Key variables affecting mechanical performance of 3D prints

Biocompatibility, safety and mechanical properties depend and are affected by the sum of several variables:

• resin composition:
• inadequate design of 3D resins can lead to the usage of toxic and poor perfoming raw materials affecting the biocompatibility, safety and mechanical properties of 3D printed resins
• Effect of fine tuning on biocompatibility and mechanical properties
• printing apecifications: light power, wavelength and energy dosage: 
• Effect of printing specifications on biocompatibility and mechanical properties
• Effect of printers on biocompatibility, safety and mechanical properties
• Key variables affecting mechanical performance of 3D prints
• Tg, HDT, and mechanical properties depend on printing specifications
• printing orientation:
• vertical, horizontal, and different angle printing of dog bones and bars for testing eg elongation, tensile and flexural strengths provide significantly different quantitative values due to anisotropy since 3D printed materials are typically printed layer by layer exhibiting lower or higher interlayer weakness and mechanical properties in the X, Y and Z directions
• cleaning chemicals:
• the use of isopropanol IPA reduces significantly the mechanical properties of most materials, weakening and making them fragile: discover our processing auxiliaries and cleaning products for cleansing 3D prints
• light and thermal postcuring
• wavelength, power, dry or by dipping, with or without O2, postcuring time and temperature affect the degree of cure, the residual uncured monomer content, biocompatibility and safety 
• a too short postcuring can decrease biocompatibility and safety
• an excessive postcuring cycle causes yellowing and brittleness 
• others