# PX4 Community Q&A: June 28, 2023 **URL:** \ **Category:** PX4 Autopilot\ **Created:** [June 21, 2023, 5:00pm UTC](https://discuss.px4.io/t/px4-community-q-a-june-28-2023/32873 "2023-06-21T17:00:25Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![bradstaff](https://discuss.px4.io/user_avatar/discuss.px4.io/bradstaff/32/13612_2.png) [@bradstaff](https://discuss.px4.io/u/bradstaff)\ **Post date:** [June 26, 2023, 11:20pm UTC](https://discuss.px4.io/t/px4-community-q-a-june-28-2023/32873/2 "2023-06-26T23:20:31Z")
My end goal it to use NAV2 on a Jetson Nano to have a drone navigate around obstacles in a 2D plane. I need to simulate a depth camera and eventually a lidar before I put this on a real system. I’m having a difficult time simulating PX4 with ROS2. There are plenty of tutorials on simulating with ROS2 and Gazebo, and I understand how to simulate my own sitl with PX4, but I can’t get ROS2 to play with my PX4 Gazebo simulations. I want to be able to import my own models and worlds. I know the docs explain how to do it but I feel like I am fighting Gazebo at every turn because it usually doesn’t do what the docs say it will do. I know about ros/gazebo bridge packages, but I can’t get gazebo set up how I want for me to be able to really use those. I’ve been told that you can open your own instance of gazebo and then open a px4 instance and it will spawn the model in your first instance, but that didn’t work for me. The two just ran separately like the other wasn’t there. Here’s a link to the discord discussion on it. > **[Discord - A New Way to Chat with Friends & Communities](https://discord.com/channels/1022170275984457759/1121839769069027358)** > > Discord is the easiest way to communicate over voice, video, and text. Chat, hang out, and stay close with your friends and communities. I’m new to ROS2 and PX4 and have only been working with them for about two months. These issues with simulation feel a little overwhelming. If someone would be willing to hop on a call after the Q&A call after we talk about this a little I would really appreciate it. I’m running this using ROS2 Humble on Ubuntu 22.04. I’ve tried using both Gazebo and Gazebo Classic and ran into similar issues on both. Thank you! I really appreciate the help! --- _[View the full topic](https://discuss.px4.io/t/px4-community-q-a-june-28-2023/32873)._