Nanoform® 250 ultra grind

  • Overview +


    This revolutionary, flood coolant compatible 2 to 5-axes ultra precision freeform machine is designed for diamond turning and deterministic freeform milling and grinding for the most challenging applications. Common applications: glass grinding for aspheric glass lenses, mold inserts for molding lenses for glass pressing.

    The Nanoform® 250 ultra grind comes standard with Precitech’s UPx CNC machine control that provides a user friendly interface with features designed specifically for increased throughput. It is fast and easy to use and boasts an unprecedented 16 picometer feedback resolution an and industry leading operating system with 0.01 nanometer programming resolution. Sealed natural granite base provides exceptional long term stability. The Nanoform® 250 ultra grind incorporates an FEA optimized dual frame for the ultimate in environmental isolation. The linear motors are driven by true linear amplifiers.

    Precitech designs and builds their own hydrostatic oil bearing sideways with optimized stiffness and damping characteristics, liquid cooled slides for thermal stability and our own motorized air bearing spindles that allow us to maintain close control over quality and delivery.

    Diamond turning (2 or 3-axes) Direct lathing of optics and optical molds including freeform non-axi-symmetrical designs

    Tool Normal diamond turning (3 or 4-axes) Utilizing a contouring B-axis for freeform shapes in challenging materials, such as silicon.

    Precision grinding and milling (2 or 3-axes) Utilizing a 15,000 rpm spindle in the 45° or 90° orientation for cross-axis grinding for the direct machining of precision glass optics.

    Freeform grinding and milling (3 or 4-axes) Utilizing a 50,000 rpm spindle and a rotary B-axis for parallel grinding or 45° grinding for optical mold inserts, such as tungsten carbide for glass pressing applications.



  • Key Specifications +


    Slide Travel: 220 mm
    Max Feedrate: 4,000 mm/min
    Swing Capacity: 440mm / 220 mm over optional B-axis
    Spindle Speed: SP-150 = 7,000 rpm
    Grind Spindle Speed: Either 15,000 rpm or 50,000rpm
  • Technical Specifications +


    Machine Base and Control

    Description

    Machine Base

    Natural, high-stability, sealed granite, with flood coolant stainless steel enclosure

    Machine Type

    Ultra precision, two, three, four or five axes CNC contouring machine

    Vibration Isolation

    FEA optimized dual sub-frames for the ultimate in environmental isolation

    Control System

    UPx™ Control System with optional Adaptive Control Technology

    Operating System

    QNX real time operating system

    Programming Resolution

    0.01 nanometer linear/0.0000001° Rotary

    File Transfer Storage

    USB, CD, Ethernet,On-board data storage backup

    Performance (SPDT)

    Surface Roughness (Ra) < 1.5 nm, Form Accuracy (P-V) < 0.15 micron

    Performance (Grinding)

    Surface Roughness (Ra) < 5 nm, Form Accuracy (P-V) < 0.15 micron Tungsten carbide

    Linear hydrostatic slideways

    Description

    Type

    Hydrostatic oil bearing slideways with symmetrical linear motor replacement

    Material

    Durabar cast iron

    Travel

    X and Z: 220 mm (8.6 inch)

    Maximum Feedrate

    4,000 mm/minute (157 inch/minute)

    Drive system

    AC linear motor

    Motor location

    Located centrally and mounted vertically eliminating offset drive forces and minimizing thermal distortions

    Position feedback resolution

    16 picometers (0.016 nanometers)

    X-axis Straightness

    Horizontal: 0.2 micron (8 micro inch) full travel 0.05 micro/25 mm(2 micro inch)

    Z-axis Straightness

    Horizontal: 0.2 micron (8 micro inch) full travel 0.05 micro/25 mm(2 micro inch)

