The Virtual Foundry  

211 S Water St
Stoughton,  WI  53589-2187

United States
  • Booth: E7853

Print metal, glass and ceramic on your current FDM/FFF 3D printer with Filamet™ sinterable 3D printing filaments made by The Virtual Foundry. Print on common 3D printing hardware, debind and sinter in common kiln hardware to make full metal parts.
Filamet™ prints just like standard PLA. The hardware is familiar, the print settings are familiar.


  • Pyrex® (Borosilicate) Filamet™
    Containing around 73% glass by mass, Pyrex® (Borosilicate) Filamet™ enables any FFF printer to produce glass objects. Once fired in a kiln, the result is 100% glass.
    Printed green parts and final sintered parts are opaque....

  • What you'll need to print:
    * An FFF/FDM 3D printer
    * Standard nozzle sized at 0.8mm
    * Blue painters tape for your print bed. Glue sticks also work on glass print beds

    Slicer Setup: Start with a basic PLA profile for your printer. Change the nozzle temperature to 225°C (437°F). Optionally, set the print bed to 40-50°C (104-122°F). Set the flow rate to 135%. Adjust settings from there as needed.

    Tip: Put a layer of blue painters tape on the print bed. Filamet™ has great adhesion to the bed.

    Nozzle: 0.8mm or larger

    Spool Placement: Reducing friction and pull on Filamet™ during printing is important. Try hanging the filament spool just above the printer.

    For more about this material, watch our podcast here
    Finished parts can tolerate heat up to around 600°C (1100°F)

    Create lab tools, filters, art and one-off glass parts.

    Debinding and Sintering Pyrex® (Borosilicate) Filamet™

    Items Needed:  
    Kiln / Sintering Furnace
    Refractory Container (Crucible)
    Sintering Refractory Ballast: AI₂O₃


    PB1 Place Al2O3 refractory in the crucible
    PB2:  Bury the print in the Al2O3
    PB3:  Tamp down, don't pack or smoosh
    PB4 Part should be surrounded by refractory
    PB5 Keep at least 15mm between the part and the crucible walls and top of refractory
    PB6 Put the crucible in the kiln


    PB7 Ramp furnace to 204°C (400°F)
    PB8 Hold at 204°C (400°F) for 2 hours*


    PB9 Over the course of 5 hours, ramp to 843°C (1550°F)
    PB10 Hold at 843°C (1550°F) for 3 hours

    Cool Down:

    PB11 Program ends - let furnace cool to room temp from Sinter Temp


    Made In America

PLEASE NOTE -- Supported browsers are: Internet Explorer - 10.0 and higher; Chrome - 55.0 and higher; Firefox - 50.0 and higher; Safari - 5.0 and higher. This program does not support compatibility view to run older browser software. Please make sure you are using the most up-to-date browser version to ensure complete use of the website.
For technical support with this webpage, please contact support.