The conveyance is a mechanism for linearly indexing parts. A Geneva mechanism is used to drive a single-roller indexing chain in two-inch increments. Nests are spaced every four inches along the chain, such that every other index is intermediate with no parts staged. This allows production modules to be installed or removed without interfering with the parts or parts holders.
The conveyance is mounted at the front of the FARKUS Bench. It comprises one Geneva drive module and a similar un-driven idler module. The two modules may be attached by a length of 1-inch-profile extruded aluminum T-slotted framing material of any length, given appropriate tensioning.
Bill of Materials
|Aluminum T-Slotted Framing (80/20 Compatible) Extrusion & Fasteners||$10||McMaster-Carr|
|Acrylic (1/8- and 1/4- inch thickness, for structural parts)||$100||McMaster-Carr|
|Delrin (1/8-inch thickness, for high-wear parts)||$80||McMaster-Carr|
|Hardware, incl. screws, nuts, standoffs, shoulder screws, threaded inserts, bearings, etc.||$60||McMaster-Carr|
|Photointerruptors, buttons, wires||$20||Sparkfun|
|2.5A MC33926 Motor Driver||$24||Sparkfun|
|29:1 Metal Gearmotor||$25||Pololu|