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HAAS Acceleration Calculations

VF3

  • Y AXIS: Mits 900W Servo, 1500 Rated RPM, 3000 Max RPM, 5.39NM
  • Ballscrew: 40MM DIA 8MM Pitch
  • Max load: 3500 lb (1588 kg)
  • Max thrust: 2550 lbf (11343 N)
  • Advertised max feedrate: 1000 ipm
  • Calculated max feedrate (max rpm * pitch): 944 ipm
  • Max cceleration with rated load (+ 800lb saddle/table): 11343 / (1588 + 362) = 5.81 m/s2 (0.59 G)
  • Acceleration with VF3SS max load (+ 800lb saddle/table): 11343 / (794 + 362) = 9.81 m/s2 (1.00G)
  • Acceleation with 500lb (227kg) load (+ 800lb saddle/table): 11343 / (227 + 362) = 19.25 m/s2 (1.96G)

VF3SS

  • Y AXIS: Mits 1.3KW Servo, 1500 Rated RPM, 3000 Max RPM, 8.34NM
  • Ballscrew: 40MM DIA 12MM Pitch
  • Max load: 1750 lb (794 kg)
  • Max thrust: 3085 lbf (13723 N)
  • Advertised max feedrate: 1400 ipm
  • Calculated max feedrate (max rpm * pitch): 1417 ipm
  • Acceleration with max load (+ 800lb saddle/table): 13723 / (794 + 362) = 11.87 m/s2 (1.21G)
  • Acceleation with 500lb (227kg) load (+ 800lb saddle/table): 13723 / (227 + 362) = 23.29 m/s2 (2.37G)

VM3

  • Y AXIS: Yaskawa 1.3KW Servo, 1500 Rated RPM, 3000 Max RPM, 8.34NM
  • Ballscrew: 40MM DIA 6MM Pitch
  • Max load: 4000 lb (1814 kg)
  • Max thrust: 4100 lbf (18238 N)
  • Advertised max feedrate: 710 ipm
  • Calculated max feedrate (max rpm * pitch): 708 ipm
  • Acceleration with max load (+ 800lb saddle/table): 18238 / (1814 + 362) = 8.38 m/s2 (0.84G)
  • Acceleration with VF3SS max load (+ 800lb saddle/table): 18238 / (794 + 362) = 15.78 m/s2 (1.60G)
  • Acceleation with 500lb (227kg) load (+ 800lb saddle/table): 18238 / (227 + 362) = 30.96 m/s2 (3.16G)

References:

@friesendrywall
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friesendrywall commented Apr 9, 2018

Are these next gen? If not, could you post the accel params used to arrive at these figures?

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