    Vertical Straightness

    0.375 micron (15 micro inch) full travel

    Workholding/Positioning Spindle

    High Performance SP150 Spindle

    Type

    Slot-type thrust bearing

    Material

    Steel shaft/Bronze journal

    Standard Swing Capacity

    250 mm (9.8 inch) diameter

    Motor

    Integral brushless motor

    Ultimate Load Capacity

    114 Kg (250 pounds) 50 mm (2 inch) out from spindle nose

    Axial Stiffness

    230 N/micron (1,314,000 pounds/inch)

    Radial Stiffness

    130 N/micron ( 743,600 pounds/inch)

    Motion Accuracy

    Axial/Radial 15 nm (0.6 micro inch)

    Thermal Control Option

    Liquid cooled chiller 0.1º C Accuracy

    C-axis Feedback Resolution

    0.010 arc-sec

    C-axis Postion Accuracy

    1 arc-sec

    C-axis Max Speed

    1,500 RPM

    Work Holding Spindle Max Speed

    7,000 RPM

    Rotary B-axis

    HydroRound Rotary B-axis

    Type

    Bi conical, self compensated, Oil hydrostatic bearing, DC brushless direct drive motor

    Material

    Stainless steel

    Tabletop Size

    330mm (13 inch)

    Standard Swing Capacity

    220 mn (8.75 inch) diameter over tabletop/440 mm otherwise

    Load Capacity

    225 Kg (500 pounds)

    Maximum Speed

    10 RPM continuous/50 RPM intermittent

    Motor Torque

    36 inch-pounds/4.0 N-m

    Position Feedback Resolution

    0.004 arch-sec

    Positoning Accuracy

    1 arc-sec

    Radial Error Motion

    0.10 µm (4 micro inch) @ 1 in. above table and can be improved with optional error mapping

    Coning Error

    1.0 nm/mm (1.0 micro inch/inch)

    Radial Stiffness

    225 N/micron (1,280,000 pounds/inch)

    Axial Stiffness

    600 N/micron (3,428,000 pounds/inch)

    Moment Stiffness

    3.4 N-m/micro radian (30 inch-pounds/micro radian) (144 inch-pounds/arc-sec)

    High Speed Milling/Grinding Spindle

    High Speed SP75FF Spindle

    High Speed PI 1so 2.25 Spindle

    Air Supply Pressure

    690 KPA (100 PSI)

    690 KPS (100 PSI)

    Air Consumption

    2.8 l/s (6.0 SCFM)

    0.9 l/s (2.0 SCFM)

    Radial Load Capacty

    20.5 KG (45 lbs)

    10 KG (20 lbs)

    Axial Stiffness

    70 N/micron (400,000 pounds/inch)

    69 N/micron (392,000 pounds/inch)

    Radial Stiffness

    22 N/micron (125,000 pounds/inch)

    23 N/micron (130,000 pounds/inch)

    Axial Error Motion

    < 0.05 micron (2 micro inch)

    < 0.05 micron (2 micro inch)

    Radial Error Motion

    < 0.05 micron (2 micro inch)

    < 0.05 micron (2 micro inch)

    Maximum Speed

    15,000 RPM

    50,000 RPM

    Facility Requirements

    Nanoform 250 ultra grind

    Power

    208 10% or 230 10% VAC-3.0 KVA 1 phase- 5-/60 Hz

    Air Supply

    Typical: 12 SCFM 2 100 PSIG

    Machine Footprint

    914 mm x 2120 mm x 1700 mm (36 inch x 83.5 inch x 67 inch)

