The height meter is not only an integral part of the children's clinic, where measuring and recording height and weight is a mandatory procedure before each vaccination or Mantoux reaction. In any apartment where there are children, you will definitely find marks on the door, wall or closet, next to which the dates are written. It is assumed that the child, when he grows up, will take a tape measure himself and measure how tall he was and when. Then they often make repairs, and this information is lost.
And it’s a completely different matter if there is a height meter at home. And it’s not such a medical one, with a slider that certainly rests in the back of the head (accuracy is more important than comfort for a doctor), but warm, homely. Dates and growth values can be entered in a beautifully designed magazine or a table next to it. How to design it is a separate topic, it can be, for example, a well-polished sheet of plywood, on which the lines forming the cells of the table are applied in advance by a laser.
Well, the stadiometer itself can be performed on the advice of the author of Instructables under the nickname TheDIYPlan. The master takes a board with a rectangular section of 25x150 mm and saws it to a length equal to the height of the door frame. Install the height meter when it is ready, it should be on the side of the door with which it is pushed. Well, or even away from the door. But the installation is still far away. While the master is polishing the board from all sides, including the ends:
Applying paper towels instead of a brush, the master primers the board. The primer is applied quickly, so after 10 minutes the master applies paint on top of it. When applying both soil and paint, the master follows the instructions given on the cans with them.
But then the paint dries. The master begins to put on the board with a pencil the division on the tape measure every inch. To make them perpendicular, with the subsequent stroke of their marker, he uses a square. Since the stadiometer will be inch (and it’s clear why it’s clear from the KDPV outlet), the wizard makes three different length divisions: every 12 inches, that is, every foot - two inches long, every three inches - one and a half inches the rest are one inch long. In the manufacture of a metric stadiometer, you can apply divisions every 10 mm and make them 20 mm long every 100 mm, 15 mm long every 50 mm, and all the rest - 10 mm long.
On top of the divisions, the master applies a layer of matt polyurethane varnish. Then it dries for several hours, polished with sandpaper with a grit of 300 grit or more, removes the resulting dust, applies a second coat of the same varnish and dries again.
The wizard sticks self-adhesive numbers next to the divisions corresponding to feet. In them graduation also turns out. If there are no such stickers, you can apply the numbers with a marker before coating the board with varnish. On a metric stadiometer, numbers can be applied every 100 mm, but graduation is done not in these units, but in centimeters, since even the most skilled craftsmen, accustomed to using millimeters in general wherever possible, will still switch to centimeters when measuring human height.
The master makes two such stadiometers, one of which fastens over the baseboard. So that he measures the height correctly, the master shortens it from below to a height equal to the height of the baseboard.
Let me remind you once again that when installing a height meter near the door frame, you should choose the side of the door from which it is pushed.