A Digital Readout (DRO) makes your mill or lathe more accurate and easier to use by showing precise position readings for each axis. Choosing the right DRO is simple if you follow these steps:

1. Understand How Our DROs Fit

Our DRO systems are designed as universal fit kits, which means they can work on many different machines.
However, installation may require some customization, such as:

• Making or modifying mounting brackets
• Drilling and tapping holes for proper attachment

This is normal and ensures the DRO fits securely and works correctly.

2. Measure Your Machine’s Travel

Start by measuring the maximum travel for each axis on your machine. These measurements determine the scale lengths you need.

• For Mills:
  Measure the travel for:
  • X-axis (longitudinal): Left to right movement of the table
  • Y-axis (cross): Front to back movement
  • Z-axis (vertical): Up and down movement of the head or knee
• For Lathes:
  Measure the travel for:
  • Z-axis (carriage): Movement along the bed
  • X-axis (cross slide): Movement toward and away from the spindle

3. Choose the Right Kit

Once you have your measurements:

• Select a DRO kit that matches those dimensions as closely as possible
• Or assemble a custom kit using scales that fit your machine’s travel

Tip: Always choose scales slightly longer than your machine’s travel for full coverage.

4. Other Considerations

• Number of Axes:
  Mills usually need 3-axis DROs (X, Y, Z).
  Lathes typically use 2-axis DROs (X and Z).
• Display Features:
  Look for features like metric/inch conversion, preset functions, and tool offsets if you need advanced capabilities.

Key Takeaway

Measure first, then match your DRO kit to your machine’s travel. Our universal kits make it easy to upgrade your mill or lathe for better accuracy and efficiency.