August 18, 2017
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Freeform L Brochure Freeform L Brochure
Contact Us:
Corporate Office:
44 Blackbrook Road
Keene, NH 03431 USA
Tel: 603 357-2511
Fax: 603 358-6174
Freeform L 5-Axis Ultra Precision Machining System, freeform diamond turning
  • Industry leading swing and load capacity
  • Flexibility to produce freeform geometries
    with 3 linear and up to 2 rotary CNC axes
  • 5 Axis freedom with 3 axis performance
    Y axis and spindle designed for maximum thermal stability
  • Thermally controlled enclosure options
    insure accuracy during long cutting-time parts
  • Reduced sensitivity to vibration
    enabled by its integral TMC MaxDamp® isolation system
  • Capability to produce large and small parts auxiliary spindle mount to the X axis
Whether you need to manufacture a freeform part today or want the flexibility for future market requirements,
the Freeform L is precisely the machine you need.

Precitech has added an innovative vertical axis to our field proven large frame platform, increasing flexibility and precision. With the Freeform L, customers can diamond turn, micro-mill, micro-grind, and groove non-rotationally symmetric surfaces. Adding this third linear axis gives users the flexibility to produce freeform surfaces which may not be achievable using 2 linear axis machining.

Since 1962 we have delivered complete ultra precision solutions and maintain an installed base of over 1,500 systems worldwide. We continue to define the state-of-the-art, enhancing accuracy, productivity, and ease of use.

Precitech is ultra precision machining solutions.
Flexibility Without Compromise
Turning Configuration (T)             Milling Configuration (M)
60 hour stabilitiy test graphic
60 hour stability test using raster fly cutting
resulting in a 36 nm rms form error.
Stability test results
Key Specifications
Turning performance Surface roughness < 1.5 nm Ra Form accuracy < 0.125 micron P-V
Surface roughness < 10 nm Ra
(< 3 nm is achievable with optimum material and cutting conditions)
Form accuracy < 0.2 micron P-V
Ultimate load capacity 91 kg (200 lbs)
@ 100 psi supply pressure
Standard swing capacity
650 mm diameter over the B axis – can be expanded to 700 mm when equipped with temperature controlled room
Micromilling of crystalline material (CaF2)
Aspheric Toric using Adaptive Control Technology (ACT)
Freeform augmented reality (AR) lens mold
High speed lens array for automotive headlamp mold
3 Axis (XYX) ruling using PEPS II-VX
XZ vertical grinding
Y Z turning
test resulting
in a 0.83 nm Ra
surface finish
Turning test
Turning results
Common Applications