The G25 FFB Transmission uses precision ball bearings: a snap ring version of the DFP "after bearing" and a smaller race version of the MOMO Force transmission (50 mm ID, 72 mm OD) as the "forward bearing" (similar layout to MOMO Force). The main shaft is glass filled Nylon 66 for very high strength with the "bull gear" integrated into the shaft for superior concentricity. Two, high torque, DC motors operate through a 16:1 reduction with a anti-backlash gear system providing direct drive to the motor mounted high resolution optical encoder. This approach means that any movement of the wheel results in movement of the optical encoder for exact input response. Further benefits of the two motor transmission are much lower interia, lower pitch line velocity of the gears for greatly reduced noise, and increased frequency response due to minimized FFB gear backlash (single reduction compared to double reduction). Number of motors, motor torque, and gear ratio were chosen to provide the same torque at the wheel rim as DFP (though it feels like more due to lower system losses). This design approach produces a much lighter feel and a quicker response than a standard gear based double reduction transmission. The wheel uses 3.0 mm thick stainless steel spokes providing a very rigid driving experience, and is hand wrapped with real leather. The hub mounted Paddle Shifters are constructed from 2.0 mm thick SS and operate lever arm switches in the hub (rotate with the wheel). Total rotation is 900 degrees "lock to lock" using a similar stop system as DFP, but without the mechanical 200 degree sliding stop.
The pedals are constructed from plated CRS (cold rolled steel) and stainless steel: 2.2 mm CRS for the arms and frame, 3.0 mm SS for the pedal faces. Shoulder bolts with 8.00 mm diameters, and heavy duty plastic bushings provide a very high tolerance and rigid feel. The potentimeters are gear'ed up, using anti-backlash springs, to produce 55 degrees of potentiometer rotation from 20 degrees of input resulting in very smooth and very fine control. The stops are "metal to metal" to eliminate calibration destroying flex in the system. The pedal arms are connected to the back of the frame, once again, through 8.00 mm dia shoulder bolts, with a piston and cylinder arrangment. Springs of three different rates are enclosed inside these pistons; about twice the strength of DFP's pedal spring for the throttle, very strong for brake and firm for the clutch. These rates were finalized after many interations and many LFS laps! Each frame includes 2 tapped (M6X1 bolts) holes for mounting the pedal set to a simiulator structure, but also includes the patented "carpet lock" grip system used on DFP's pedal set.
The Shifter is a six speed, short throw, with locked out reverse. It is convertable to a standard sequencial to support non-gated shifter games. It is constructed from heat treated CRS, and high strength Delrin engineering plastic. The mechansim is based on potentiometers, not switches, to determine shifter position. It has a spring loaded ball bearing detent that holds it in each gear, and is spring loaded to neutral when not in gear. The shaft is 10.0 mm diameter steel with a alignment flat machined into the top to key the leather shifter knob which is held on with a machine screw. The boot is also made from real leather. The Shifter uses TWO clamps made from steel bolts and glass filled nylon jaws for table attachment and retention. The knob tops have a "spring loaded, push down and rotate to set" feature to prevent them from interfering with the users knuckles while shifting. A center "ANTI-TIP" arm and screw are included to prevent tipping when the shifter is pulled toward the user. It is not a clamp, and should not be over tightened during use. Two tapped (M6X1) brackets allow the Shifter to be mounted onto a similuator frame if desired. It also contains a symetric control panel allowing the Shifter to be mounted on the left or the right side of the user.
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Re: El Post de los Simuladores de Conducción
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Iniciado por miguelo2
) habra podido observar como en el circuito habia publicidad del juego Race y lo mejor es lo que ponia: