MAXSpline Through Bore Encoder

The MAXSpline Through Bore Encoder delivers high accuracy and robust performance while integrating seamlessly with the MAXSpline ecosystem. Using the same proven magnetic sensing architecture as the Through Bore Encoder V2, this model adds expanded connectivity through both ABI quadrature and CAN communication, giving teams more flexibility in how they collect and route sensor data. Its on-axis MA600 magnetic configuration ensures reliable readings even in environments where optical encoders struggle, and its ±0.5 degree calibrated accuracy supports precise control for a wide range of competitive robotics applications.

Designed specifically for MAXSpline shafting, the encoder’s through-bore profile enables clean, compact integration directly over the shaft. The housing incorporates a combination of through holes and castellated #10-32 mounting points, all aligned to the standard 0.5in ION system pitch. This allows teams to mount the encoder in multiple orientations: parallel to nest within the profile of a 2x1 MAXTube, perpendicular for offset encoding, or even attached directly to MAXSpline Shaft Bearing Blocks and pattern plates. The result is a highly adaptable mechanical interface that supports creative layouts without requiring custom spacing or nonstandard hardware.

A dedicated Molex Micro-Fit+ connector provides power and CAN access for teams who want to bypass traditional sensor cabling to motor controllers, while the JST-PH port continues to support incremental and PWM absolute outputs. Two diffused edge-lit status LEDs allow users greater feedback at various viewing angles. With built-in magnet, factory zero calibration, and multiple connection pathways, the MAXSpline Through Bore Encoder offers a versatile and competition-ready sensing solution.

Features

Connectivity and Outputs

• Incremental and absolute magnetic encoder
• Quadrature outputs: A, B, and Index
• Absolute pulse-width (duty-cycle) output
• CAN communication support
• Uses MPS MA600 sensor in an on-axis magnetic configuration

Electrical

• JST-PH 6-pin sensor interface
• Molex Micro-Fit+ connector for power and CAN
• 5V nominal operation on JST input
• 12V nominal operation on Molex input
• Two diffused edge-lit status LEDs

Mechanical and Integration

• Through-bore design for direct MAXSpline shaft mounting
• Factory calibrated zero position aligned to case notch
• Compatible with ION 1/2in pitch system
• Combination of through holes and castellated holes for #10-32 fasteners

Specifications

• Case Material: Black ABS
• MAXSpline Input Material: White Acetal
• Input #1 (JST-PH 6-pin) Voltage: 5.0V Nominal
  • Min Voltage: 4.5V
  • Max Voltage: 5.5V
• Input #2 (Molex Micro-Fit+) Voltage: 12V Nominal
  • Absolute Maximum Voltage: 30V
• Factory calibrated zero-position¹
  • Zero calibrated to notch in case
• Accuracy: +/- 0.5 degree
• Incremental Output:
  • Quadrature Resolution:
    • 2048 Cycles per Revolution
    • 8192 Counts per Revolution
  • Index Pulse Width: 0.04°
• Absolute PWM Output:
  • Output Period: 1000μs
  • Output Frequency: 1kHz
  • Minimum Pulse (0°): 3.884μs
  • Maximum Pulse (360°): 998.06μs
  • Pulse Resolution: 12-bit
• Connector #1 : JST-PH 6-pin
• Connector #2 : Molex Micro-Fit+ 
• Maximum Rotation Speed: 4,000 RPM
• Bore: MAXSpline
• Mounting Holes: #10 Clearance
• Length: 107.5mm (4.23in)
• Width: 50.8mm (2in)
• Thickness: 15.9mm (0.63in)
• Weight (without Cables): 75g (0.165lb)

Do not disassemble the sensor. Disassembling the MAXSpline Through Bore Encoder will dereference the zero position with the physical case notch. It is not possible to recalibrate the zero position as it is permanently saved inside the sensor at the factory.

Kit Contents

Documentation

• MAXSpline Through Bore Encoder Overview

CAD & Drawings

• REV-11-9008 STEP FILE
• REV-11-9008 ONSHAPE
• REV-11-9008 Drawing