  • Nanoform® 250 ultra grind – Standard Features +

    • Natural Granite Base – Nanoform 700 ultra
      • Natural granite base is lapped flat at Precitech and then sealed for life. The X-axis risers are also natural Granite. Granite provides excellent long term stability of the base of the machine so straightness and squarenesses will not be distorted over time.
    • Vibration Isolation System
      • Dual-chamber, self-leveling, passively damped vibration isolators are used in each corner of the machine. These provide excellent vibration isolation from floor vibrations.
    • Oil Hydrostatic Machine Slides
      • The machine slides are non-contact due to the use of oil hydrostatic bearings, non-contact linear motors and non-contact encoder feedback. In this manner there is zero stick-slip or friction, allowing motions of nanometer amplitude to be performed.
    • Air Bearing SP-150 Work Spindle
      • Air Bearing SP-150 Work Spindle The SP-150 is Precitech’s high accuracy work holding spindle, axial and radial error motions under 15 nanometers. The speed control is variable, closed loop, and bidirectional up to 7,000 RPM. This air bearing spindle is constructed using a hardened stainless steel shaft and bearing bronze bushings. These materials provide a durable spindle that provides many years of operation without maintenance or servicing. A DC brushless motor is mounted integral with the shaft, as is the velocity feedback encoder and C axis position encoder. Passages are provided for coolant circulation to maintain thermal stability both in the motor housing and the bearing housing. A passage is also provided for vacuum or air pressure to be supplied through the air bearing and to the face of the spindle for fixturing. Maximum speed with 8″ vacuum chuck is 5000 rpm.
    • Air Bearing HS-75 Work Spindle
      • The HS-75 is Precitech’s high speed work holding spindle, with axial error 20nm and radial error 25nm. The speed control is variable, closed loop, and bidirectional up to 18,000 RPM. This air bearing spindle is constructed using a hardened stainless steel shaft and bearing bronze bushings. These materials provide a durable spindle that provides many years of operation without maintenance or servicing. A DC brushless motor is mounted integral with the shaft, as is the velocity feedback encoder and C axis position encoder. Passages are provided for coolant circulation to maintain thermal stability both in the motor housing and the bearing housing. This spindle features a removable and cleanable pass through for vacuum or air pressure to be supplied to the face of the spindle for fixturing. Maximum speed of the HS75 with vacuum chuck is 10,000rpm.
    • Work Piece Balancing Software
      • In balancing mode, the machine controller examines the slide disturbance motions in synchronous timing with the spindle rotation. These motions are sinusoidal in shape and at the frequency of the spindle rotation so they are easy to recognize and filter out noise. The amplitude is correlated with a spindle position so that when the spindle is stopped the unbalance position can be identified to the operator. The operator is then guided to the proper location to install the correction weight.
    • UPx Machine Controller
      • This machine controller was developed by Precitech specifically for ultra precision lathe and machine tool applications. QNX 64 bit operating system with advanced application customization and MTF diagnostic to achieve cutting results.
    • Spray Mist System
      • A minimum quantity of lubricant is used to both cool and lubricate the diamond cutting process. The lubricant of choice is Odorless Mineral Spirits (OMS). This is stored in a reservoir on the machine where the operator can easily see if the level is getting low. The lubricant is supplied from the reservoir by gravity. When the spray mist is turned on by the machine controller (M code) then a pneumatic indicator turns green indicating that the spray mist is active. The operator has toggle valve controls for air and lubricant that must be turned on in order for the spray mist to function. Air pressure coming out of the nozzle pulls lubricant through a vacuum venturi effect and sprays the lubricant on the part. The operator has needle valve controls to adjust the air and lubricant (separately) flowing to the nozzle. When the spray mist is turned off, a valve in the lubricant line prevents lubricant from dripping out of the nozzle, and prevents lubricant from flowing back into the lines, which delays the start of spray mist when it is then turned on again.
    • Electrical Safety
      • Electric components and panels are designed with safety in mind. There are no places where a finger can touch dangerous live circuits. The machine has been examined by an outside review firm and has passed the requirements for CE safety certification.
    • Machine Enclosure – Nanoform 700 ultra
      • The machine is provided with a full upper enclosure for operator protection. The sliding operator door is locked when machine is in cycle to prevent operator exposure to potentially hazardous conditions inside. Interior lighting is provided using a sealed florescent lamp. Access door panels are provided on all sides of the machine for servicing and cleaning.
  • Nanoform® 250 ultra grind – Optional Features +

