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Writing Traversing Programs
Variants in tool
offset
Tool offset is made up of two correction-value components:
Tool length offset
The tool length offset is the actual tool length from tool zero to the tool
tip.
Tool length wear value
The tool length wear value allows the change in tool length due to wear to
be compensated in two ways:
Absolutely:
by specifying a fixed wear value
Additively:
by adding an “offset value” to the current tool length wear
value contents.
Tool new
Tool wear a
ÉÉ
Tool zero
DL
Fig. 10-4
Tool wear b
ÉÉ
ÉÉ
ÉÉ
DVabs
DVadd DV
Tool offset
Notes to the figure:
The tool offset thus consists of the tool length compensation and the tool
length wear value:
D = DL – D V
DV = DVabs + DVadd
D
– Tool compensation
DL
– Tool length compensation (positive or negative)
DV
– Tool length wear value (positive or negative)
DVabs – Wear, absolute (positive or negative)
DVadd – Wear, additive (positive or negative)
FM 353 Stepper Drive Positioning Module
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