Cutting grooves to add flexibility allows for making curved shapes. The fibrous nature of the material allows the remaining surface to act as a durable yet flexible hinge. Groove depth, width and spacing will determine the level of flexibility in the board and these parameters should be exploited to match the desired curvature.
For simple curvatures, cutting groves on a table saw with a 3.2 mm wide blade is recommended. Cutting the board down to 1.5 mm thickness in each groove, combined with narrow spacing of 2.5 mm between cuts, will create a very flexible structure. For more subtle curvature, cutting down to 1 mm thickness in each groove with spacing of 7 mm between cuts is an option.
When curving Solid Textile Board, please be aware that the colour can change on the surface opposite the kerfing due to straining of surface fibres. The right balance between the dimensions of the grooves and the desired curvature is key to avoid this. Generally, less spacing between grooves and a groove depth leaving more than 1 mm of material will result in a more even surface. Customers are advised to make their own experiments to establish the best settings according to the requirements of the project.
A variation of kerf cuttings in both one and two directions