v1.0.3

• 可以把履带、车轮和起落架装配到机械轴承上。装上动态结构后，会跟随结构一起运动、正常工作。
• Tracks, wheels and oleo landing gear can now be mounted on mechanical bearings! They move along with your contraption and work properly.
• 起落架（Oleo）接入动力系统：接上动力轴后即可作为动力部件运转。
• Oleo landing gear is now a real kinetic component: connect a shaft and it rotates as part of your drivetrain.
• 重量分级重做：履带部件按尺寸分为 小型 / 中型 / 大型 / 巨型，重量比 1 : 2 : 4 : 8。
• Weight tiers reworked: track parts come in Small / Medium / Large / Gigantic with a 1 : 2 : 4 : 8 weight ratio. Heavier vehicles feel more substantial.
• 更平稳的悬挂：悬挂阻尼重新调校，颠簸路面上的回弹更柔和、车身更安定。
• Smoother suspension: damping has been retuned for softer rebounds and a more settled ride.
• 缓慢起步：履带启动时不会瞬间全速冲出去，转速逐渐攀升、与地面速度匹配——起步更平顺，不再打滑窜车。
• Gentle launch: tracks no longer jump to full speed instantly — the drive speed ramps up gradually to match the ground, giving smooth, slip-free starts.