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Revision to LifeTrac

Marcin

[image|765|size=medium]
-This insane freak purrs like a cat and rips the ground. Major success.We have now demonstrated a workable design with LifeTrac II. Can it be any simpler? We took out the articulated joint that was present in LifeTrac I, since OSE Specifications prioritize simplicity. Skid steering may not be as elegant as articulated steering, but it works just as well. Moreover, a fixed wheel base allows us to mount tracks on the wheels, such that the obtainable traction surpasses that possible with LifeTrac I – which cannot accomodate tracks because of its articulated joint.
+This insane freak purrs like a cat and rips the ground. Major success.We have now demonstrated a workable design with LifeTrac 5. We took the articulated joint that was present in LifeTrac I - to allow long-life on the shafts - which experience much less wear compared to skid steering.
-The frame is bolted together from 1/4″x4″x4″ mild steel square tubing. A hydraulic motor is mounted on each wheel. Quick-connect hoses run from each motor to the control valve. The PowerCube connects to the control valve with two additional quick-connect hoses.
+The frame is bolted together from 1/4″x4″x4″ mild steel square tubing. 4 modular wheel units snap right on the frame. Quick-connect hoses are used throughout for plug-and-play interchangeability of parts. 1 ro 4 PowerCubes can be used.
-The flexibility of the design is extraordinary – wheel motors are detachable and have quick couplers. The valve is detachable and has quick couplers. The hoses have quick couplers. This means that all these hydraulic components may be used elsewhere, as part of a flexible Lego set for real technology. Moreover, the quick disconnects allow this tractor to operate in 2 wheel drive and 4 wheel drive.
+The flexibility of the design is extraordinary – wheel motors are detachable and have quick couplers. The valves are detachable and has quick couplers. The hoses have quick couplers. This means that all these hydraulic components may be used elsewhere, as part of a flexible Lego set for real technology. Moreover, the quick disconnects allow this tractor to operate in 2 wheel drive and 4 wheel drive.
We know of no other machine in this world which features this level of part interchangeability or modularity. This is a feature that allows one to control equipment costs to the lowest possible – not only by repurposing components, but being able to service or repair the machine readily.
-It turns out that 18 horsepower – or a single PowerCube unit – is quite satisfactory for driving this basic tractor. The next step is to build tracks to connect the wheel pair on each side, such that traction is never lost on uneven terrain.
+It turns out that 27 horsepower – or a single PowerCube unit – is quite satisfactory for driving this basic tractor.
-If you would like to build the above tractor, the Blender drawings of 23rd of August, 2010, are exactly what we built as far as the frame above. We may shorten the wheel base if we have problems with skid steering – so this is a consideration for any early adopters out there.
+If you would like to replicate this tractor - we suggest it only if you are an early adapter and if you can resolve some of the outstanding issues:
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+1. Redesign of loader arm attachment
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+2. Reduction in the size of the Power Cube compartment
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+3. Redesign of curl cylinder
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+Hydraulic system refinement to allow 3 or 4 power cubes.
== Test Drive Video ==

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