• Power supply: 230 V 800 W
• Measuring accuracy: 0.0005 m
• Min Length: 0.5 m
• Max Length: 100 m
• Max Cable Diameter: 14 mm
• Speed: 2 m/s
• Features:
  • Custom electric cable cutter
  • Linear axis as guide for even winding
  • 2-hand operation
  • Emergency switch
  • Changeable cable reel
  • Silent guide rolls with ball bearings
  • Dynamic speed (slow start, slow end)

Finished machine

Mechanical

• Frame: 40x80 mm “Item” Aluminium profile
• Linear guide:
  • Model: T06
  • Travel: 100 mm
  • Pitch: 4 mm
• Metal components:
  • 18x 6x13x5 mm ball bearings for rolls
  • Various nuts and bolts
  • Custom angle-iron parts and adapter plate
• 3D-printed Parts:
  • Cable reel
  • Guides, Rolls
  • Control box
  • Encoder mount
  • Cutter main body
  • Cable mounts

Disassembled machine

Electrical

• Custom pcb with ESP-32 microcontroller
• Rotary encoder - LPD3806-600BM
• Three-phase motor - 0.3kW with 18:1 Gearbox
• Variable frequency drive (VFD) - T13-750W-12-h
• Stepper motor - Nema 12 28HB40 0.6 A
• Stepper driver - Microstep TB6600 9-42 V, 0.5-4 A
• Switching power supply - 12 V, 8 A
• Wiper motor
• Safety relay - Siemens 3SK1111-1AB30
• 2x 7-Segment display MAX7219
• Various push buttons and LED lights

Switching cabinet with power supply, safety relay, VFD and stepper driver

3D model of a cable guide

Sliced model for 3D printing

Wiring the control box

Wiring the cabinet

The firmware for this custom pcb was created using the following components:

• Programming Language: C++
• Development Framework: ESP-IDF
• Flowchart Design: diagrams.net
• Version Control: Git

The repository with the source code and all relevant documents is available on GitHub

Small segment of the created flowchart while planning the firmware