- 10 -
Purpose :
Most
cabinet on the market provide just two set of work co-ordinates -
. It was
DRO
ABS/INC
found that
was inadequate and inconvenient to use, and, particularly in the case of
ABS/INC
complex machining or repetitive work, which needed more than just two sets of working
co-ordinates.
operation has the following shortfalls :
ABS / INC
- In much machining work, the work-piece machining dimensions are derived from more than
two datums, therefore, the operator has to switch between
and
to set up the
ABS
INC
machining datums time after time. This process is very time consuming and prone to error.
- In the case of batch machining of repetitive work, the operator has to set up and calculate
all the machining positions time after time.
RD-11M
199
sdm
ABS/INC SdM
provides a
subdatum (
) memory to cope with the shortfalls of
.
function does not just simply provide
sets of
co-ordinates, it is specially designed to provide much
199
INC
more convenient features for the operator to cope with repetitive work.
The difference between
and
is as follows:.
INC
SdM
1.
is independent of
and will not follow any change in
zero point. All
INC
ABS
ABS
sdm
co-ordinates are relative to the
coordinates, so, all
positions will move together
ABS
SDM
when the
zero position changes.
ABS
2. All
relative distance data to
can be entered directly into
memory using the
SdM
ABS
RD-11M
keypad. No need for any additional calculations.
SdM application in a work piece that has more
that one datum.
Operator can store all the work subdatums in
RD-11M's memory as per follows.
(
)
sdm 2
Subdatum 2
(
)
ABS
Work piece
main datum
(
)
sdm 1
Subdatum 1
(
)
sdm 4
Subdatum 4
(
)
sdm 3
Subdatum 3
Operator then can
switch between
the subdatums directly
by pressing key
No need to refer back
to ABS coordinate and
set up the subdatums
from their relative
distance from ABS point
(
)
sdm 3
point
3
(
)
ABS
Work Piece Datum (0.000)
(
)
sdm 2
point
2
(
)
sdm 4
point
4
(
)
sdm 1
point
1
SdM application on the repetitive batch machining of
parts
Because all sdm subdatums (0.000) are relative to
ABS zero, so, for any repeative work, the
operator just needs to set up the first work piece zero
at ABS and store the machining position in subdatum
zero.
For anymore repeative parts, just set up the 2nd, 3rd..
work piece zero at ABS, then all the machining
positions will reappear
Press Up/Down
key to go to
machining points
move the machine
to display = 0.000,
then machining
location reached
R
esson
Technologies
On
Off
RD-11M
R
esson
Technologies
ent
R
I
O
0.000
0.000
Sdm 2
On
Off
RD-11M
R
esson
Technologies
ent
R
I
O
Sdm 2
or
or
Summary of Contents for RD-11M
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