percentage calculations (zip-Datei)

This is a 3D print file for a tactile percentage triangle that helps learners understand and apply formulas for percentage calculations. The model includes letters and Braille symbols, and the triangle in the centre indicates whether values need to be multiplied or divided. It supports accessible mathematics learning and was designed and tested as part of the 3D4VIP project. Printing instructions and tips: Optimal print settings depend on the slicer used; the model was primarily tested with Ultimaker Cura. Helpful settings include Adaptive Layer Height to speed up printing in less detailed areas and Make Printable to reduce the need for supports by beveling overhangs. Using a brim improves adhesion to the build plate and can be removed easily after printing. The initial bottom layer should consist of two to three layers to prevent warping, while two to three wall layers help save material. An infill of up to 15% is recommended, together with six to seven top layers for stability. If support structures are used, additional adjustments to the settings may be necessary.