    • The Best of Both Worlds
      • The Best of Both Worlds Windows Interface for convenience of tool path programming on the machine controller and includes DIFFSYS 2D Basic. Interactive customer support at the machine console during part cutting via Skype that includes headset and web camera. Integrated Windows computer allows the use of any Windows compatible software on the machine controller.
    • Precitech Part Centering Accessory
      • Precitech Part Centering Accessory Precitech Part Centering Accessory is a labor saving device and improves machine utilization. It will automatically measure the part OD concentricity to the spindle axis and automatically moves the part to bring the part into alignment. When the part is centered within a user configurable alignment tolerance, the PCA routine will automatically pass off to the part program which will then machine the part. Requirements: one open IGA measurement channel, part being centered held to chuck or fixture with vacuum, one open tool holder location on the tee slot plate. The PCA is one of the productivity accessories offered by Precitech as part of their Automation Series machines and capable of centering to less than 2.5 microns (100 micro inches) eccentricity.
    • Aluminum Vacuum Chuck
      • Aluminum Vacuum Chuck 200mm Aluminum Vacuum Chuck for SP-150 100mm Aluminum Vacuum Chuck for SP-150 150mm Waterproof Vacuum Chuck for SP-150. Fixturing diamond turning parts in a stress free state is difficult. These vacuum chucks are provided with flat front faces that can be diamond turned in place on the machine. This provides a nearly perfect flat surface for fixturing. The vacuum chuck provides a fixturing method that will not stress the part if the back side of the part or fixture is also made flat. The diameter of the vacuum area is adjustable to match the diameter of the fixture provided. A central dowel pin is also provided for initial alignment and safety. Vacuum is not lost upon power failure or E stop for safety reasons, but vacuum will be lost upon failure of the compressed air supply to the machine.
    • Chiller for Work Spindle and Slides
      • Chiller for Work Spindle and Slides A closed loop, refrigerated chiller is used to stabilize the temperature of the machine and spindle. This is powered separately from the machine, and operates separately from the machine controller. With a capacity of 1400 watts, it is available in multiple voltage and frequency options. One chiller can be used to maintain temperature of up to two diamond turning lathes, or one machine with a grinder spindle. Coolant is also circulated through the linear slideways of the machine to provide thermal stability to both axes as well as the work spindle.
    • C-Axis Encoder with Slow Tool Servo and FTS Outputs
      • C-Axis Encoder with Slow Tool Servo and FTS Outputs The C-Axis option includes Slow Tool Servo software, a high resolution encoder fitted to the work spindle, and encoder outputs for use by a FTS. Slow Tool Servo ( STS) is used for rapid manufacture of large departure freeform components. It relies on the machine tool slides to actuate the tool holder synchronous with the rotation of the C axis spindle. Different from the FTS, the tool position of STS is precalculated and commanded as three coordinated axes of motion on the machine controller.
    • Rotary CNC Oil Bearing B-Axis – Nanoform 700 ultra
      • The Rotary B-axis is a direct drive, oil hydrostatic bearing, with an integral high resolution encoder, brake, optional limit switches and optional hard stops. The Rotary B-axis option allows ultra precision machining in tool normal mode which allows the use of non-waviness controlled diamond tools, or higher sweep components. It also allows tool rotation needed in the production of some diffractive lenses. The X-axis is raised on granite risers to increase the machine loop stiffness when the rotary B-axis is used. Provisions are supplied to lock the axis when rotation is not needed. A tee slot plate is available to allow a traditional setup with multiple tools / front surface probe / Ultracomp to be mounted in line on the locked B axis. Swing capacity over the B-axis tabletop is 350 mm diameter for the Nanoform 700. Radial stiffenss of 525N/μm and axial stiffness of 875N/μm.
    • Optical Tool Setter – Nanoform 700 ultra
      • Portable video-microscope utilizes a kinematic mount on top of the spindle housing. An electronic crosshair allows precise location of the tool relative to spindle centerline horizontally while vertical location of the tool is set by the focal plane. Tool tip inspection can be easily achieved while viewing the monitor. System includes a 20X, long working distance objective lens which provides a field of view of 0.24mm x 0.32mm. Can set tools within 1 micron of correct tool height.
