhancements to the Mesh kernel of Cimatron with operations such as a new robust selection tool that was introduce for Split/Copy and Add/Remove commands. In addition, Advance 3D Text capability is now available for mesh and solid.

Mold & Electrode – New functions and enhancements for faster and safer Mold design such as Hole (Cooling) verification, Hole (Library) recognition and handling of ejectors with different diameters.

PLM Integration with Windchill – An integration with PTC Windchill PLM system. This Integration allows Windchill users who work with Cimatron files to perform Windchill operations (such as sync, check out/in, etc.) from within a Cimatron assembly or from the Cimatron browser.

CDG help school win Student F1 prize


Thank you so much for making it possible for our team to reach race day. None of that could have been done without your generous sponsorship. At the competition we won the entry class competition and had a fantastic day. We may even enter development class next year. Thank you for making it possible.

Yours sincerely

Colin Soppitt

Team SeedWing

The Mary Erskine School 


Well done boys!

F1 in schools

FabPro now with Dental Biocompatible materials


Digital Light Printing (DLP) technology uses a projector to image each layer within a photopolymer-based dental material for easy and precise printing, with the ability to build several smaller parts on a single platform for increased productivity. 3D Sprint™ software for print preparation and management provides an easy user interface, and changing materials and post-processing is easy with comprehensive solutions.FabPro 1000 Dental Models

  • Certified and Biocompatible Materials

    3D Systems is optimizing the recently announced FabPro 1000 desktop printer for compatibility with selected NextDent biocompatible materials for specific dental applications, starting with surgical guides and orthodontic and denture models.

  • Start to Finish Workflow

    The FabPro 1000 can be combined with other 3D Systems dental solution components to create a comprehensive and trusted workflow. This includes the NextDent LC-3DMixer for optimal stirring of materials, and the NextDent LC-3DPrint Box for UV post-curing.

    LC-3DPrint Box Mixer for the Fabpro 1000

    3D Systems NextDent Ortho Rigid Material

  • Lower Costs, Delivered

    Engineered for material efficiency and repeatability, the FabPro 1000 makes digital dentistry more accessible and affordable than ever before. And it’s simple to use—from set-up to material loading, post-processing, cleaning and maintenance—making it a perfect entry-level benchtop solution.

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