ACU-RITE 300S READOUTS - Manual (Page 38)

24 I
I - 3 Milling Specific Oper
ations
Tool Radius Compensation feature
This allows you to enter workpiece dimensions directly from the
drawing. R represents the tool radius, and examples of the R values
are shown in this figure. The displayed distance to go is then
automatically lengthened R+, or shortened R- by the value of the tool
radius. For more information see "Presets" on page 33.
The length offset may be entered as a known value or the 300S may
determine the offset automatically. The tool length is the difference in
length
ΔL between the tool and the reference tool. The length
difference is indicated with the “
Δ”symbol. The reference tool is
indicated by T1.
Sign for the length difference
ΔL
If the tool is longer than the reference tool:
ΔL > 0 (+).
If the tool is shorter than the reference tool:
ΔL < 0 (–).
The length offset may be entered as a known value, or the 300S may
determine the offset automatically. To have the 300S determine a
tool’s length offset involves touching the tip of each tool to a common
reference surface. This allows the 300S to determine the difference
between the length of each tool.
Move the tool until it’s tip is touching the reference surface. Press the
TEACH LENGTH soft key. The 300S will calculate an offset relative to
this surface. Repeat the procedure for each additional tool using the
same reference surface.
Only the tools set using the same reference surface may be
changed without having to reset the datum.