Digital Fabrication and 3D Printing

The MPML manages digital fabrication resources in our Materials Teaching and Design Lab when used for research purposes. A ULS VLS4.60 laser cutter, a Minitech CNC Micromill, 3D scanners, and a suite of 3D printers with complementary capabilities: two Formlabs Form2 SLA printers, an Ultimaker 5S printer, two Ultimaker3 printers, and a Stratasys Objet Connex 350 high-resolution polyjet printer. The MTDL provides instruction and resources for students to explore the next generation of material fabrication techniques. It is also used extensively for MRSEC outreach programs, especially during the summer.

*** Notice ***

During Phase 3, our printers are operating as a drop-off service. The Stratasys and Form2 printers are currently unavailable

Stratasys Objet Connex 350

The Stratasys Objet Connex 350 is a polyjet printer that offers our highest resolution prints in up to two materials.

Specifications

  • Build size: 13.4 x 13.4 x 7.9"
  • XY Resolution: 600 dpi
  • Z Resolution: 1600 dpi
  • Materials: VeroWhite, VeroClear, VeroBlack, TangoBlack

Formlabs Form2

Our Form2s are SLA printers suitable for small high-resolution parts.

Specifications

  • Build size: 5.7 x 5.7 x 6.9"
  • XY Spot size: 140um
  • Effective resolution for enclosed features: 500um
  • Z Resolution: 100, 50, 25 um
  • Materials: Clear, White, Grey

Ultimaker S5

The Ultimaker S5 is a professional FDM printer with dual extruders.

Specifications

  • Build size: 19.5 x 18 x 20.5"
  • XY Resolution: 400um
  • Z Resolution: 200, 150, 100, 60um
  • Materials: PLA, PVA (support)

Ultimaker3

The Ultimaker 3 is a professional FDM printer with dual extruders.

Specifications

  • Build size: 7.8 x 7.8 x 7.8"
  • XY Resolution: 400um
  • Z Resolution: 200, 150, 100, 60um
  • Materials: PLA, PVA (support)

Flashforge Creator Pro

ProtoMAX Waterjet Cutter

Minitech CNC Micromill

ULS VLS4.60 Laser Cutter

Universal Laser Systems VLS4.60 laser cutter system with 50W CO2 laser and 24" x 18" cutting bed. Rapid prototyping with various kinds of plastic and wood. Rotary attachment.

Specifications

  • 50W CO2 Laser
  • HPDFO Lens available
  • Rotary attachment with Perfect Chucks
  • 24" x 18" honeycomb cutting bed
  • Air assist

Ultimakers

For Ultimaker jobs, you must use the newest version of Cura (currently 4.7.1 or above) to load your job into a Cura project with either an Ultimaker 3 (not S3) or Ultimaker S5 stock profile depending on which printer you want to use. Make sure the 2nd extruder is configured for support with PVA and a BB 0.4 print core. You must then properly select all settings for materials, resolution, infile support, adhesion, etc. Slice your model and make note of estimates for materials used and time. If there are any errors with model printability you must fix them. Please limit batch jobs with multiple models to less than 8 hours. Finally, save your Cura Project in the .3MF format using the top menu. Do not export your file to 3MF or use the "Save to file" button as all printer project settings will be lost.

Form2

For Form2 jobs, you must use the newest version of Preform (currently 3.8.0 or above). Create a virtual Form2 printer and load your job. You must then properly select all settings for material, layer thickness, and supports. Generate supports and the appropriate tilt for your models. You should avoid printing surfaces parallel to the build plate as this increases the likelihood of print failure and causes wear and tear on the print tank. Make note of estimates for materials used and time. If there are any errors with model printability you must fix them. Finally, save your Preform project in the .form format.

Submission

When your files are correctly formatted, upload them to your shared MTDL Box folder. If you don't have a shared MTDL Box folder please contact staff to request one.

When your jobs are uploaded, you may submit them for printing with an online form:

https://forms.gle/AfTPdUhzxwHCz5or9

You must submit jobs for the correct printer with accurate information included for printing materials, amounts of materials used, time estimates, and the exact filename of your job. Submissions with incomplete, ambiguous, and/or incorrect information will be rejected. Submissions with model printability errors will also be rejected.

Pickup

After submission, we will print your job on a best effort basis as time allows. We cannot guarantee fast turnaround times.

When your job is complete, you can pick it up in the box outside of GCIS ESB18. You will need to remove any support materials by dissolving in water or mechanical pruning.

Cost

Usage of the 3D printers is supported by the quarterly Facility Access Fee and materials used will be recharged. While operating as a Drop-Off Service, we will not recharge staff time spent printing jobs.

  1. Never leave the machine running unattended. Stay in the room and pay attention to your job at all times. Turn the power off to the cutter if you must leave the room, even for short times.
  2. Never put unapproved materials in the laser cutter. When in doubt, ASK.
  3. Never put unknown materials in the laser cutter.
  4. Always keep ventilation at maximum. DO NOT close the exhaust vent.
  5. Always use the ‘air assist’ N2 purge. Always fully open the N2 valve.

  6. Clean up and remove all debris generated by your job. Use the HEPA vacuum to clean out the honeycomb downdraft table after each job.
  7. All users MUST be trained and authorized by MPML staff.

  8. All users MUST have their own key. Lab or shared keys are not allowed. Lock the room door when you are finished.
  9. All users MUST make a reservation prior to use.

  10. All users MUST sign in and sign out of the logbook.

  11. All users MUST sign in and sign out of the computer with their CNET ID.
  12. Immediately REPORT all accidents (eg: fire, smoke, & laser carriage crash).
  13. DO NOT attempt to fix or repair any problems on your own. Report them.

  14. The laser cutter is provided for lab research and outreach projects only. Personal projects are not allowed. Use the Hack Arts Lab instead.

Failure to follow these rules will result in immediate loss of user privileges

When in doubt, ASK MPML staff FIRST

Allowed Materials

  • Acrylic, Plexiglass,  & Lucite up to 3/8" thick. Cast acrylic is preferable. Leave protective paper on when cutting. Remove paper when engraving or rastering.

  • Delrin (POM) up to 1/8" thick.

  • Medium Density fiberboard (MDF). Use bare wood only. No veneers or plastic laminates.

  • Matte board, cardboard, posterboard.

  • PDMS or Silicone rubber. Make sure PDMS is halogen-free

  • Plywood (hardwoods with low resin content: birch, balsa, maple, cherry, polar, walnut, oak)

  • Glass for engraving only. Do not try to cut glass (even coverslips).

  • Other materials may be allowable, but must be approved by MPML Staff prior to use.

Strictly Prohibited Materials

  • Polyvinyl chloride (PVC)
  • Any material or plastic containing halogens (fluorine, chlorine, bromine, & iodine)
  • Polycarbonates (Lexan)
  • ABS
  • Vinyl
  • Any reflective materials. No mirrored acrylic.
  • Soft woods with high resin content (pine, cedar, spruce, fir)
  • Wood laminates or veneers
  • Fiberglass (circuit boards)

Use of any unapproved materials may result in severe damage to the laser cutter, dangerous fumes, fire, or other serious personal safety hazards.

Anyone using unapproved materials will immediately lose their access to the laser cutter and be held liable for damage to the machine.