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Nanoform L 1000 ultra grind

Nanoform L 1000 ultra grind ultra precision lathe for diamond turning and grinding
  • Overview +


    The only fully flood coolant compatible small frame ultra precision machine. It's designed for diamond turning and ultra precision freeform milling and grinding. It can be configured with up to 5 axes (X, Z, C, B, and WFast Tool Servo).

    Common applications include glass grinding of aspheric and freeform glass lenses and mold inserts for pressing glass lenses.

    The ultra grind is also very beneficial for turning infrared materials that require water-based coolant, such as silicon.

    The Nanoform X 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 8 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 X 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.

    Capabilities
    • Single point diamond turning (2 or 3 axes) including non-axi-symmerical designs of optics and optical molds
    • Tool normal diamond turning (3 or 4 axes) utilizing a contouring B axis for freeform shapes in hard-to-machine materials, such as silicon
    • Precision grinding and milling (2 or 3 axes) utilizing a 15,000 RPM spindle in a 45° or 90° orientation for cross-axis grinding of precision glass optics
    • Freeform grinding and milling (3 or 4 axes) utilizing a 80,000 RPM spindle and a rotary B axis for parallel grinding or 45° grinding of optical mold inserts such as tungsten carbide for glass pressing applications


  • Key Features +


    Nanoform L 1000 ultra grind work envelope 1 Nanoform L 1000 ultra grind work envelope 2

    Enlarged fully sealed enclosure accommodates any grinding configuraiton - horizontal, vertical, 45° and the 1000 mm swing capacity. Its stainless steel construction protects the machine from flood coolants.


    Nanoform L 1000 ultra grind spindle compartment 1 Nanoform L 1000 ultra grind spindle compartment 2

    Spindle and slides raised directly from the granite base for improved stiffness and damping. Direct access between spindle and work envelope for optical tool setter.


    Nanoform L 1000 ultra grind air filtration system Nanoform L 1000 ultra grind doors open

    Optional air filtration system and easily accessible front and side of enclosure.

  • Key Specifications +


    Turning performance Surface roughness ≤ 1.5 nm Sa
    Form accuracy ≤ 0.15 µm P-V
    Grinding performance Surface roughness ≤ 5 nm Sa
    Form accuracy ≤ 0.2 µm P-V
    Swing Capacity 440mm over X & Z axes
    220 mm over B axis
    Load Capacity SP-150 spindle: 114 kg (250 lbs)
    HS-75 spindle: 38 kg (85 lbs)
    Position feedback resolution 8 pm (0.008 nm)
    Programming resolution 0.01 nm
  • 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 II

    Operating System

    QNX real time operating system with 64-bit floating point decimal precision

    Programming Resolution

    0.01 nm linear/0.0000001° rotary

    File Transfer Storage

    USB, CD, Ethernet

    Performance (SPDT)

    Surface Roughness (Sa) < 1.5 nm, Form Accuracy (P-V) < 0.15 µm

    Performance (Grinding)

    Surface Roughness (Sa) < 5 nm, Form Accuracy (P-V) < 0.15 µm

    Linear hydrostatic slideways

    Description

    Type

    Hydrostatic oil bearing slideways with symmetrical linear motor placement and liquid cooling

    Travel

    X and Z: 220 mm (8.6 in.)

    Maximum Feedrate

    4,000 mm/min. (157 in./min.)

    Drive system

    AC linear motor

    Position feedback resolution

    8 pm (0.008 nm)

    X-axis Straightness

    Horizontal: 0.2 µm (8 µin.) full travel 0.05 µm/25 mm(2 µin.)

    Z-axis Straightness

    Horizontal: 0.2 µm (8 µin.) full travel 0.05 µm/25 mm(2 µin.)

    Vertical Straightness

    0.375 µm (15 µin.) 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 in.) diameter

    Motor

    Integral brushless motor

    Ultimate Load Capacity

    136 kg (300 lbs.)@ 100 PSI; 204 kg (450 lbs.) @ 150 PSI

    Axial Stiffness

    230 N/µm (1,314,000 lbs./in.)

    Radial Stiffness

    130 N/µm ( 743,600 lbs./in.)

    Motion Accuracy

    Axial/radial 15 nm (0.6 µin.)

    Thermal Control Option

    Liquid cooled chiller +/- 0.1°C accuracy

    C-axis Feedback Resolution

    0.010 arc-sec 16,200 line encoder (0.018 arc-sec 9,000 line encoder available)

    C-axis Postion Accuracy

    +/- 1 arc-sec

    C-axis Max Speed

    2,000 RPM (4,000 RPM with 9,000 line encoder)

    Work Holding Spindle Max Speed

    10,000 RPM

    Rotary B-axis

    HydroRound II Rotary B-axis

    Type

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

    Material

    Stainless steel

    Tabletop Size

    330 mm (13 in.)

    Standard Swing Capacity

    220 mm (8.75 in.) diameter over tabletop/440 mm otherwise

    Load Capacity

    225 kg (500 lbs.)

    Maximum Speed

    3,600 deg/min

    Holding Torque

    > 108 N-m (80 ft-lbs.)

    Position Feedback Resolution

    0.004 arc-sec

    Positoning Accuracy

    +/- 0.1 arc-sec

    Radial Error Motion

    0.10 µm (4 µin.) @ tool height (4.4 in. above tabletop). Can be improved with optional error mapping.

    Coning Error

    1.0 nm/mm (1.0 µin./in.)

    Radial Stiffness

    225 N/µm (1,280,000 lbs./in.)

    Axial Stiffness

    600 N/µm (3,428,000 lbs./in.)

    Moment Stiffness

    3.4 N-m/µrad. (30 in.-lbs./µrad.) (144 in.-lbs./arc-sec)

    High Speed Milling/Grinding Spindle

    High Speed SP75FF Spindle

    Levicron High Speed Milling Spindle

    Air Supply Pressure

    690 kPa (100 PSI)

    610 kPa (88 PSI)

    Air Consumption

    50 l/min (1.7 SCFM)

    70 l/min (2.5 SCFM)

    Radial Load Capacty

    32 kg (70 lbs.)

    29 kg (65 lbs.)

    Axial Stiffness

    70 N/µm (400,000 lbs./in.)

    50 N/µm (285,000 lbs./in.)

    Radial Stiffness

    22 N/µm (125,000 lbs./in.)

    35 N/µm (200,000 lbs./in.)

    Axial Error Motion

    < 0.05 µm (2 µin.)

    < 30 nm asynchronous

    Radial Error Motion

    < 0.05 µm (2 µin.)

    < 30 nm asynchronous

    Maximum Speed

    15,000 RPM

    80,000 RPM (stiffness increases 50% with 60k RPM model)

    Facility Requirements

    Nanoform X ultra grind

    Power

    208 or 230 VAC-3.0 KVA 1 phase 50/60 Hz

    Air Supply

    Typical: 12 SCFM @ 100 PSIG, filtered to 50 µm and dry to 10°C dew point

    Machine Footprint

    929 mm x 2152 mm x 1790 mm (36.6 in. x 84.8 in. x 70.5 in.)

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