    • Integrated Gage Head
      • This electronic indicator and amplifier are for use by the operator in measuring fixture alignment, etc. The resolution of the indicator is 0.1 micron (5 micro inches) and is shown on the UPX display screen. The full range is +/- 0.25 mm (0.010 inch). The gage head is provided with a magnetic base for flexibility and the probe tip motion can sense in both up and down directions.
    • Ultracomp
      • Ultracomp 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. The measured surface is compared with the programmed motions and an error profile is developed. The error profile is then subtracted from the part program and after compensation all subsequent machine passes will create parts with nearly all of the axis-symmetric repeatable errors removed. Ultracomp mounts can be provided for use with either diamond turning or grinding. Tee shaped diamond turning mount. Narrow profile diamond turning mount. Mount for use with vertical spindle grinder. Mount for use with small rotary B-axis. Mount with small profile and break away function
    • Tool Holder /Flexing Style
      • Tool Holder /Flexing Style This tool holder is a Precitech original, and is preferred by many customers for ease of use and adjustment. A differential screw in the back is rotated to make fine adjustments in tool height through the use of a bending flexure. The tool can be adjusted in height by 0.014 inch / 0.35 mm using the differential screw, and remounted to increase the range of height adjustment to 0.50 inch / 12.5 mm.
    • Tool Holder / Sliding Style
      • Tool Holder / Sliding Style This tool holder has greater stiffness than our flexing style tool holder, and the tool motion is pure vertical translation. It is provided with two lengths of tool nose for flexibility. A differential screw is used to make fine height adjustments directly to the tool carrier. The tool can be adjusted in height by 0.014 inch / 0.35 mm using the differential screw, and remounted to increase the range of height adjustment to 1.0 inch / 25 mm
    • Tool Holder / Dual Style
      • Tool Holder / Dual Style This tool holder carries two tools but uses the space of one regular tool holder. This is typically used for smaller work pieces under 25 mm diameter. A differential screw is used to make fine height adjustments directly to the two separate tool carriers. Each tool can be individually adjusted in height by 0.014 inch / 0.35 mm using the differential screw, and repositioned to increase the range of height adjustment to 0.5 inch / 12 mm.
    • Tool Holder / 3 Axis Adjustable – Nanoform 700 ultra
      • Tool Holder / 3 Axis Adjustable – Nanoform 700 ultra This tool holder is provided with three axes of adjustment in the X, Y, and Z directions. These are required to position the tool tip exactly over the center-line of the rotary B axis. This is required if Virtual Centering software is not provided on the machine, and is optional to be used together with Virtual Centering
    • 150mm Swing Flycutter Head
      • 150mm Swing Flycutter Head This tool holder mounts to the SP-150 work spindle. By spinning the tool on the work spindle, a flycutter is made that can diamond flycut stationary flat surfaces in one pass. When used with the rotary B-axis or an Ultradex indexing unit, polygon surfaces can be flycut. Tools in this head are adjustable in both rake and roll angles.
    • Observation Camera and LCD monitor
      • A camera with zoom lens is mounted on a magnetic base for flexible setup. The image is displayed on an independent 15 inch LCD color display monitor and does not interfere with machine setup or operation. The field of view size can be varied by the zoom lens from approximately 2 mm up to 8 mm. The working distance is 90 mm.
    • LVDT Tool Setter / Vertical & Horizontal for diamond tools LVDT Tool Setter / Single Horizontal for grinding wheels
      • LVDT Tool Setter / Vertical & Horizontal for diamond tools LVDT Tool Setter / Single Horizontal for grinding wheels A vertical and horizontal contacting type tool set station can establish tool height and radius to an accuracy of 0.4µm (10µ”). The tool setter utilizes a kinematic mount on the top of the spindle with high repeatability. A zero position knob allows the operator to null a digital readout for the tool height probe. A four-digit display enables the operator to manually adjust the tool height to place the tool at spindle centerline height. Tools are automatically probed in several positions and the associated data is acquired by the controller, which accurately computes tool radius and X offset position.
    • LVDT Front Surface Probe
