Taig
Micro Mill DRO X-axis Scale
Last updated on
Tuesday, September 19, 2023 04:18:19 PM
Mountain US Time Zone
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Bracket, Scale Mount, Cable Route
This DRO
modification has been removed for the
CNC conversion
but the information has been
retained for reference.
Bracket
Drilled & tapped two, 6-32 holes for cap head screws
at the
left & right front corners
of the table
to mount the X-axis scale
bracket.
Milled down
1-1/2" x 1-1/2" x 1/8" aluminum L-channel for the bracket.
Needed to retain the table lock feature.
Shortened the hard
stop 3/8" dowel pin &
tapped it to accept a
10-32 center transfer.
The pin corner is smoothly rounded to facilitate assembly.
Bottom adapter plate for the X-axis scale.
Note the transfer
scribe line & set-screw hole.
The hole was
reamed to
3/8".
Scale Mount
The unit is bolted
together using self-aligning, spherical
washer (pairs) between the scale & L-channel bracket.
The L-channel serves as the scale mount & protects it from impact, fluid & debris.
I have installed rubber washers on all the scale mounts
to
allow floating to reduce strain on the transducers.
The
RF-25 mill's free-floating
Z-axis design works
so well that now all of my mill & lathe scales
are attached at only one end while the other end
remains captured but loosened
to allow floating.
This approach greatly reduces minor out of
alignment induced stress on the
transducer. This
design also helps to reduce DRO jitter as does a clean,
deburred transducer
with NR capacitors.
Cable Route
The hot-glued signal cable exits to
the left,
is spiral wrapped & is held down by a
3/8" plastic clamp fastened down by the left,
way cover cap-head screw.
Bracket, Scale Mount, Cable Route