RF-25 Mill Y-Axis Scale
RF-25 Mill DRO & X Z Axes
Scales. RF-25 Mill
Tachometer & SFM
9x20 Lathe DRO X
& Z1 Axis Scale.
9x20 Lathe Tachometer & SFM
Taig Mill
Taig Mill DRO &
X Y
Z Axes Scales.
Taig CNC Mill DRO
Taig
Mill Tachometer & SFM Taig Micro Lathe DRO
Tapped
50% thread NC ¼-20 mounting holes
at end of table.
It is difficult to cut fine threads in cast iron due to crumbling.
¼" thick upper bracket must
clear lead-screw bearing bracket housing.
Semi-circular relief is stronger than a rectangular alternative.
L-channel bracket with scale mounting bolts. L-channel
bracket must clear power-feed motor.
The L-channel serves as the scale mount & protects it from impact, fluid & debris.
Six inch vertical-style scale mounted. All sharp corners have
since been rounded.
I have installed rubber washers on all the scale mounts
to
allow a little floating to reduce the strain on the transducers.
This is the first scale I ordered for the Y-axis. The catalog picture
& description
did not match what I received.
This 6" horizontal-style was smaller &
does not have as good of a
receptacle (for me) as the vertical style.
If you have space limitations and/or are tacking-on wires,
you may want this style.
Instead,
I used this style on the Taig DRO.
The
better receptacle (for my needs) is shown on the
Z-axis scale page.
I solder a 100µF 10v tantalum
capacitor across the battery leads of the scale.
Lower bracket mounted using
¼-20 bolts. This mill base side is 5º.
Tapped holes are perpendicular to the mill base surface.
Lower bracket detail.
Bolt
clearance holes perpendicular to both front & back 5º surfaces.
The rear holes are horizontally centered on the bracket.
¼" thick connecting bracket uses M3-.5 upper bolts &
8-32 lower bolts.
This mount
protects scale's front (which is not needed) &
places the SPC output on the bottom, back, left.
Only hardened SS scale surfaces are exposed.
This style scale has a good SPC plug receptacle.
Cable is protected with spiral wrap & has nylon ties for
strain relief.
X-axis & Y-axis cables are (directly) routed under the mill inside the stand
allowing me to use the standard 6 ft. SPC cables from
LMS.
All cable plugs are held in place with a spot of hot glue.
RF-25 Mill DRO & X Z Axes Scales. RF-25 Mill Tachometer & SFM