LifeTrac Genealogy: Difference between revisions
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#'''LifeTrac v20.12''' - [[ | #'''[[Universal Wheel Unit]]''' | ||
#'''LifeTrac v17.10''' - [[LifeTrac v17.10]] | #'''[[Universal Track Unit]]''' | ||
#'''Microtrac v17.10''' [[MicroTrac v17.10]] | #{{check}}'''[[LifeTrac v20.12]]''' - v11 - Build during [[Summer X 2021]]. Includes work on [[UTU]] and [[UWU]]. Looks rough-and-tumble, but it is a test bed for important ideas related to [[5 Minute Part Replacement]] | ||
#'''[[LifeTrac v16]]''' - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull. | #'''LifeTrac v17.10''' - v10 not build -[[LifeTrac v17.10]]. [[Universal Wheel Unit]] no longer the main drive option due to further breakdown of structure and drive at the product level - drive units no longer have an integral frame in general - to promote [[5 Minute Part Replacement]]. | ||
# | #'''Microtrac v17.10''' - (LifeTrac IX prototypes 1-2 and production model) - in use in 2021 but modified to shorter tracks - [[MicroTrac v17.10]]. Note there were 2 more Microtractor style iterations - the first asymmetrical track version, and a second one with loader and 2 power cubes added to that. Let's call these [[MicroTrac Prototype 1]], [[MicroTrac Prototype 2]] - prior to Mirotrac v17.10. | ||
#'''[[LifeTrac v16]]''' (LifeTrac VIII)- v8 - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull. See more info at [[MicroTrac Genealogy]] | |||
#[[LifeTrac VII]] - first tracked version built. 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. Note [[LifeTrac 7]] was concept only. | |||
#[[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 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. | #[[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. | ||
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#[[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. | #[[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. | ||
#[[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. | #[[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. | ||
#[[LifeTrac I]] - Articultated steering, 4 wheel drive, wheel chains, dedicated 55 hp diesel engine. Limited roll-over protection. | #[[LifeTrac I]] - '''Start in 2008'''. Articultated steering, 4 wheel drive, wheel chains, dedicated 55 hp diesel engine. Limited roll-over protection. | ||
[https://photos.google.com/album/AF1QipNCjA41rLXRlJIjH0bv9KiD7QaXXNKGknY9zThu] | [https://photos.google.com/album/AF1QipNCjA41rLXRlJIjH0bv9KiD7QaXXNKGknY9zThu] | ||
Latest revision as of 01:31, 1 July 2024
- Universal Wheel Unit
- Universal Track Unit
LifeTrac v20.12 - v11 - Build during Summer X 2021. Includes work on UTU and UWU. Looks rough-and-tumble, but it is a test bed for important ideas related to 5 Minute Part Replacement- LifeTrac v17.10 - v10 not build -LifeTrac v17.10. Universal Wheel Unit no longer the main drive option due to further breakdown of structure and drive at the product level - drive units no longer have an integral frame in general - to promote 5 Minute Part Replacement.
- Microtrac v17.10 - (LifeTrac IX prototypes 1-2 and production model) - in use in 2021 but modified to shorter tracks - MicroTrac v17.10. Note there were 2 more Microtractor style iterations - the first asymmetrical track version, and a second one with loader and 2 power cubes added to that. Let's call these MicroTrac Prototype 1, MicroTrac Prototype 2 - prior to Mirotrac v17.10.
- LifeTrac v16 (LifeTrac VIII)- v8 - Tracked tractor 2016 - This was designed purely as a simplified traction machine with 7000 lb of pull. See more info at MicroTrac Genealogy
- LifeTrac VII - first tracked version built. 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. Note LifeTrac 7 was concept only.
- 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 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.
- 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.
- 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.
- 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.
- LifeTrac I - Start in 2008. Articultated steering, 4 wheel drive, wheel chains, dedicated 55 hp diesel engine. Limited roll-over protection.
