Project Thumbnail
Jul 13, 2026

Cycloidal Drive Profile Calculator (VPTK)

A Streamlit application for calculating and visualizing the profile of a cycloidal drive with intermediate rolling elements (also known as VPTK — Volnovoy Reduktor s Promezhutochnymi Telami Kacheniya).

Features

  • Computes the full geometry of a cycloidal drive: rigid wheel profile, separator, eccentric (wave generator), balls, and outer diameter.
  • Interactive visualization using Matplotlib.
  • Parameter table with all computed values.
  • Export the drawing to DXF format (compatible with any CAD software).
  • Toggle individual elements on/off in the plot and DXF output.

Cycloidal Drive Profile Calculator (VPTK)