SPACE 2000 EVO/N (T and M versions) OPERATION MANUAL
24
NOT LINEAR CORRECTION (10 POINTS)
The machining errors which can be originated by geometrical defects of the machine tool
due to wear or to a lack of linearity of the guides, coupling clearances between the
Carriage and the guide, badly distributed weights, and so on may even be considerable.
they can be offset by means of the linear correction function, The correction factor
CF
can
be calculated by the operator using the following relationship:
If the errors are of the linear type, but proportional only for some spaces to the value of the
displacement carried out, they can be offset by means of the not linear correction function.
The different correction factors
CF
needed, are automatically calculated basing on the
positions which define the different segments (
up to 10 segments
), settled by the
operator.
Let us suppose that a machining operation has been carried out but we found out a
machining positive error working between position 500mm and 900mm and a negative
error working between position 950mm to 1350mm. That means our machine shows a
defect on two segments, as it is showed below:
segment
1) mm 400.20
with an error of 200
µ
m
segment
3) mm 399.88
with an error of 120
µ
m
in segment
1
we have
400.20 : 400.00 = 1.0005
(CF)
in segment
3
we have
399.88 : 400.00 = 0.9997
(CF)
in segments
0, 2, 4
we have
= 1.0000
(CF)
