flight control

Introduction

High-value appearance, low-cost homemade mini laser engraving machine! Open-source - Starlight 4N Mini Laser Engraving Machine

On January 21, 2026, version 6.45 was updated. For replication, please use version 6.45. The functionality is not significantly different from previous versions, with the focus on maintaining this cost-effective solution. The motors from previous versions were packaged and taken for mass production by unscrupulous merchants, and some also ended up in the hands of resellers who stockpiled them for high prices. Therefore, version 6.45 was updated to use dismantled motors from Samsung computer optical drives. Many dismantling factories can consistently produce a large quantity, making it convenient for everyone to replicate and use over the long term. This not only facilitates waste utilization but also keeps costs low, which is a good thing!

The main changes in version 6.45 are the replacement of the motor model, with the travel distance increased from the original 42mm to 50mm. The overall frame structure is also larger than before, but the appearance remains largely unchanged. Structurally, due to the increased size, rigidity has decreased, and considering the uncontrollable factors such as shrinkage and deformation of the 3D printed frame, significant structural optimization is required. The new version will be easier to assemble and debug, with elastic connection optimization and margin design mainly implemented for the Y-axis. Details will be introduced in the assembly tutorial of the new version later

The relevant materials are currently being organized and will be updated and supplemented in the coming days. I will upload the model first, and then focus on maintaining this project

The model has also been made open-source on MakerWorld, with a link provided:https://makerworld.com.cn/zh/models/1834602-xing-guang-4nmi-ni-ji-guang-diao-ke-ji#profileId-2029055

Thank you all for your model support, which has provided motivation for my creation

The relevant materials have been organized and refined, and the tutorials have all been recorded. For detailed content, please refer to the materials (link provided below). They have been neatly organized and categorized (as of December 3, 2025)

Update the links to relevant tutorial videos:

1. Reference video for soldering the Starlight 4N circuit board; Tiktok video link:https://v.douyin.com/QF1Cx4H0Q_8/ Bilibili video link:https://b23.tv/oFYORy0

2. Starlight 4N Hardware Assembly Tutorial (This is a must-see); Tiktok Video Link:https://v.douyin.com/bZNOF7zc98w/ Bilibili video link:https://b23.tv/PYUZ9jS

3. Focusing, flashing firmware, and software usage (this is a tutorial specifically recorded for open-source 4S, and the operation is the same); Tiktok video link:https://v.douyin.com/1EaULGOE6pY/ Bilibili video link:https://b23.tv/UrklNqH

All the materials have been organized and placed on my Bilibili store. Note: Since there is no profit from making DIY open-source projects, I previously charged a small fee for materials to supplement my household expenses (PS: Actually, I only charged three yuan before). I am flattered that Starlight 4N has been well-received by everyone. I plan to provide the materials completely free of charge from November 29, 2025, to January 1, 2026. If I can gain 50,000 followers, I will keep it free forever. One should always have dreams, just in case they come true!

My Tiktok account: Wandering Stars, with a link:https://v.douyin.com/LukY2sroIbU/   

Bilibili account: Wandering Stars - dy, with a link:https://b23.tv/BT30dcG  

Subsequent updates will also be posted on my personal media account

And the link to the collated materials:https://b23.tv/Uzg32d9. Detailed information can be downloaded and viewed by yourself. It's essentially non-profit at 0.01 yuan! Subsequent information will be uniformly organized on my Bilibili homepage store for easy reference. I have already prepared tables and relevant documents, which are clear at a glance. Here are a few screenshots

In addition, I have learned about the wishes of many friends. You can find my Bilibili store (Bilibili nickname: wandering stars-dy) on the homepage of the mobile app

schematic diagram

BOM table

9900fe2c-BOM_2.4G ELRS Receiver ESP8285+SX1280+PA.xlsx

PDF display