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Sensa
HDM48000 CNC
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Sensa automatisering bv
Natriumweg 7
3812 PV Amersfoort NL
phone: +31 33 4654408
fax:     +31 33 4614433

e-mail:
info@sensaCNC.nl

 updated August, 2004

Sensa automatisering

High Speed Milling CNC based on InverseServo™

Just imagine: finish your one hour milling job in 2 minutes!

World's fastest and most affordable CNC control

  • HDM48000 CNC control for High Speed Milling & Cutting (aluminium, plastic, marble), Rapid Prototyping and 3D modeling
  • Unique InverseServoprinciple: Up to 10x faster than other systems
  • Unbelievable: 48000 positions/sec: Imagine: even at speeds as high as 28 meter/min, steps remain under 0.01 millimeter!
  • Very high and precisely controlled acceleration
  • Fast USB2.0 (480 Mb.sec) interface between PC and HDM48000
  • For routers and milling machines with sizes up to 3 x 5 meters
  • ISO CNC operation and HPGL 2D and 3D

New motor dynamics

Stepper motors provide only power at speeds far below 3000 rpm. That's typical for stepper motors.

This is due to the fact that the inductortakes time to become "charged" and for a magnetic field to decay. Sensa's Inverse Servo CNC concept solves this problem and fully controls the behaviour and movement of the motor also at high speeds. A unique four quadrant current amplifier controls the currents in the motor at all speeds and (de-)accelerations. Dynamic performance of a motor is a result of the delivered power and its rotor-inertia. Power is torque x rpm. With Sensa's special amplifier the torque vs. speed curve remains linear from holding torque up to 14.000 rpm using a 60 kHz chopper frequency and high voltage. At 3000 rpm the motor has stil 80% of its holding torque. Sensa controls "look-ahead" meaning that cutting feeds remain constant under all circumstances. High speed contouring with constant feed prevent plastic from melting. The surface quality is extemely high and don't need any further finishing.      

NOW INTRODUCING!
LCIS THE LOW COST VERSION OF THE HDM48000
FOR < Euro 1900
The same speed and accuracy as the HDM48000 but only for 3 axis and less heavy tables. Ideal for router sizes up to 1x1 meter

torque vs. speed performance