Scriber
A scriber (from the Latin scribere "to write" ) or labeling device is a technical aid to quickly and efficiently label technical drawings or construction plans . An ink pen is screwed into a corresponding holder on the scriber. Letters and numbers can then be written on the drawing surface using a keyboard. The scriber replaces the tedious writing of a drawing by hand or with a stencil . As technical drawings are being displaced by hand using modern CAD processes, such devices are only built in small numbers.
Functionality and application
The scriber is an approx. 40 cm × 15 cm × 5 cm technical aid for writing on drawings. A QWERTY keyboard is attached to the top of the Scribers . A slot for an ink pen protrudes from a slot on the back of the device . Most scribers have a small display in order to better control the entries.
If the user now taps a key, the recording with the ink pen moves in the form of the typed letter or number and leaves the desired character on the drawing. Font size and size as well as the position can be variably adjusted. The labeling area corresponds almost to the length of the device. The device is screwed to the drawing head of the drawing machine with an adapter.
The scriber is operated electrically and is therefore a mechanical, CNC-controlled labeling device. For Scriber there are expansion cards with symbol libraries for electronics, electrical engineering, mechanical engineering and architecture. Some scribers can be connected to the PC, so you can create your own symbol libraries and use them to label plans. In order to be independent of the power supply via cable, there is a battery pack for some models .
history
In 1980, the Rotring company (now Sanford) developed and sold their first scriber as a computer-controlled drawing marking machine NC scriber. In the years that followed, other companies adopted the concept. The manufacturers of the devices were among others: Rotring, Mutoh and Bigraph.
use
In many design and drawing offices, writing with a scriber was considered to make work a lot easier, and it soon became very popular, as writing by hand is very laborious and time-consuming. The scriber is still used in many architecture offices today, as many plans are still drawn by hand in the field of architecture.
There are special scribers with appropriate pens for labeling cable clips. The EK-Team GmbH , which in 1996 emerged from the Rotringgruppe, builds these devices today in numbers.
technology
Under the Scribers keyboard there is a circuit board with the interpreter for the keyboard entries (similar to the computer keyboard ) and the control unit for small stepper motors . These receive a step signal and usually move the writing arm via elastic bands. here two synchronous movements are carried out in the x and y directions. The movement in the z-direction, i.e. the movement on the drawing medium, takes place via a simple control magnet. A limited number of predefined symbols can be stored in a non-volatile memory and called up again when required. In order to save weight, the transformer for the required direct current is outsourced in the form of an adapter.
example
To write the word WIKIPEDIA on a sheet of paper, the scriber is placed on the paper in the desired direction and a pen is screwed into the holder on the scriber. If you now type WIKIPEDIA on the keyboard, the writing arm is moved after entering the Enter key and the writing is generated by the pen.