VRMedic/Assets/RotateJoint.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RotateJoint : MonoBehaviour
{
    Rigidbody m_Rigidbody;
    Vector3 m_EulerAngleVelocity;
    float timer = 5;
    float defaultTimer = 5;
    void Start()
    {
        m_EulerAngleVelocity = new Vector3(20,20,20);
        m_Rigidbody = GetComponent<Rigidbody>();
    }

    void FixedUpdate()
    {
        timer -= Time.deltaTime;
        if(timer < 0)
        {
            m_EulerAngleVelocity = -m_EulerAngleVelocity;
            timer = defaultTimer;
        }
        
        Quaternion deltaRotation = Quaternion.Euler(m_EulerAngleVelocity * Time.deltaTime);
        m_Rigidbody.MoveRotation(m_Rigidbody.rotation * deltaRotation);
    }
}