Advanced Digital Design and Manufacturing (ADDFab): Central Facilities: UMass Amherst


Most popular plastic PA2200 (nylon-12) is our state-of-the-art material, providing high resolution, strong and resilient parts. The material is white and can be dyed in a variety of colors (red, blue, green, orange, yellow, pink and black). The best part about this material is that it works with the Selective Laser Sintering (SLS) process, which doesn’t require support structures and lets you print just about any geometry you can imagine. We print the PA2200 on our EOS P110 printer. (Technical sheet)

Most popular metal “15-5” stainless steel is our most popular metallic material – an iron alloy with 15% chromium and 5% nickel. It is a corrosion resistant stainless steel that can be polished to a mirror finish and heat treated to increase its strength and hardness. We print 15-5 on our EOS M290 printer. (Technical sheet)

Multi-material “Digital materials” are a mixture of UV-curable resins (acrylate chemistry) that can produce rigid or flexible parts, or somewhere in between. The basic materials are called VeroWhite (rigid) and TangoBlack (flexible). They can be combined in the same room, and mixed to make shades of gray, or rooms with rigid and flexible sections combined. We print digital materials on our Stratasys Objet Connex350. (Technical sheet)

Carbon fiber We have two options for heavy duty polymer parts with integrated carbon fiber. “Onyx” is a nylon material with chopped carbon fiber mixed in, and “Continuous Carbon Fiber” is nylon with a carbon fiber thread embedded inside. Both produce incredibly strong plastic parts. (Technical sheet)

  • EOS M290 Metal 3D Printer

    The M290 uses a laser to sinter a bed of metallic powder, allowing the layer-by-layer creation of geometrically complex, high-quality metallic parts. Using the M290, fully functional parts can be designed to be lighter, more complex, and better integrated into an assembly.

    • Materials: Metals, including stainless steel, nickel and others
    • Build volume: 250 x 250 x 325 mm
    • Laser: focus diameter of 100 microns

  • Optomec LENS 450 metal 3D printer

    The LENS 450 works by depositing controlled amounts of metal powder on a work surface and sintering with a laser. The approach allows the machine to be used for parts repair, hybrid manufacturing, as well as full additive manufacturing of parts.

    • Materials: Metals, including stainless steel, nickel and others
    • Build volume: 100 x 100 x 100 mm
    • Printing accuracy: 0.25mm position, 0.025mm linear resolution

  • EOS Formiga P110 3D Printer

    The Formiga P110 uses a laser to sinter a bed of plastic powder. The process facilitates the creation of batches of parts and enables complex geometries and quality constructions from high strength plastic materials.

    • Material: Polyamide
    • Build volume: 200mm x 250mm x 330mm
    • Layer resolution: 0.100mm

  • Stratasys Objet Connex350

    The Connex350 Object allows the creation of parts with several materials. Materials can be printed separately or in specified proportions, providing a range of mechanical properties. The parts can be any mixture of rigid and flexible materials, creating prototypes with different durometers of hardness, or even flexible overlays on rigid materials.

    • Materials: several exclusive plastic and rubber materials
    • Build volume: 342 x 342 x 200 mm
    • Layer resolution: 16 microns
    • Printing accuracy: 20-85 microns

  • Markforged Mark Two Printer

    The Mark Two printer switches between two nozzles to create carbon fiber, Kevlar or fiberglass. The resulting parts have high strength-to-weight ratios that can be used for tooling, assembly, and prototyping.

    • Materials: Nylon with carbon fiber, Kevlar, fiberglass
    • Build volume: 320 x 132 x 154 mm

  • GCC LaserPro Spirit GLS

    The Spirit GLS enables fast laser cutting and grayscale engraving at 256 levels. In addition to cutting potentially complex geometries in materials like wood and acrylic, it can etch aluminum.

