The model contains the most popular formats:
STEP: *.step *.stp (NURBS)
IGES: *.iges *.igs (NURBS)
ACIS: *.sat (NURBS)
3DS MAX all ver.: *.3ds (Multi Format)
Stereolithography: *.stl
AutoCAD: *.dwg
Sincerely Your, SURF3DMORE INFORMATION ABOUT 3D MODELS :THE MINI 4WD ORIGINATED IN JAPAN, IN 1982, WHEN JAPANESE MANUFACTURER TAMIYA INTRODUCED MINI 4WD RACE CARS. A MINI 4WD RACE CAR IS A 1:32 SCALE KIT FEATURING FOUR-WHEEL DRIVE POWERED BY AN ELECTRIC MOTOR USING A PAIR OF AA BATTERIES. A SINGLE ELECTRIC MOTOR TURNS BOTH AXLES. THESE KITS SNAP AND SCREW TOGETHER WITHOUT THE NEED FOR GLUE.
IN A STANDARD 4WD DESIGN, THE SEPARATE FOUR WHEELS ARE ALLOWED TO ROTATE AT DIFFERENT SPEEDS THROUGH THE USE OF DIFFERENTIALS, TO ALLOW FOR CORNERING. THE BODY IS DESIGNED FROM HARD PLASTIC OR LEXAN.
THERE ARE THREE SPECIFICATIONS THAT CHARACTERIZE ALL MOTORS: RPM, TORQUE, AND POWER-CONSUMPTION. RPM IS THE SPEED THE MOTOR PROVIDES, AND THE TORQUE ITS STRENGTH. A HIGHER RPM MEANS HIGHER MAXIMUM SPEED, HIGHER TORQUE GIVES MORE ACCELERATION AND ALLOWS THE CAR TO BETTER WITHSTAND THE DIFFICULTIES OF CLIMBING SLOPES OR RUNNING THROUGH TURNS.