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Illustrative Bridgeport-style knee mill (not an AMI installation)

ACU-RITE DRO102 2-Axis Knee Mill DRO Package

Scale size

The complete digital readout package for your knee mill. This package replaces the dials on your milling machine with the ACU-RITE DRO102 readout and its 7-inch color display, showing both axes at once so you can position accurately without counting dial revolutions.

Key specifications

Readout ACU-RITE DRO102 - 7-inch TFT color display, 2 axes, splash-proof keypad
Scales Two SENC 150 precision glass scales
Resolution 0.5 / 1 / 5 micron options (0.00002 / 0.00004 / 0.0002 inch)
Accuracy ±3 or ±5 micron per 1000 mm
Measuring lengths 50 - 3075 mm (2 - 120 inch)
Scale rating IP53 protected

Which machines it fits
Knee mills and similar 2-axis milling machines (Bridgeport-type mills). One scale mounts along the X axis (table travel, left-right) and one along the Y axis (saddle travel, in-out). Choose the kit size that matches your table size and travel; scale lengths are matched to your machine at order.

What is in the kit

  • ACU-RITE DRO102 digital readout with 7-inch color display
  • Two SENC 150 precision glass scales sized to your machine travel (.0002 inch / 5 micron resolution)
  • Readout mounting arm, scale brackets and mounting hardware
  • All connection cables

What the DRO102 does for you

  • Straightforward 2-axis positioning
  • Absolute and incremental display
  • USB 2.0

DRO102 or DRO203? The DRO102 covers straightforward 2-axis positioning with the same precision scales and 7-inch color display. The DRO203 adds bolt-hole pattern and centerline calculations, tool offsets and Dynamic Zoom.

Select your table/travel size above. Pricing and lead times on request - call 1-888-354-2525.

How to measure your machine for scales

01

Move the axis fully in one direction, mark the table or saddle, then move it fully the other way. Measure between the marks - that distance is your travel.

02

On a knee mill, X is the table travel left-to-right and Y is the saddle travel in-and-out. Measure both axes.

03

Choose the kit whose scale travel is the same as or longer than your measured travel. We match scale lengths to your machine at order.

04

Allow about 3.5 inches beyond the travel for the scale body (SENC 150 adds a 1.75 inch overrun at each end), plus clearance for the reading head and cable.

Scales 24 inches and longer mount with a mid-point support; 66 inches and longer include a back-up spar. Not sure? Send us your machine model and table size and we will match the kit - 1-888-354-2525.