22 Copyright Silca 2004
IDEA Operating Manual - English
- With square stemmed keys the program applies a special bit trimming process which does not remove the
edges of the stem. The key is positioned on the horizontal axis at a distance of 2 mm from the end of the
stem; the cutting tool then enters tangentially on the vertical side of the stem so that any portion of the bit
which exceeds the original measurement can be removed.
Fig. 25
- The speed ratio is selected from a scale of diameters sub-divided proportionally between a minimum
diameter of 3.6 mm and a maximum diameter of 7 mm; in effect, the thicker the key, the slower the
advancing speed of the cutting tool.
- The advancing speed of the tool over the bit (not to be confused with the speed of cutting, or tool operation,
which depends on whether the material is brass or steel) is automatically adopted by the program
according to the diameter of the stem read from the original key.
Fig. 26
It is now very important to distinguish the type of key to be copied.
Stop 1
min. 2 mm
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