Tri-Finger Gear Clicker

The Three Finger Gear Clicker is a tactile hand exerciser built around gears as its core mechanism. Three finger holes, each ringed with gear teeth, hold your index, middle, and ring finger. Red pull handles mesh directly with those teeth, linking all three together through the gear ring.

The purpose is simple and satisfying: push one handle in, and the connected gears drive the others back out — an alternating, reciprocating motion between your fingers. Keep pushing and releasing across the three fingers and the whole mechanism keeps cycling, giving your fingers a rhythmic stretch and workout as they push against each other through the gears.

Key features:

• Gear-linked reciprocating motion — pushing one handle drives the connected gears to push the others back out, creating an alternating push-pull action across all three fingers.
• Three-finger design — fits index, middle, and ring finger at once for a full-hand, connected stretch.
• Print-in-place assembly — handles and rings interlock during printing, no post-assembly needed.
• Dual-color option — print the base and handles in contrasting filament (e.g. black base with red handles) for a bold look.

Use cases:

• Hand and finger stretching / mobility exercise
• Grip, dexterity, and coordination training
• A rhythmic, tactile fidget for stress relief

Printing tips:

• Print flat/as shown for the cleanest gear tooth definition; check bridging on the finger holes depending on your printer's cooling.
• No glue or extra hardware needed — everything moves freely straight off the print bed.

A simple, functional design where gears aren't decoration — they're what links your fingers together and drives the push-pull motion.