      • LVDT Front Surface Probe A horizontal, contacting type probe is mounted alongside the tool holders on the Z slide or B tabletop. This is used to locate of the work piece position without any operator intervention. Machining can start immediately without any “air cutting”.
    • Additional Spray Mist Nozzle
      • Additional Spray Mist Nozzle The basic two nozzles provided on the machine can be supplemented with a third or fourth (max.4) nozzles. Each is individually commanded and each has a set of controls for air and lubricant.
    • 3C Collet Fitted to SP-150 Work Spindle
      • 3C Collet Fitted to SP-150 Work Spindle This collet adapter accepts a standard 3C collet. The collet is clamped using spring force and unclamped using air pressure through the spindle.
    • Virtual Centering Software Upgrade
      • Virtual Centering Software Upgrade This software upgrade is used in conjunction with the rotary B-axis. This provides the ability to select a position near the B-axis centerline and move the X and Z-axes in coordinated motion with the B-axis rotation so that this selected position rotates as if it is the centerline of the B rotation. This could be the edge or center of the tool radius, or the cutting edge of a grinding wheel. Having this software upgrade simplifies setting up tooling on the B axis.
    • Rotary B-axis Radial Error Compensation
      • Rotary B-axis Radial Error Compensation The B-axis radial error specification is 4 micro inches at one inch height over the tabletop. The coning error specification is one micro inch per inch of height which can increase this error motion to be greater than 4 micro inches at the cutting height. This procedure measures the radial error motions of the rotary B-axis at the spindle centerline height and implements software corrections to minimize these errors by the use of the X and Z-axes motion during B rotation. Basic error motions plus coning errors are reduced to less than 2 micro inches total at the spindle centerline height.
    • Fast Tool Servo FTS 70 300 g’s
      • Fast Tool Servo FTS 70 300 g’s Fast Tool Servo FTS 500 20 g’s Fast Tool Servo FTS 1000 20 g’s The Fast Tool Servo ( FTS ) is used for rapid manufacture of small departure (up to 1000um) freeform components and micro-structures. 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 with closed loop position feedback. With the use of a dedicated digital signal processor, the tool position is calculated and commanded in real time based upon the rotational position of the work spindle and position of the slide. The command is sent to the FTS controller, which closes the servo loop and moves the tool appropriately.
    • Heat Exchanger inside machine (Requires Chiller Option)
      • This option mounts a water to air heat exchanger inside the machine enclosure. The coolant from the chiller is circulated through the heat exchanger and the air is circulated using a small fan. In this manner the air inside the machine enclosure can be kept more stable in temperature which improves the machine thermal stability.
    • Vibration Isolation System Upgrade
      • Vibration Isolation System Upgrade The Nanoform 250 is provided with rubber isolators as standard but these can be upgraded to self leveling dual chamber type. This is recommended if the machine will be used in an area with more than usual floor vibration, such as near presses, compressors, railroad tracks, or on upper stories of buildings.
    • LED Task Lamp
      • The LED task lamp is used to improve illumination of the working zone without the addition of heat. It comes mounted to the machine enclosure with a gooseneck flexible mount. This allows the light to be oriented as desired by the operator. There is a switch on the head for turning the light off when not needed.
    • Remote Jog Pendant
      • Remote Jog Pendant This jog pendant allows the operator to perform some setup functions while away from or not facing the machine controller. For safety purposes, when the remote is active, the main operator controller is not functional. A light is provided on the main controller indicating that the remote pendant is active. Functions provided include E stop, continuous and incremental axis jog, jog increment size, and shift selection.
    • Removable Hard Disk Drive
      • Removable Hard Disk Drive This feature allows the hard drive to be removed from the machine in cases where the files contained need to be locked up for protection, or where a second duplicate hard drive can be kept as an immediate backup in case of hard drive failure.
    • Part Programming Software
      • Part Programming Software Precitech offers an aftermarket software (DIFFSYS) for the creation of part programs. This software is available in a variety of configurations (aspheric’s, diffractive’s, freeform surfaces) and with or without measurement corrective feedback functionality. Cost varies with the functions desired. DIFFSYS basic for programming of 2D tool paths is included with the Windows Interface.
