Search the Community
Showing results for tags 'urbino'.
Found 1 result
-
Welcome, I'd like to present a bus Solaris Urbino 12 IV. Specifications Scale 1:15 Length 103s / width 23s / height 27s (83/18/22 cm) Weight: 5,4 kg Front suspension: Independent, double-wishbone Rear suspension: Live axle Suspension with kneeling system RWD 2-speed gearbox AA+AAA Battery Boxes 7 motors Functions Driving - 2XLs Steering - L Opening doors - M Kneeling system - L + Servo Changing gears - M LED headlights Working steering wheel History Some time ago I decided to build a bus. I chose Solaris, beacuse it's a polish concern, which is producing buses and trams. I started building in mid-Febraury, and I finished it few days ago. Chassis The biggest challenge was to construct a strong chassis. We need to remember that it's a low-floor bus. The drive motors and the gearbox are (like the real one) located veritically on the left, behind the rear axle. It's causing big stress and I had to overcome it by the chassis. It consist of 3 parts: at the bottom there is a floor 2s thick, built from panels 5x11 and frames; at the top there are beams 3x3s on each side of the bus, they are built from liftarms. These two elements are combined by 7 rungs. The construction of the chassis is similar to the hulls of ships and planes. Drivetrain The bus is driven by 2 XLs. Gearbox ratio: I - 12,6:1 II - 4,2:1 The gearbox is built from frames, using 2 gear 24, 1 gear 12 and 1 gear 36. The gears are changed by M motor and mini linear actuator. The biggest problem was to lead the drive from gearbox to the axle. It is the weakest point of the bus - 2 universal joints, connected to the gearbox and to the axle, under a load break. Steering For steering I used L motor with reduction 14,4:1. It propels the gear rack 1x13 and also the steering wheel. Suspension Front suspension is independent with 2 yellow 6.5L absorbers per wheel. Rear is live axle. It has 1 grey and 5 yellow 6.5L absorbers (1 grey and 2 yellow for the right side and 3 yellow for the left side). Opening doors + kneeling system The doors are opened by M motor, reducted by 40:1. The drive is transmitted by liftarms used as links. The kneeling system is realised by 2 medium pneumatic cylinders. The pneumatic wires are connected only from one side, so the bus can rise using the absorbers. L motor drives the compressor and servo opens the valve with reduction 3:1. These 3 motors are electrically coupled, so in each door there is a gear with clucth. Thanks to that, the compressor doesn't stop at any time. The most wanted photos :) From the top From the bottom Some photos Gallery