LifeTrac Genealogy: Difference between revisions

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#[[LifeTrac VI]] - Continued LifeTrac Construction Set. Modular Wheel Units are a robust design feature. Same design, but fixed the loader arm geometry. Used a single curl cylinder, but found that it makes it difficult to enter the cab. Issues with curl geometry. Need to simplify forearms. Reached 75 hp with 3 Power Cubes, such as 25 hp for wheel drive and 50 hp for 6' trencher.
#[[LifeTrac VI]] - Continued LifeTrac Construction Set. Modular Wheel Units are a robust design feature. Same design, but fixed the loader arm geometry. Used a single curl cylinder, but found that it makes it difficult to enter the cab. Issues with curl geometry. Need to simplify forearms. Reached 75 hp with 3 Power Cubes, such as 25 hp for wheel drive and 50 hp for 6' trencher.
#'''LifeTrac 7''' - first tracked version.Continuing Tractor Construction Set with [[Bulldozer Development]]. Initial build of tracked tractors. Need for CNC torch table cutting of parts became evident - as making tracks by hand is too time consuming.
#'''LifeTrac 7''' - first tracked version.Continuing Tractor Construction Set with [[Bulldozer Development]]. Initial build of tracked tractors. Need for CNC torch table cutting of parts became evident - as making tracks by hand is too time consuming.
#'''LifeTrac 8''' - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull.
#'''[[LifeTrac v16]]''' - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull.
#'''LifeTrac 17.10''' [[LifeTrac 17.10]]
#'''LifeTrac 17.10''' [[LifeTrac 17.10]]
  [https://photos.google.com/album/AF1QipNCjA41rLXRlJIjH0bv9KiD7QaXXNKGknY9zThu]
  [https://photos.google.com/album/AF1QipNCjA41rLXRlJIjH0bv9KiD7QaXXNKGknY9zThu]

Revision as of 17:46, 12 January 2018

  1. LifeTrac I - Articultated steering, 4 wheel drive, wheel chains, dedicated 55 hp diesel engine. Limited roll-over protection.
  2. LifeTrac_II - Began modular Power Cube design. Skid steering with tracks on rubber tires, 4 wheel drive, 2 modular engine units (Power Cubes), 54 hp total, front- and rear-end loaders included. 32 cu in hydraulic motors. Full roll-over protection as driver sits inside cab. Brakes are the hydraulic motors themselves.
  3. LifeTrac III - Same as II but one single (front-end) loader arm. 32 cu in hydraulic motors. Quick attach valves added. Issues with hydraulic motor to wheel couplers, where 6-spline agricultural shaft was used on each wheel.
  4. LifeTrac IV - Larger hydraulic motors (45 cu in) were used, and Modular Wheel Units were added. Quick connects added to hydraulic controls. Wheel shaft coupling issues solved. Entry is from the side.
  5. LifeTrac V - Began using LifeTrac Construction Set - 4"x4" square tubing, and increased modularity of construction. Modular Wheel Units continued. Returned to articulated steering and rear ground-higging pivot to separate 2 pivots for ease of fabrication. Introduced Bobcat Standard quick attach. Driver enters cab from front. Foot pedals + joystick valves were used for driving. Build for Our School at Blair Grocery urban farm.
  6. LifeTrac VI - Continued LifeTrac Construction Set. Modular Wheel Units are a robust design feature. Same design, but fixed the loader arm geometry. Used a single curl cylinder, but found that it makes it difficult to enter the cab. Issues with curl geometry. Need to simplify forearms. Reached 75 hp with 3 Power Cubes, such as 25 hp for wheel drive and 50 hp for 6' trencher.
  7. LifeTrac 7 - first tracked version.Continuing Tractor Construction Set with Bulldozer Development. Initial build of tracked tractors. Need for CNC torch table cutting of parts became evident - as making tracks by hand is too time consuming.
  8. LifeTrac v16 - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull.
  9. LifeTrac 17.10 LifeTrac 17.10
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