Power Cube Genealogy

• Power Cube I - First prototype modular power unit with quick hydraulic couplers.
• Power Cube II - Frame-integrated hydraulic reservoir.
• Power Cube III - Simplified frame-integrated reservoir. Pump priming issues got us to move away from this frame-integrated design.
• Power Cube IV - Power cubes with 1/4"x2"x2" angle frames, with separate, 1.3 gallon fuel tank. Modular, adjustable engine mounting was used. Nine Prototype IV Power Cubes were built in the production run of 2011.

• One branch - the Green Machine power cube was built by Charles Liptaak Replication

• Power Cube V - Larger, plastic 5 gallon fuel tank was used. Modular, adjustable engine mounting was not used.
• Power Cube VI - 2 symmetric, 7 gallon steel tanks are used for fuel and hydraulic fluid. Modular control panel was used for the first time.
• Power Cube VII - Stable Version v12.09 from 2012, current model with full instructional video. Recommended for replication. Future work: complete shakedown of electrical system. Had prior issues with ignition spark not working. Magnetos were replaced in one or more Power Cubes - may be either quality control on Briggs and Stratton engines or mis-wiring on OSE's side. Tom Griffing was the lead developer on Power Cube VI and VII.

• One Power cube branch was built by Tom Griffing and used by Zach Dwiel Replication