Poloh Calculator

Polygon Based Calculator

This calculator can be used add, subtract, multiply and divide small numbers. The calculator works by rotating 11 sided polygons to display digits [0-9 and a blank space].

Step One: Print the file: Poloh-Calculator-Case.stl with the medium resolution setting.

Step Two: Print the file: Polygons and Bars.stl with the high resolution setting.

Step Three: Make sure the polygons are smooth to ensure that they don't get stuck when rotating by removing any residue.

Step Five: Use a black [or any other colour you like] marking pen to write down the digits on 25 polygons [numbers 0-9 and leave an empty space].

Use another colour to mark 9 polygons, 5 of these should have the numbers 0-9 and an empty space and the reaming 4 should have the addition, subtract, multiply, divide and equals symbols on them.

Step Six: Slide 6 polygons into each of the 6 bars and close the case.

Step Seven: Use the pen™ to rotate the polygons [if your finger tips are too big]. I found that an object with a metal tip [like a precision screwdriver] works very well in rotating the polygons,

IMPORTANT: Make sure the holes in the polygons are as perfectly circular as possible, this will ensure that the polygons stay in the desired position and don'™t get displased from their position. This also applies to the bars where the polygons will be slid onto.

Optional: The calculator's size can be increased by adjusting the scale of the .stl files. One side of the polygon is 2.4mm x 5mm, increasing the scale will increase the surface area. This will allow for larger and clearer numbers.