What you are purchasing is a ceramic 3D printing resin recently developed by AlphaSense. Such a resin was built upon our traditional regular and castable resin products. By loading the broad- band photocurable resin with proper amounts of fine ceramic powders and additives, we were able to generate a brand- new resin product for the fabrication of ceramic parts and components. The resin is curable with commercial and DIY DLP/SLA/LCD 3D printers utilizing UV LEDs and arc lamp sources. Useful wavelength was up to ~420nm.Different from traditional resins, the ceramic resin requires extra handling and prepartions:
- The build plate needs to be roughened using a relatively rough sand paper to enhance adhesion to the green part
- The resin needs to be fully mixed and agitated before using to ensure uniform ceramic powder concentrations among the layers
- Exposure conditions vary with different printers, and the user needs to fine tune those parameters based on his/her own printer. Using a DLP 3D printer with top-down build scheme, the printing parameters are 15 seconds for the first 5 layers and 12 seconds for subsequent layers, 3 seconds immersion in the resin and 2 seconds settlement at the liquid level.
- Washing with isopropyl alcohol and post drying is required to remove uncured resin from the print parts.
- Sintering duration for different parts need to be tuned. The sample sintering curve was for a model with 1" thickness measured from the thickest part. For sample with larger thickness, the duration for the resin removal/burn-out and sintering (i.e. 2- hour and 0.5 hour) at 350 and 1250 oC need to be proportionally increased to achive good quality sintered parts.
- Ceramic glaze materials can be subsequently applied to give your sintered parts a final touch, making it more artistic and vivid in color.