Pre-printing Tips for Flexible PolyJet Materials
PolyJet currently offers a number of flexible materials: Tango and Agilus30 families. This tutorial will provide some tips to optimize the performance of these materials, using the various settings in GrabCAD Print.
Step 1: About the Materials
Agilus30 and Tango are rubber-like materials that simulate the look, feel, and function of flexible products. They offer a range of shore values, ranging from that of rubber bands to tire treads to shoe heels. They are good for printing products with soft-touch coatings, nonslip surfaces, rubber surrounds, and overmolding. Such as grips, pulls, handles, buttons, cables, seals, gaskets, packaging, and footwear.
They are PolyJet Photopolymers with superior tear-resistance, capable of withstanding repeated flexing and bending, making them great materials for rapid prototyping and design validation.
Agilus30 is stronger than Tango, with 200% greater tear resistance, 250% times greater tensile strength, and roughly 250% better elongation at break. It also offers an improved look and feel, with a smoother surface and a wider range of colors that includes clear, white, and black.
Step 2: Part Orientation Tips
- Position thin and delicate parts face up. This improves resistance to tear.
- Run shorter jobs to increase adherence to the tray
- For parts with high aspect ratio (X:Y), position the longer edge along the X-axis. This reduces internal stresses that cause the parts to curve upwards and detach from the tray.
- If possible, position vertical walls parallel to the X-axis. This reduces the impact of the roller on the walls.
- To avoid curling, run shorter print jobs to increase adherence to build tray.
- Tango is prone to tearing along layer lines so orientate the parts on the build tray so that regions under tension will be printed in the X, Y direction rather than Z.
Step 3: Grid Style Tips
- The Heavy grid style is recommended. It minimizes the impact of the roller on thin walls and reduces the possibility of the part curling, shrinking, or deforming during printing.
- Lite is easier to remove. And there is less chance of thin sections and fine features being damaged or torn during support removal.
- Prefer a Lite grid for hollow and delicate parts.
Step 4: Surface Finish Tips
- Prefer a glossy surface finish for delicate and thin parts. This increases tear resistance.
- To avoid tearing, reduce stickiness, and improve part durability over time, consider coating the part with a flexible varnish or coating.
Step 5: Tray Preparation Tips
- Print semi-full trays to avoid roller waste leakage.
Have any questions, comments, or tips of your own to contribute? Feel free to comment below.