8110 Unimog MOD, v1
This is my first modification of the LEGO 8110 Unimog U400 set. I bought it on the secondary market without the pneumatic parts and decided to turn it into a trial truck. I kept the original exterior and interior, removed the transfer case, and added separate motors for the front and rear power take-off (PTO), as well as one PF XL motor for driving and a servo motor for steering.
However, it turned out that one XL motor was not enough for its scale. It would also be desirable to have a greater reduction on the wheels than 3:1. Additionally, the CaDA battery block quickly drains, which worsens the playability. I don’t want to stop at this version and will try to improve its characteristics.
Based on and inspired by MOC-3286
Specs
- Steering: PF Servo motor
- Propulsion: PF XL motor
- Open differentials in axles (no locks)
- Open central differential (no locks)
- Front PTO: PF M motor
- Rear PTO: PF M motor
- Two speed gearbox without neutral - shifted manually by moving the cogwheel
- Without pneumatics
- Powered by a CaDA battery
- Custom LED lights
- Curb weight: 1.78 kg
Gearing:
| Gear | Gears | Final ratio |
|---|---|---|
| 1st | 12:20 -> 16:16 -> 20:28 (diff in axles) -> 8:24 (portals) | 7.01:1 |
| 2nd | 16:16 -> 16:16 -> 20:28 (diff in axles) -> 8:24 (portals) | 4.2:1 |
Photos
