Power Cube 2017

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1. Power Cube Genealogy
2. MinimumViableProduct
1. Gasoline powered power cube
2. CNC Cut frame - integrate the fuel tank. Simplify.
1. Use a tank sealer instead of finished weld for seal
3. Modular hydraulic pump (you can dismount and reuse) the hydraulic pump
4. Hypermodular Power Cube - separate cooler. Separate hyd tank. No battery for Power Cubes, just pull start in version 1
5. Multiple of 16hp - as far as basic power level - 1-4 power cubes
6. Both tracks and wheels are retrofittable
• Modular Wheel Unit - OSE Part Library
1. Or - use the hydraulic wheel motor without the frame
7. Modularity 2.0 over the 2015 version - tracks easier to biuld, Power Cube Lite, more modular power cube, more modular track

4. Other Features

• Solar Powered for slow operation - requires a solar panel + small electric motor + small hydraulic pump
• See prior work at Power Cute - driving the tractor.
• Charcoal Powered - gasifier
• Robotic vision + guidance - computer vision
• Remote control + programmable for extended tasks
• 3D printed track pads? For this, we would need filament maker and extrude our own rubber filament

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Design Sprint - Power Cube 2017

Sat Aug 5 , 2017

Noon - 4 PM CST USA time

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Power Cube - CNC Cutting

1. Modular Breakdown
1. New Frame with integrated gas container
2. Separate Hydraulic Fluid
3. New Cooler Module
2. Assignment to participants

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Power Cube 2017 - Study of Past Work

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Advantages:

• Control panel is plug and play
• Compact design
• Symmetrical design

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Disadvantages:

• Mounting of cooler fan to oil cooler has been a weak point, due to special mountings
• Builder must have detailed understanding of mount system
• Pump is not easily accessible as it is covered on 3 sides
• Engines have trouble starting without pump priming

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Power Cube 2017 - Modules

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Modules:

• Frame - ¼” style, CNC Cut with 2” widths on corners
• Engine - full CAD needed. Start with simpliefied version. BOM
• Engine mount (to frame)
• Pump (see 16.08)
• Start with simplified version
• Pump Coupler
• Hydraulic reservoir - with integral hydraulic return
• Integrated Hydraulic Reservoir
• No integrated Hydraulic Reservoir - ie, Master Power Cube provides the fluid
• Quick connect filter
• Cooler - independent module with ¼”x2” frame
• Oil FIlter - quick connect to hyd reservoir

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Overall Modularity Strategy

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• Pump is dismountable
• Pump Couples directly to hydraulic tank
• Hydraulic tank is frame integrated for Master Power Cube
• Other power cubes are tankless
• Cooler Module is separate
• Gas tanks are built into engine
• MVP doesn’t have battery. It’s an easy add-on

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Engine CAD - Dimensions Diagram for Reverse Engineering. BOM

Sketchup.

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Engine CAD FreeCAD

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JOZEF

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Not sure if that’s accurate. That’s for the 7hp motor, not the 18hp but it’s the only pic I’ve found so far.

The dimensions are different on every page (Home Depot, amazon, generator factory outlet. So I’ll go off Emmanouil’s or default to the largest.

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20.47 in. L x 18.5 in. W x 22.0 in. H.

My model is the XP16, but it looks it has identical dimensions with the XP18 model�19” H×22” W ×14” Depth + 3.5” shaft

Pump CAD - Dimension Diagrams for Reverse EngineeringBOM

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Pump CAD

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ABE

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Purchasing Source

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Manufacturer Page with PDF and Schematic Diagrams

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Note: Do not use rear port - too complicated fittings

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FreeCAD Wiki file link

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Coupler - take engine shaft and motor shaft and draw up a coupler. Start with coupler diagrams for reverse engineering.BOM

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Coupler CAD

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AYO

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1” Shaft Coupler - take

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5/8” Shaft Coupler

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⅝” 9 Spline Coupler

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Coupler Lengths

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1” Shaft Coupler

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⅝” 9 Spline Coupler

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Shaft Size: 1 in. Dia, 2-3/4 in. Long, 1/4 in. Keyway, shaft end drilled & tapped w/ 3/8 in. 24 UNF.

2”

⅝” spline coupler welded on

1-⅛”

Engine Mount to Frame. BOM

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Engine CAD FreeCAD

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EMMANOUIL

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Mounting Holes distances��7 11/16” L × 3 11/16” W

Frame Design - D3D - 6x flat side - ¼” Steel. 2’x2’

Tank sides x2

X4

(front bottom, top, back)

right side

AHMED/

Emmanouil

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4”x24”x24” inner tank volume

Tank Volume Calculation -

• 4”x24”x24” - 10 gallon

24”

24”

2”

Frame_module

http://opensourceecology.org/wiki/File:PC_1708_frame.fcstd

Reservoir Design

Pipe Chart

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reservoir

¾” Suction line + valve.

No suction strainer.

½” Return + female quick coupler

Separate filters

Part count for the ½” return:

• 4 quick couplers
• 4 nips
• TOTAL - 8�

Breather/Filler with a dipstick

¼” Case Drain + female quick coupler

hose barb to nptm

Coupler Mounting

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Engine

Oil Filter

Link

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ISRAEL

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• Modular
• Couples directly to hydraulic tank
• Hydraulic tank is frame integrated for Master Power Cube
• Other power cubes are tankless
• Cooler Module is separate
• Gas tanks are built into engine

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Male QC

Female QC

Fitting

Fitting

Fan - Diagram for Reverse Engineering BOM. Amazon link.

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Fan CAD

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Alejandro

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Bolt pattern -

L, W, H -

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Cooler - Diagram for Reverse Engineering BOM

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Cooler CAD - File

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Roberto

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Heavy Duty Oil Cooler Specifications Page 5 / 371

Hayden Automotive 1268 Heavy Duty Oil Cooler

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Separate vs combined Quick Connects

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reservoir

Suction - valve

Return w/ quick coupler

Separate filters

Part count for the return:

• 6 quick coupler pieces, 5 female, one male
• 6 nips to couplers
• 3 tees
• 2 nips between 3 tees
• TOTAL - 17�

Modular QC Filter

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Oil

Filter

Suction - valve

Return w/ quick coupler

Male quick connect

Female quick connect

Israel…

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