For the TactiPad triangle we decided on 20 units spread over 17.32 centimeters, which is rounded 0.87 centimeter per unit. The size of the units used on the slanted side is arbitrary since, unfortunately, there is no standard for this. Measurement indication along the three sidesįor the two sides connecting at the 90 degree corner, the measurement indications are in centimeters. The 30 degrees corner is pointing to the left when the surface with the tactile measurement indications is facing up and the 90 degree angle is at the bottom right. The length for the other two sides can then be calculated as 15/sqr(3) multiplied by 0.5 or 1 respectively (8.66 and 17.3 centimeters). For practical reasons, the longest right side (sqr(3)) of the triangle tool is set to 15 centimeters (about 6 inches). As a given, the three sides always have these proportional lengths. When the three corners of the triangle are set 30, 60 and 90 degrees respectively, it is known as a ‘1/2/sqr(3) triangle’. Dimensions of the 30/60/90 degrees TactiPad triangle tool I Product specifications Product nameĪpart from the mathematical name of the shape, from now on, ‘triangle’ is referring to Thinkable’s TactiPad Triangle Tool as well. Section four gives a few hints for best practice. Section three deals with the creation of a coordinate system on the TactiPad drawing board and why an angle of 30 degrees for the X axis is most efficient for drawing 3D shapes as a tactile diagram. The firsts of these methods includes a step-by-step description on how to draw a cube using the triangle tool and the TactiPad. Section two describes our use of two different methods to decide on the units of measurement for the slanted side of the TactiPad triangle tool. The first section the physical and tactile product details. You will also find information on some of the aspects of the creation of ‘3D space’ using the TactiPad. Being interested to improve/extend the Thinkable products we have taken up this challenge.Īfter describing the details of the tool, we present some of the decisions we made during the design process. Creating Graphs with TactileView Software TutorialĪ math teacher came to us with the question: ‘Can you create a 30/60/90 degree version of a triangle tool for the TactiPad’? He wants his students to draw 3D shapes such as cubes, prisms and pyramids.Editing Challenging Images with TactileView Tutorial.Creating Tactile Design Based on Imported Image with TactileView Tutorial.DogSim Guide Dog Simulator – Assembly instructions.RouteTactile Tutorial: Map of Dutch Air Traffic Control.TactiPad Tutorial: Map of Dutch Air Traffic Control.TactiPad Drawing Board Manual and accessories.MDA Tutorial: Map of Dutch Air Traffic Control. TactileView Tutorial: Editing challenging images.TactileView Tutorial: Design based on imported image.
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