AC-Powered 10 RPM Tube Rotator
Budget: $30 – $250 USD
Create and deliver a simple tube rotator for molecular biology lab use, such as https://3d.nih.gov/entries/3DPX-002349, to gently mix by inversion at least 16 standard 1.5 mL tubes at approximately 5 to 10 RPM. Use AC power supply and be able to continuously run for 12 hours without detriment.