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   Home  |  Research & Development  |  Bill of Materials  |  Manufacturing Instructions  |  User's Manual  |  User Reviews    Bulldozer.png

FreeCAD File Download

Finally, MicroTrac 2015 in FreeCAD - download File:Microtrac 2015.FCStd. To get involved in Design, see OSE FreeCAD Instructionals and download the part libraries at OSE Part Library. By Alec Higgins. Design Doc 1: edit Further Design Notes: edit Calculations: edit


Concept Design

2015 Build

Proof of Concept of MicroTrac Scalability - LifeTrac 7

The MicroTrac is overbuilt to 8000 lb of drive torque plus the ability to carry an extra 6000 lb of weight outside of its existing 2000 lb weight. With the structural Power Cube as the basis for other attachments, the MicroTrac can be scaled in size to build bulldozers by stacking 3 MictroTracs together for 24,000 lb of torque at the tracks. See initial testing of weight handling capacity, where the MicroTrac carries 6000 of dead weight, and is shown running in idle:

Hackaday Documentation

Go to Hackaday - [1]

Loader Arms

Here is a partial prototype of adding a Driver's Cab, second Power Cube, and loader arms to the base tracked platform consisting of tracks and power cube.

Proof of concept of bulldozer modules: tracks, stacked power cubes, cab, and arms.



Development Template

The condition of satisfaction for torque was idle -


Working Document



The Bulldozer is a high-traction, earth-moving machine indispensible to building ponds, berms, or other earth-moving tasks such as building roads or clearing land. See Bulldozer Specification


Most often, bulldozers are large and powerful tracked heavy equipment. The tracks give them excellent ground hold and mobility through very rough terrain. Wide tracks help distribute the bulldozer's weight over a large area (decreasing pressure), thus preventing it from sinking in sandy or muddy ground. Extra wide tracks are known as 'swamp tracks'. Bulldozers have excellent ground hold and a torque divider designed to convert the engine's power into improved dragging ability. The Caterpillar D9, for example, can easily tow tanks that weigh more than 70 tons. Because of these attributes, bulldozers are used to clear areas of obstacles, shrubbery, burnt vehicles, and remains of structures.

The GVCS variant is being pursued as a Tractor bladed retrofit with lower torque, and additional weight

Product Ecology

Made with



  • Hydraulics
  • Blade
  • Blade Lift
  • Ripper
  • Cab
  • Tracks


The Bulldozer is currently in the Research Phase of Product Development.


See Also

OSE Links

The Global Village Construction Set
Habitat CEB Press Cement Mixer Sawmill Bulldozer Backhoe
Agriculture Tractor Seeder Hay Rake Well-Drilling Rig
Microtractor Soil Pulverizer Spader Hay Cutter Trencher
Bakery Oven Dairy Milker Microcombine Baler
Industry Multimachine Ironworker Laser Cutter Welder Plasma Cutter
CNC Torch Table Metal Roller Rod and Wire Mill Press Forge Universal Rotor
3D Printer 3D Scanner CNC Circuit Mill Industrial Robot Chipper Hammermill
Drill Press Induction Furnace
Energy Power Cube Gasifier Burner Solar Concentrator Electric Motor Generator Hydraulic Motor
Steam Engine Heat Exchanger Wind Turbine Pelletizer Universal Power Supply
Nickel-Iron Battery
Materials Aluminum Extractor Bioplastic Extruder
Transportation Car Truck

Imprimante 3D Scanner 3D Extracteur d'Aluminum Pelleteuse Four à Pain Presse à balles de paille Extrudeuse à bioplastiques Bulldozer Voiture Presse BTC Betonnière Broyeur à marteaux Imprimante de circuits électroniques Table de découpe numérique Trayeuse Perçeuse à colonne Moteur électrique Gazogène Faucheuse Râteau à foin Moteur hydraulique Fourneau à induction Bras robotisé Poinçonneuse Découpeur Laser Laminoir à plaques Microcombine Microtracteur Multimachine Batterie Ni-Fe Machine à granulés Torche plasma Power Cube Presse hydraulique Laminoir à barres et fils de fer Pulvérisateur de terre Scierie Semoir Concentrateur solaire Roto-bêche Moteur à vapeur Echangeur de chaleur Tracteur Fraiseuse de tranchée Camion Alimentation électrique universelle Rotor universel Poste de soudure à l'arc Plateforme de forage de puits Eolienne

Key Design Planning Prototype Almost done Full Release