OpenSource Community Edition
Drag to Rotate • Scroll to Zoom • Right-Click Pan

PLANETARY GEAR ENGINE

⚙️ Kinematic Precision
🛠️ Profile Shift (x)
Thickens/thins teeth to prevent undercutting on small gears and precisely controls center distance.
📐 Dimensions & Holes
🔬 Advanced Profiling
°
mm
🎬 Environment & Export
💾 Save & Load Profile

System Specifications

True Center Dist. mm
Working PA (αw) °
Ring Teeth (R)
Gear Ratio
System Geometry
Module (m)
Pressure Angle (α)°
Circular Pitch (p)
Base Pitch (pb)
Clearance (c)
Sun Gear (Center)
Teeth (z)
Profile Shift (x)
Pitch Dia. (d)
Base Dia. (db)
Outer Dia. (da)
Root Dia. (df)
Planet Gears (Orbiters)
Teeth (z)
Profile Shift (x)
Pitch Dia. (d)
Base Dia. (db)
Outer Dia. (da)
Root Dia. (df)
Ring Gear (Outer)
Teeth (z)
Pitch Dia. (d)
Base Dia. (db)
Inner Dia. (Tip) (da)
Root Dia. (df)
Outer Casing Dia.

Support the Developer

If this free tool saved you hours of CAD sketching, the best way to support the project is to grab a lifetime upgrade!

Tier 2: Maker Edition
Unlocks 3D Mesh (OBJ/STL), Helix Angles, & Bevels.
Get Maker Tier $19.99 Lifetime ►
Tier 3: Pro Edition
Unlocks Solid B-Rep STEP, QC (MOP), & Stress Analytics.
Get Pro Tier $49.99 Lifetime ►