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Scale Setup
One of the easiest ways to set up an "X" scale on
a milling machine is to clamp two parallels to the
flat table surface that the table travels on and set
the scale on the parallels.
To set up the "X" axis scale:
1.
Carefully drill and tap the holes (Figure 15) to
match the provided screws.
Figure 15. Drilling the screw holes.
2.
Mount the cover over the scale and drill and
tap holes to secure it to the table, making
sure that there is 3mm of clearance between
the cover and the scale.
3.
Mount the scale on the backing plate using
the pre-drilled holes (Figure 16), checking
that the scale is parallel with the machine
slide with a dial indicator.
Figure 16. Mounting scale on backing plate.
Digital Readout System
4.
When the scale is mounted, fix the reader
head to the saddle. If necessary, shim the
head to ensure that it is parallel and in-line
with the scales (Figure 17). NOTE: The blue
packing between the reader head and scale
allows for the correct clearance and holds the
reader head parallel to the scale.
Figure 17. Completing "X" axis scale mounting.
To set up the "Y" axis scale:
1.
If the surface is not machined, mount the
backing plate and use the set screws to
adjust the backing plate. Check with a dial
indicator (Figure 18), and adjust the backing
plate until the scale is square and perpen-
dicular to the machine slides.
Figure 18. Aligning the backing plate with a dial
indicator.
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