20 Copyright Silca 2004
IDEA Operating Manual - English
5.3 [0] C
OPY
FROM
ORIGINAL
R
EADING
PROCESS
The laser reader is used to find the measurements and cuts on original keys so that they can be copied onto
the keyblanks.
ATTENTION: before undergoing laser reading, the original key must always be cleaned to remove any
accumulated impurities at the base of the negative teeth or frazed parts on the key profile (use the
teflon brush);
- ensure that the positive teeth are not so bent as to obstruct the entry of the beam into the
adjacent spaces;
- with all keys, ensure that the stem is not bent between the tip held by the fixed clamp (A) and the
part of the stem held in the mobile clamp (B);
- position the key so that the transversal axis of the bit/s is as horizontal as possible.
The reading process is started when the program has been selected from the display and the key has been
placed in position on the clamps according to the instructions in the special diagrams for each type of key
(for example: fig. 28, fig. 30, fig. 32, ...).
Excursion during the reading process is limited by the lower jaw of the mobile clamp (B) and the transversal
run is determined both by the type of key and the size of the bit.
The laser reader is programmed to circumscribe the bit/s on the key starting from the contact on the lower
jaw of the mobile clamp (B), to read the diameter of the part of the stem between the mobile clamp (B) and
the bit and to recognise the type of key and its correct positioning according to the selected program. It reads
the first side of the bit following the cuts up to a limit of 0.5 mm from Stop 0 (up against on the fixed clamp
A) then goes on the second side to follow the second bit, or if the key has only one bit, the stem of the key.
C
UTTING
PROCESS
- Cutting begins on the bit on the left-hand side of the stem starting from the tip and going towards the head.
- The second bit, the one on the right, is cut in reverse, i.e. from the head to the tip.
Fig. 20
- The cutting path is automatically calculated by the program on the basis of the reading from the original
key. The thicknesses of all the teeth (positive and negative) are compared with the thickness of the cutting
tool stored in the memory (can be read on the machine display by means of the “F2” function). If the
thickness of any of the teeth is less than that of the cutting tool (standard cutting tool, 1.25 mm), the
program will indicate the maximum thickness needed to make an identical copy of the key.
If all the teeth are thicker than the cutting tool, the program will indicate the difference and the number of
times the cutting tool needs to pass to reproduce the cuts correctly.
Fig. 21
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