The author of Instructables under the nickname landimatteo decided to make a very wide and multi-functional slide rule. Let's see what he did.
Here the wizard finds individual files with scales that can be combined in a makeshift ruler as desired. This allows you to get a ruler of different widths, depending on the number of scales. The master draws up a ruler with the set and scale he needs. He gets a PDF file that he uploads here.
Cut strips:
And prints the scale:
Glue the electrical tape on the movable bar so that it moves tight:
Using double-sided tape, glues the structure, leaving the middle bar movable, trying on a printout:
Sticks a printout:
It cuts it into strips, and the movable bar regains mobility again:
It makes the upper part of the engine, draws a vertical strip on it:
And then it completely collects the engine from plexiglass and two coins:
The line is ready:
Despite the considerable width, using the ruler is quite convenient. It is also advisable to make some kind of case for its storage and carrying.