Introduction: How to Build a Knex Gear Wheel

Step 1: Pieces

Theses are the pieces you'll need: (Pic 1) pieces (Pic 2) 8 "Y" connectors (Pic 3) 8 blue/purple axles (Pic 4) 24 white axles (Pic 5) 8 seven way connectors with extra slot (Pic 6) 2 snowflake connectors (Pic 7) 8 end connectors (Pic 8) 8 axle holders (Pic 9) 24 green/black small axles (Pic 10) 8 medium gears (Pic 11) 16 green four way connectors

Step 2: The Frame

The first frame: (Pic 1) get these pieces, 8 white axles(got cut off) and 8 green connectors (Pic 2) make this (Pic 3) 8 of them (Pic 4) attach it on like this (Pic 5) make this (Pic 6) get these pieces, 4 seven slot connectors and 8 small green axles (Pic 7) make this (Pic 8) 4 of them (Pic 9) attach one here (Pic 10) another here (Pic 11)another here (Pic 12) another here (Pic 13) view (Pic 14) get these pieces, 4 white axles, one snowflake connector and 4 small green axles (Pic 15) attach here (Pic 16) and here (Pic 17) and here (Pic 18) and here (Pic 19) make this (Pic 20) attach here

Step 3: Frame 2

The first frame: (Pic 1) get these pieces, 8 white axles(got cut off) and 8 green connectors (Pic 2) make this (Pic 3) 8 of them (Pic 4) attach it on like this (Pic 5) make this (Pic 6) get these pieces, 4 seven slot connectors and 8 small green axles (Pic 7) make this (Pic 8) 4 of them (Pic 9) attach one here (Pic 10) another here (Pic 11)another here (Pic 12) another here (Pic 13) view (Pic 14) get these pieces, 4 white axles, one snowflake connector and 4 small green axles (Pic 15) attach here (Pic 16) and here (Pic 17) and here (Pic 18) and here (Pic 19) make this (Pic 20) attach here (Pic 21) view

Step 4: Gears

Get these pieces: (Pic 1) take the frame, 8 purple axles and 8 medium gears (Pic 2) put on the purple axles (Pic 3) view (Pic 4) view (Pic 5) attach on a gear (Pic 6)view (Pic 7) another gear (Pic 8) another gear (Pic 9) another gear (Pic 10) another gear (Pic 11) another gear (Pic 12) another gear (Pic 13)another gear (Pic 14) another gear (Pic 15) view (Pic 16) get 8 axle holders (Pic 17) attach them here (Pic 18) view (Pic 19) get the other frame (Pic 20) attach it on (Pic 21) get 8 end connectors (Pic 22) attach here (Pic 23) view (Pic 24) view (Pic 25) push down (Pic 26) view (Pic 27) view (Pic 28) view (Pic 29) get 8 "Y" connectors (Pic 30) attach here (Pic 31) view

Step 5: You're Done!

You're done, now go do what you want with it.