LifeTrac GrabCAD Challenge: Difference between revisions
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=Existing Model of LifeTrac 6= | =Existing Model of LifeTrac 6= | ||
This one has one power cube | This one has one power cube. Cylinders need to be fitted. | ||
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Revision as of 01:56, 16 August 2013
Abstract on Design Goal: The following materials exhibit the current state of LifeTrac - Open Source Ecology's open source tractor. The goal is to take this design from a Mad Max ghetto rider to a quality, high performance tractor with articulated steering. The articulated steering is used to reduce wheel loads compared to skid-steering configuration - thereby simplifying the design of the wheel units drastically. We are currently designing the tractor for use with 1 or 2 Power Cubes - our 27 hp hydraulic power units. The goal of this challenge is to improve on this design based on past builds. See the results of LifeTrac 5 - and the numerous comments there on design issues in the videos. All details of this 'lifesize erector set' design are to be evolved until we have a satisfactory tractor. By helping this project, you are helping to develop a 'peoples' tractor' that can be built from stock parts - and that can be maintained easily by the user for a lifetime of service.
See intro video on the LifeTrac history -
The LifeTrac Story 2012. from Open Source Ecology on Vimeo.
Existing Model of LifeTrac 6
This one has one power cube. Cylinders need to be fitted.
Download Sketchup file (18MB): File:LifeTrac6.skp
General Requirements
Cab Module Requirements
Click edit to access links in the drawing.
Loader Arm Requirements
Power Cube Module
Quick Attach Module
We are using the Bobcat Standard Quick Attach module:
Bobcat_Standard_Quick_Attach_for_LifeTrac
Modular Wheel Units
These wheels mount on the frame tubing as quick-connect modules for the tractor:
This is a detail of the wheel module frame:
Rear Wheel Base
This is the current design of the entire rear wheel base.
Steering Pivot
This is a detail of the suggested pivot that joins the front and rear sections of the tractor.
General Requirements
LifeTrac 6 Product Requirements
First Cut
Links
- TED Talk
- OSE website - http://opensourceecology.org
- OSE documentation site - LifeTrac Documentation at Dozuki
- Prior work on current model of LifeTrac - see LifeTrac Modules
- Last version of this tractor - LifeTrac 5