A  high stiffness, DC motor driven, air bearing grinding spindle mounted to an angle bracket located on the Z-axis enables grinding of glass optics or steel mold inserts.  The grinding spindle can accommodate wheel sizes up to 100mm diameter and can run at 15,000 rpm.The grinding spindle is located within a local enclosure.  The workpiece fits through a sliding guard.  With grinding, a flood coolant is required which is different than the spray/mist used with diamond turning. This coolant delivery system is specifically designed to be used with the grinding process.

An air driver turbine spindle is mounted to the Z-table next to other tool holders. This allows marking, grooving, or milling of features into the work piece. This option includes work spindle modifications to enalbe C-axis positioning of the part.

Manual or step motor controlled adjustable sign plate designed for linear grooving. This system is located under the workholding spindle which enables depth control over the working substrate.

This system includes an air bearing LVDT electronic displacement gage, mount for the gage, amplifier electronics, and software that runs on the machine controller. The gage is used to scan the work piece by using the machine axes of X and Z, and provides a measurement of the contour of the part. The error profile is subtracted from the part program, and following machine passes can be performed to create parts with the repeatable errors removed. Ultracomp mounts can be provided for use with either diamond turning or vertical spindle axis grinding.

A system designed specifically for the production of deep sag grinding. Used with the rotary B-axis, the system includes a motorized spindle, coolant enclosure, wheel dressing nib and mounts for the spindle either horizontal or 45º downhill on the rotary B-axis. A flood coolant tank and pump system may be required depending on the application.

The Precitech Fast Tool Servo ( FTS ) is used for rapid manufacture of small departure freeform components on an Ultra Precision Diamond Turning Lathe. A FTS includes a short stroke actuator which holds a diamond tool and mounts onto the Z-slide of a lathe. The actuator is driven by either a Piezo electric stack or linear motor and uses closed loop position feedback. With the use of a dedicated controller, the tool position is calculated and commanded in sequence with the rotational position of the work spindle and slide. While the machine tool is moving X and Z through a part program, the Fast Tool Servo receives input of the slide and spindle positions and calculates (real time, on the fly) the tool position for the tool. This tool position is then commanded to the FTS controller, which closes the servo loop and moves the tool appropriately.

The Precitech Slow Tool Servo ( STS) is used for rapid manufacture of large departure freeform components on an Ultra Precision Diamond Turning Lathe. The Slow Tool Servo relies on the machine tool’s slide travels to actuate the tool holder synchronous with the rotation of the spindle and cross slide thus creating a system with the ability to perform large departures at slower speeds. Different from the FTS, the tool position of STS is calculated and commanded as three coordinated axis of motion on the machine controller. The Slow Tool Servo option includes the spindle C axis outlined above in combination with special tuning of the Z-slide and special operation software.