KNex Ball Machine- The Prize by Keggore1

Knex Ring Lift Version 2 by Sorunome

Knex Ball Machine Element - The Elliptica by I_am_Canadian

K'nex Fully Automatic Burst Rifle: The K-2 v.2 by Kinetic

'The Dragons Tail' by Blue Mullet

Knex Rod sorting machine by Sorunome

Knex Rally Car SS by KneXtreme

Knex Ring Lift by Sorunome

K'nex Soda Rack by ElvenChild

Micro BM by Sorunome

K'nex Trailer by knex365

The Official Guide for Building Knex Ball Machines by RNB

Ventus - K'nex Eurofighter by RNB

Blitz Seeker Instructions by MattJoeP

Blitz Seeker by MattJoeP

K'nex Table saw by Marmaduke the hamster

Knex Folding Target Range by cazadactle