    • Materials: cuts acrylic and wood; engrave aluminum
    • Build Volume: 36 ” x 24 ” x 7 ”
    • Thickness: up to 3/8 “acrylic

Internal (UMass)


Printing services
SLS – EOS P110 (nylon-12) $ 0.09 / cc $ 0.16 / cc
FFF – Markforged Onyx and Continuous Fiber 2,5x the cost of the mat’l 3.5 x the cost of the mat’l
Item – Connex350 Multi-material 2,5x the cost of the mat’l 3.5 x the cost of the mat’l
Metal – Steels and nickel alloys Contact us for a quote
Hourly equipment
Laser Cutting Machine (Spirit GLS 80W) $ 12 / hour $ 20 / hour
Wire EDM $ 13 / hour $ 20 / hour
Daily equipment
EOS M290 (DMLS metal) $ 360 / day $ 550 / day
Optomec LENS 450 (Metal DED) $ 250 / day $ 400 / day
Material testing equipment
Instron Electropuls E10000 $ 100 / day $ 175 / day
Engineering / design and laboratory services
A laboratory technician $ 50 / hour $ 80 / hour
Design Engineering (Junior) $ 50 / hour $ 80 / hour
Design engineering (senior) $ 135 / hour $ 200 / hour


  1. Use of equipment requires completion of safety training via UMass EH&S and paid training with ADDFab staff
  2. Support for untrained users is available at lab technician rates
  3. Please contact Dave Follette [email protected] for any questions
  4. Rates in effect July 1, 2021. Rates until June 30, 2021-FY21 Fees approved by the specialized service center

Advanced Digital Design and Manufacturing (ADDFab): Printing services, research and training in several advanced additive manufacturing technologies. For metal printing, the installation includes the EOS M290 for direct laser sintering of metal and the Optomec LENS 450 for directed energy deposition. Materials include stainless steels, nickel alloys, cobalt-chromium alloys, and other experimental metal powders. For polymer printing, the installation includes an EOS P110 selective laser sintering printer (material: PA2200, nylon-12), a Stratasys Objet Connex350 material jet printer (VeroWhite, VeroClear, TangoBlack, UV curable materials), a MarkForged Onyx One (nylon with chopped carbon fiber) and a MarkForged Mark Two (nylon with continuous carbon fiber strands). In addition, we have a media blaster, a powder unpacking station, a water blaster and a media cup for post-processing polymer parts. For software, we use Solidworks for 3D CAD modeling and Materialize Magics for STL manipulation and repair.

  • Training is available for every printer and tool in the lab. We also offer hands-on workshops for industry professionals and workforce development, in designing parts for additive manufacturing and operating laser-based 3D printers.

Fees approved by the specialized service center for fiscal year 21

Updated January 2021

The Advanced digital design and manufacturing lab (ADDFab) is available to academic institutions, industry and the local community.

ADDFab has three main goals to serve this diverse customer base: (1) design and print superb metal and polymer parts, (2) support academic research, and (3) provide training and education opportunities.

1. Design and print great parts

Two metallic printers use fine metallic powders to build parts as large as 25x25x30cm with details as fine as 250um. The EOS M290 is a powder bed system that uses Direct Metal Laser Sintering (DMLS) to build parts layer by layer while the LENS 450 is a Directed Energy Deposition (DED) system that deposits lines of metal and can produce parts from custom metal alloys.

Three polymer printers cover three different printing technologies. The EOS P110 is a nylon powder bed printer that uses selective laser sintering (SLS) to produce parts. It has a build area of ​​23x20x30cm and can produce details as fine as 250um. The main advantage of the SLS process is that it does not require support structures for the overhanging parts, so it can easily print extremely complex and delicate geometries. EOS-P110The Connex350 is a multi-material printer that can print flexible and rigid materials in one piece, and even mix materials to adjust material properties and colors. Markforged printers extrude nylon filament in a fused filament manufacturing (FFF) process and can print in chopped carbon fiber infused nylon (Onyx) or incorporate a continuous strand of fiberglass, Kevlar, or carbon fiber in each layer.

For customers who need technical or design assistance to prepare parts (or ideas!) For printing, we offer engineering advice on an hourly basis with undergraduates or experienced engineers.

2. Support university research

ADDFab facilities are available for use as a department where our staff does all printing, but also for dedicated use on a daily or weekly basis. Training is available where students and faculty can learn how to operate the equipment and then use it to conduct their own additive manufacturing research.

We also provide printing services and technical support to faculty from all university departments.

3. Training and education opportunities

ADDFab supports undergraduate and graduate courses in additive manufacturing by printing parts, offering tours, and training students in the use of the equipment. We also work in partnership with student groups and high schools.

For industry and the local community, ADDFab is organizing a series of workshops on additive manufacturing. These are intended to broaden the understanding of how 3D printing will affect the manufacturing industry and to provide practical skills using industrial grade 3D printing technology. Both types of courses are offered throughout the year.

If you have any questions on how to work with ADDFab on a future project, please contact us at [email protected] We can’t wait to work together!

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