    • 50,000 RPM Air Bearing Tool Spindle With Horizontal Mount
      • 50,000 RPM Air Bearing Tool Spindle With Horizontal Mount This configuration is designed for deep sag concave grinding. Used with the rotary B-axis, the system includes a motorized spindle, wheel dressers, and mounts for the tool spindle either horizontal or 45º downhill on the rotary B-axis. See Nanoform 250 grind package for water based coolant compatible machine.
    • 50,000 RPM Air Bearing Tool Spindle With Variable Mount from 45 Degrees to Vertical
      • 50,000 RPM Air Bearing Tool Spindle With Variable Mount from 45 Degrees to Vertical This configuration is designed for users with wheel shank interference issues. By tilting the spindle away from vertical, a larger shank can be used when grinding concave parts. Can be used with or without the rotary B-axis for use near vertical. Recommended for use with the rotary B-axis when tilted beyond 15 degrees away from vertical. Not for use with water based coolants. See Nanoform 250 grind package for water based coolant compatible machine.
    • 15,000 RPM Motorized Tool Spindle (Vertical)
      • 15,000 RPM Motorized Tool Spindle (Vertical) A high stiffness, DC motor driven, air bearing spindle is mounted vertically to an angle bracket located on the Z-axis. This enables grinding of glass optics, grinding of steel mold inserts, or spiral milling diamond turnable materials. The tool spindle can accommodate wheel sizes up to 127mm diameter and can run with variable bidirectional speeds up to 15,000 rpm. It can be used together with a fixed diamond tool holder for preparing fixtures or easily transitioning between grinding and diamond turning. It also has a dedicated removable mount for use with the Ultracomp surface measurement probe. See Nanoform 250 grind package for water based coolant compatible machine.
    • 80,000 RPM Turbine Tool Spindle / Horizontal, 45, Vertical
      • 80,000 RPM Turbine Tool Spindle / Horizontal, 45, Vertical This air bearing turbine spindle is packaged on a flexible mount that can be rebuilt with the spindle in either horizontal, vertical, or 45 degree downhill positions. The spindle can also be pivoted about a vertical axis to provide better work approach when needed. Can be used with or without the rotary B-axis. See Nanoform 250 grind package for water based coolant compatible machine.
    • 60,000 RPM Turbine Tool Spindle / Horizontal
      • 60,000 RPM Turbine Tool Spindle / Horizontal This air bearing turbine spindle is packaged on a flexible mount that can be rebuilt with the spindle in either horizontal, vertical, or 45 degree downhill positions. The spindle can also be pivoted about a vertical axis to provide better work approach when needed. Can be used with or without the rotary B-axis. See Nanoform 250 grind package for water based coolant compatible machine.
    • Flood Coolant Pump and Tank
      • Flood Coolant Pump and Tank For machines set up for the use of water based grinding coolant, this system provides a reservoir, pump, filter housing with 5 micron filter element, coolant delivery nozzle with magnetic base, and connecting hoses. It can be turned on and off using an M code in the part program with the switched accessory outlet on the machine. It is available in two reservoir sizes (6 gal, 15 gal) and with two supply power voltages (115VAC, 230 VAC). It is compatible with both 50 Hz and 60 Hz line frequencies.
    • ACT Software Upgrade
      • ACT Software Upgrade Adaptive Control Technology (ACT) software continuously adjust servo control parameters in real-time for the specific machining task and work piece running on the machine. ACT actively cancels repetitive sources of error. The benefits of ACT are most apparent for machining tasks involving high velocity machine motion (ex. Slow Tool Servo) or when continuously varying processing conditions (ex. ramping spindle RPM across parts during STS processing). This is recommended for use with the C-axis option and is not of assistance if the spindle does not have C-axis.
  • Application Notes +


    Nanoform 250 Ultra combined with TMC's STACIS increases yield
    Increasingly, low frequency, low amplitude building floor vibration has become a limiting factor in the performance of extremely high resolution micro-manufacturing tools. Among these tools are diamond turningmachines which are used to create ultra-precision optical components.

    Freeform glass grinding with Levicron® spindle
    Demonstrate the surface finish and form accuracy achievable when grinding glass with a Levicron® ultra precision spindle

  • Brochures +