3DFashion - Tackiness

Tackiness–Elements Stick or 3D Print Feels Sticky

Tackiness on a 3D print

Tackiness of 3D print with thin wall may stick together when pressing on the print or may feel sticky to the touch.

Possible Causes and Solutions

Printing with Flexible Printing Materials

Printing with flexible printing material can cause tackiness on 3D prints.

Solution 1: Print the Fabric Analyzer and follow instructions as described in the relevant best practice guide Printing on Fabric with J850 TechStyle - EN PolyJet Best Practice

Tackiness on a blue 3D print

Solution 2: In J850 TechStyle printers, you can prevent tackiness by using the Flex Touch coating option in GrabCAD Print. Selecting the Full coating option applies the coating layer to the top surface and in between the elements of the print.

Flex touch coating option in GrabCAD software

Note: This might cause fabric wetting for segmented and dense 3D prints. To reduce the fabric wetting, use a segmented geometry with many items that are close together and apply the coating only to the top surface of the 3D print by selecting the Flex Touch Smart coating option in GrabCAD Print.

Solution 3: Increase the wall sizes of the elements of the 3D print. This can reduce the effect of the walls sticking together when pressed.

Preventive Measures: Use the Fabric Analyzer, Tackiness test, with the selected fabric and flexible printing material to check stickiness of various geometries after applying Flex Touch coating. This enables you to feel the tackiness of a 3D print and view the quality of the 3D print as a whole. After pressing on a 3D print, certain areas of the print may be affected.