Power Cube Genealogy

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Genealogy refers to Prototype Number, and Specific Versions. Nomenclature is Power Cube Prototype (Roman Numerals) for the general prototype, and Power Cube v14.mm(.dd) where 14 stands for 2014, mm is month, and dd is day, as in Ubuntu release versioning.

  • 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.
  • 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.
  • Micro Power Cube - built in May, 2014, by Tom Griffing for Factor e Farm. Featured a 2kW DC model airplane motor, and a dedicated 12V power supply. Punched 1" holes in 1/2" steel.
  • Micro Power Cube 2 & 3 - built in June, 2014, for the Micro Power Cube Workshop. Used 120AC vaccuum cleaner motor.
  • Power Cube VIISL - Structural Large - 8x9x8 hole tubing size Structural Power Cube. Was this not 9x9x8 like 15.6?
  • Power Cube VIISS - Structural Small - 8x8x8 hole tubing size
  • Power_Cube_v15.6 - July 2015 build, 6 units were built. One tested with gasifier. Dimensions were 9x9x8 holes
  • Power Cube v16.09 - This version is a complete re-design, using twin engines & pumps and commercial reservoir and pump mounts. Results: pump mounts are too long and not reliable for fit, as we had to drill them out. Frame is too heavy unless we want a structural power cube, and we are migrating more to non-structural power cubes. Commercial hydraulic tank has awkward geometry and is not well suitable. Otherwise, engines appear to be a good choice.
  • Power Cube v17.08 - current build