Reaching ISO G0.4 Balancing Accuracy with a DIY Balancer, Turbine Project part 4

Описание: Balancing a high-speed turbine rotor to ISO standards is far more difficult than it looks.
In this video (Part 4 of my RC turbine project), I redesign my DIY balancing machine to reach ISO 21940 G0.4 quality, equivalent to correcting an imbalance smaller than a 1 mm ball of sticky tack.
Starting from the limitations of my previous design, I rebuild the rotor assembly, improve the mechanical setup, upgrade the sensor system, and implement advanced signal processing techniques on an ESP32.
🔧 What you’ll see in this video:
• Why my previous balancer was not ISO compliant
• Understanding ISO 21940 G0.4 requirements
• Full rotor assembly with shaft tunnel and ceramic bearings
• DIY hybrid ceramic bearing construction
• Mechanical redesign of the balancing machine
• BMI160 accelerometer vs ADXL335
• ESP32 signal processing: filtering and lock-in detection
• Test mass balancing method
• Achieving ISO-level imbalance in only two iterations
📂 Software & Files:
• ESP32 / Arduino code: https://drive.google.com/file/d/1-5xk...
• Excel balancing tool: https://drive.google.com/file/d/1p9A8...
• 3D printed parts: https://drive.google.com/file/d/1Me_u...

📌 Previous video (Part 3): DIY Turbine Rotor Balancing
📌 Next video (Part 5): Dual-plane balancing and further improvements
If you enjoy CNC machining, turbine engineering, sensors, and precision measurement systems, consider subscribing.
Thanks for watching!
#cnc #engineering #balancing #turbine #esp32 #diymachining #iso21940 #rcjet
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⏱️ CHAPTERS (TIMESTAMPS)
00:00 – Why my previous balancer was wrong
00:31 – About me & the RC turbine project
00:57 – ISO 21940 G0.4 explained
01:44 – Complete rotor assembly overview
02:05 – Shaft tunnel machining
03:16 – Nose nut manufacturing
04:03 – DIY ceramic bearing construction
05:57 – Shaft tunnel assembly
06:55 – Balancer mechanical redesign
07:11 – Electronics: BMI160 + ESP32
08:21 – First test and limitations
08:48 – ESP32 software and signal processing
09:54 – Test mass balancing procedure
12:18 – Achieving ISO G0.4 in two iterations
12:41 – Conclusions and what’s next