Power Cube v16.09
3D Image
3D Manipulable file in Sketchup:
- Note: this needs to be converted from its proprietary Sketchup format into FreeCAD for editing, and WebGL for embedding.
Presentation
Muffler
Design Review
Note: v16.09 denotes the month/year of active development on the Power Cube, according to OSE naming standards.
Design
Link to Google Warehouse to download Sketchup file.
Wanted: conversion to FreeCAD native format.
BOM
Development
Published the latest design in Sketchup below
This design has had few updates lately. Here are the latest updates:
Aug 2016: Twin 18HP engine design in the works - mostly complete, will be built in the September Power Cube workshop
Snapshot: Hydraulic ports - 2 3/4" male outputs from the top of the pumps, 2 3/4" female returns and 1 1/4" low pressure return.
Shapshot: Suction plumbing: Use 2 suction strainers and separate hoses to pumps, as reservoir ports are only 1 1/4" and these suction strainers are only rated at 8GPM each.
Question
How should corners be formed and welded for optimal strength? Here is one image of a corner, with one of the horizontal members in the corner and the others welded to it:
Should the orientation be the same for all 8 corners?
Should we employ any special grinding / welding procedures for the one weld where all three members meet?
Files
This is the 16.8 release. See file revision history for other versions.
Bill Of Materials (BOM): Power Cube BOM
- Duromax Engine Specs (with line drawings) File:DuromaxEngineSpecs.pdf
Power Cube Working Document: ["https://docs.google.com/spreadsheets/d/1DxVZlZE0Ky5eLrOL2lcxCfL6yHJLP_iRlZApJ4uzfqM/edit#gid=0"]
Wiring Diagram: File:PC16.8WiringDiagram.dia Wiring Diagram
Formulas
Hydraulic Flow
Pump displacement: 0.677 Cubic inches / Revolution (CIPR) Engine max speed: 3600 RPM Flow per engine/pump: 3600 * 0.677 / 231 = 10.55 GPM Total Flow: 21.1 GPM